ocean and sea ice saf cdop-2 product requirement document · final prd of cdop-1 approved by sg...
TRANSCRIPT
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 1 - osisaf_cdop2_gen_prd_3_7
Ocean and Sea Ice SAF CDOP-2
Product Requirement Document
Version : 3.7 Date : 7 November 2016 Prepared by DMI, IFREMER, KNMI, Météo-France and MET Norway Reviewed by OSI SAF Project Manager Approved by OSI SAF Steering Group
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 2 - osisaf_cdop2_gen_prd_3_7
DOCUMENTATION CHANGE RECORD
Issue / Revision
Date : Change description :
1_0_draft_a
22 April 2008
Initial draft version for submission to CDOP SG03.
1_0 29 may 2008
Version as revised and approved at SG03.
1_1_draft_a
6 January 2009
Modifications in § 6.3 concerning the Sea Ice products, in particular Sea Ice Drift products are proposed to be split between Low resolution (osi-405) and medium resolution (osi-407) products.
1_1 15 January 2009
Version as revised and approved at SG04.
1_2_draft_a
20 May 2009
Re-numbering of the requirements in order to allow new requirements to be included. New requirements included :
- §6.3 : OSI-PRD-PRO-205 : The OSI SAF shall reprocess the time series of SMMR and SSMIS data back to 1978 to expand the time series of global sea ice products.
- §6.3 : OSI-PRD-PRO-206 : The OSI SAF shall test new methods for ensuring a climate consistent data set.
- §6.3 : OSI-PRD-PRO-207 : The OSI SAF shall improve the coverage of the existing sea ice concentration, edge and type products by adding interpolation in the coastal zone and the area close to the pole where there are no satellite data coverage (Action OSI-CDOP-SG03-09).
- §6.1 : OSI-PRD-PRO-1 : GBL SST (OSI-201) and NAR SST (OSI-202) shall be delivered in NetCDF L3P core. (Action OSI-CDOP-SG04-05).
- §6.4 : OSI-PRD-PRO-300 : SeaWinds 25km Winds (OSI-101), SeaWinds 100km Winds (OSI-102), ASCAT 25km Winds (OSI-101), and ASCAT 12.5 km Winds (OSI-103) shall be delivered in NetCDF.
Modifications (Action OSI-CDOP-SG04-08) :
- §6.1 : ATL SST (OSI-206) split into MET SST (OSI-206) and GOES-E SST (OSI-207), with extended area,
- §6.2 : ATL DLI (OSI-303) split into MET DLI (OSI-303) and GOES-E DLSI (OSI-305), with extended area and resolution improved at 0.05° lat-lon,
-§6.2 : ATL SSI (OSI-304) split into MET SSI (OSI-304) and GOES-E SSI (OSI-306), with extended area and resolution improved at 0.05° lat-lon. Other modifications : - §6.3 : Global Sea Ice Concentration (OSI-401) split into Global Sea Ice Concentration (OSI-401) derived from SMM/I and SSMIS, and Global AMSRE Sea Ice Concentration (OSI-408).
1_2_draft_b
22 June 2009
- §6.3 : Global reprocessed Sea Ice Concentration Data set OSI-409 added.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 3 - osisaf_cdop2_gen_prd_3_7
1_2_draft_c
03 September 2009
-§ 6.4.: OSI-PRD-PRO-301 to OSI-PRD-PRO-306 requirements have been modified in order to clarify the distinction between the requirements of BUFR and NetCDF products.
1_2 03 September 2009
Version approved by SG.
1_3_draft_a
30 May 2011
UMARF replaced by EUMETSAT DATA CENTRE (EDC). Following OR7-action3 :
- Access through NAIAD; OSI-PRD-GEN-403, table 6.1 (OSI-204) and table 6.4 (OSI-102) updated,
- New requirement OSI-PRD-PRO-208 added 1_3 07 June
2011 Same as version 1_3_draft_a, approved by SG.
1_4_draft_a
11 October 2011
- Section 6.3 : OSI-409 reprocessing time period specified (1978-2009).
1_4 11 October 2011
Same as 1_4_draft, version approved by SG.
1_5_draft_a
28 February 2012
Following action SG08-act10 and 2012 HL Sea Ice Review : - OSI-PRD-PRO-200, updated for OSI-404 and OSI-406, - OSI-PRD-PRO-209 added, - OSI-PRD-PRO-210 added.
1_5_draft_b
15 March 2012
Following decision OSI-CDOP-SG07-08, dissemination of MGR SST (OSI-204) via EUMETCast added in section 6.1. Following CDOP-1 close out SG meeting, modifications were made in tables of section 6 as following:
- OSI-408 (Global AMSR Sea Ice Concentration) removed due to lack of satellite data in the timeframe of CDOP-1. Note: The development of Global AMSR Sea Ice Concentration is planned to resume in CDOP-2, based on japanese satellite GCOM-W.
- Use of SSMI/S removed for Sea Ice products OSI-401, -402,
-403, -404, -405. Notes: 1) There was no commitment in CDOP-1 Project plan for developing the use of SSMI/S for OSI-405. 2) Use of SSMI/S for OSI-401, -402, -403, -404 is backlogged to CDOP-2.
- Use of NPP/VIIRS removed for SST products OSI-202, OSI-
203, and for Sea Ice product OSI-406. Notes: 1) There was no commitment in CDOP-1 Project plan for developing the use of NPP/VIIRS for OSI-203 and OSI-406. 2) Use of NPP/VIIRS for OSI-202 is backlogged to CDOP-2.
- Column “expected start of operation resp. availability” no longer considered as relevant and removed.
1_5 15 March 2012
Final PRD of CDOP-1 approved by SG (identical to 1_5_draft_b)
2_0_draft_a
28 August 2012
First draft submitted to CDOP-2 SG. This version is an evolution of CDOP-1 PRD. It takes into account CDOP-2 proposal, and also the more recent context. Main changes are :
- OSI-PRD-PRO-300 : CFOSAT, HY-2 and Meteor-M wind products added (products osi-106, 107, 108)
- OSI-PRD-PRO-300 : Metop-B ASCAT 12.5 km product( osi-
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 4 - osisaf_cdop2_gen_prd_3_7
103-b) removed. (due to EUMETSAT operational dissemination of the full resolution data the coastal product will become fully operational, making the 12.5 km useless)
- OSI-PRD-GEN-500 and OSI-PRD-PRO-1 : Clarification of SST coverage over High Latitudes for Sea Ice product osi-203-x
- OSI-PRD-PRO-300 : Minor changes requested by OSCAT PCR.
- Table in §1.4 updated
2_1_draft_a
12 October 2012
OSI-PRD-GEN-201 and WUS-1 modified [see df01 and df04 requests] OSI-PRD-GEN-404/305/306/307 indicated as obsolete [see df03 request] OSI-PRD-PRO-200 modified for OSI-430 product (“Daily product with maximum one month delay “added).
2_1_draft_b
OSI-107 product removed Requirement on lake surface temperature added OSI-PRD-GEN-401 extended to “other agreed formats and dissemination means required by substantial users communities “. “Spatial Resolution” replaced by “spatial sampling” in tables of sections 6.1, 6.2, 6.3, 6.4. Chapter 2 wording improved to better take into account key application areas of OSI SAF products (marine meteorology, NWP etc…). A reference to some users requirements sources has been added. Remarks added (section 8).
2_1 Approved at CDOP-2 SG02 meeting on 25 October 2012. 2_2_draft_a
12 Feb 2013
Introduced OSI-401-a, OSI-402-a, OSI-403-a, OSI-405-a, the SSMIS based products superseding the SSM/I based products.
2_2 15 Feb 2013
Same as version 2_2_draft_a, approved by CDOP-2 SG members on 15 February 2013.
2_3_draft_a
16 October 2013
Temporal averaging period of the wind and sea ice products requirements added following OR-9 action 8 (i.e. CDOP-2 SG03 action 10). Taking into account the multi-year ice area for the OSI-403 products regarding the CDOP-2 SG03 action 6). TBDs in the different tables deleted when it is possible following OR-9 action 9 (i.e. CDOP-2 SG03 action 11). Other minor changes.
2_3_draft_b
22 October 2013 25 October 2013
Resolution of SeaWinds reprocessed products is 25 + 50 km rather than 25 + 100 km Addition of the interaction with ESA CCI project for the product OSI-450, see * at the end of the sea ice products table.
2_3 18 November 2013
Same as version 2_3_draft_b, approved by CDOP-2 SG members on 05 November 2013.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 5 - osisaf_cdop2_gen_prd_3_7
2_4_draft_a
28 November 2013 13 December 2013
Removal of the number of users and countries in the column “Application and main users” from all products tables. Addition of the OSI-404a, OSI-406a, OSI-407a and OSI-408a products in the Sea Ice products table. Some pieces of information added concerning availability of sensors for Sea Ice products OSI-402b, OSI-403b and OSI-405b. Removing of the TBD and other minor changes in the Sea Ice products table.
2_4 15 January 2014
Same as version 2_4_draft_a, approved by CDOP-2 SG members on 06 January 2014.
2_5_draft_a
16 January 2014
Added OSI-409a product in the sea ice table. Added remarks and updated text in the sea ice products table, according to PCR review.
2_5_draft_b
28 January 2014
Added remarks and updated text in the wind products table, according to RR+PCR review. OSI-PRD-GEN-100 extended to : “Nominal quality data are defined as input data that successfully pass all input data tests in the OSI SAF processing.
2_5 04 February 2014
Same as version 2_5_draft_a, approved by CDOP-2 SG members on 03 February 2014.
2_6_draft_a
05 February 2014
Removing of the TBDs for Metop-A IASI SST product.
2_6 28 May 2014
Same as version 2_6_draft_a, approved by CDOP-2 SG members on 28 May 2014 at DMI.
3_0_draft_b
19 September 2014
Updated version taking into account actions from OSI SAF MTG Requirements Review : RID #001 : requirements about product formats and dissemination (formerly OSI-PRD-GEN-400 to 403) re-formulated to avoid ambiguity. The baseline for OSI SAF MTG products format is netCDF only. RID #004 : threshold, target and objective accuracies provided for daily radiative fluxes products. RID #008 : SAF Level 2 Products Generation and Dissemination Baseline for MTG [AD-6] added as an applicable document. RIDs #008, #020 and #023 : end-to-end timeliness of MTG products (OSI-206b, OSI-303b and OSI-304b) aligned with L2SAF document [AD.6], and information on production frequency added in product tables. End-to-end timeliness definition provided as a note in section 5.2.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 6 - osisaf_cdop2_gen_prd_3_7
RID #009 : applicable documents [AD-3] and [AD-4] updated. RID #021 : optimal bias requirement for SST products changed from 0° to 0.1° C RID #003 : MTG Mission requirements document [previous AD-6] removed from applicable documents Acronym GCOS added in 1.4
3_0_draft_d
31/10/2014 Update of wind products
3_0_draft_e
05/11/2014 Add of OSI-112 (ScatSat winds)
3_0_draft_f
12/11/2014 Updated version taking into account recommendation R1 from OSI SAF MTG Requirements Review : RID #025 : a requirement has been added, stating that the operational status of a product is based on the threshold value of the accuracy requirements (OSI-PRD-GEN-101)
3_0_draft_g
01/12/2014 Updated version after SG06 (Actions OSI-CDOP2-SG06-12 and OSI-CDOP-2-SG06-04) : - Refine the requirements for OSI-450 to document added value from the ESA CCI contributions (6.3). - Acronym ESA and CCI added in 1.4 - 12km spatial sampling added for OSI-109 - L3 removed from OSI-150, OSI-151, OSI-152, OSI-153 wind products Update of Sea Ice products : - OSI-403-b and OSI-402-b : AMSR-2 and OceanSat-2 removed from input + expected operational date advanced to 2015 - OSI-405b : OceanSat-2 removed from input + expected operational date postponed to 2015 - Add of OSI-402-c, OSI-403c (both with AMSR-2) and OSI-405-c (uncertainties) - OSI-406-a operational date postponed to 2015 - Add of SSM/I in OSI-PRD-PRO-205
3_0_draft_h
19/12/2014 OSI-204 : data center removed from dissemination means (this was a mistake) For OSI-203b and OSI-205 PCR, IST accuracy (Threshold, Target and Optimal) added.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 7 - osisaf_cdop2_gen_prd_3_7
3_0_draft_i
05/01/2015 - OSI-203 (AHL SST) corrected (operational and without SIST), grib format added. - New line for OSI-203-a - OSI-205 (FRN SST) corrected (not operational and includes SIST) - removed OSI-205-d and corrected OSI-205 b and c, so now in line with OSI-203 b and c. - corrected some expected dates - added IR radiometer in validation method - section 6.3 : correction of some of the footnotes, as well as removing footnote 4, which is no longer valid. Footnote 2 is removed from OSI-403 and put in the header. Footnote (1) is put in OSI-403 validation method column.
3_0_draft_j
15/01/2015 IST changed to SIST SIST and SSIST added in the acronyms list. Changed names and acronyms of OSI-203-x and OSI-205-x products : OSI-203 serie renamed from NHL SST to NHL SSIST (to become HL SSIST in the next evolutions) OSI-205 serie renamed from FRN SST to L2 SSIST. Reformulated Characteristics and Validation columns for OSI-203-x and OSI-205-x products : OSI-203 serie and OSI-205 serie : Characteristics and methods, verification/validation methods columns completed with SIST parameters (recommended in OSI SAF RR OSI-203-a and OSI-205 SST and SIST products Minutes : EUM/TSS/MIN/15/789846)
3_0 23/01/2015 OSI-109 : 12km spatial sampling corrected to 50km Version approved by e-mail by the SG on the 23/01/2015
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 8 - osisaf_cdop2_gen_prd_3_7
3_1 draft a
02/02/2015 Modifications related to OSI-151 DRR (January 2015) : - product renamed from ‘Reprocessed QuikSCAT L2 Winds’ to ‘Reprocessed SeaWinds L2 25 km and 50 km winds’. - ‘Wind speed stability better than 0.1 m/s in 10 years’ added in Target accuracy. OSI-105 : ‘EUMETcast’ removed as dissemination mean as product is discontinued since 20 February 2014. Archive available OSI-305-b (DLI based on GOES-R), OSI-306-b (SSI based on GOES-R), OSI-207-b (SST based on GOES-R) crossed : GOES-R will be in West position, not East.
3_1 draft b
13/02/2015 Modifications related to OSI-201b, OSI-202b, OSI-204b PCR Action 1 : - OSI-204-b (MGR SST) : data centre removed from dissemination means (as OSI-204) - Production frequency added for OSI-204, OSI-204-b (MGR SST) and OSI-208 (IASI SST). Column “Production Frequency” added for wind products (was already added for other products in PRD version 3_0). “Production Frequency” updated to “N.A.” for all reprocessed datasets (was a mistake in PRD version 3_0).
3_1 draft c
23/02/2015 Modification related to Action OSI-CDOP2-SG06-04 : EUMETSAT Member States request about wind in STG-AFG added in section “2. Important oceanic features and requirements for satellite data”.
3_1 draft d
10/03/2015 Discontinuation of the Metop-A ASCAT 12.5 km Hamming window based winds (OSI-103) planned by STG#64 and Council in the document "Status of consolidation of the ASCAT Product Portfolio, including the full-resolution product". The OSI-103 winds have already been replaced by the ASCAT coastal winds for Metop-A (OSI-104) and Metop-B (OSI-104-b) in the OSI SAF list of products. Acronyms GLB and GBL were used for Global Oceans -> GLB replaced by GBL.
3_1 draft e
13/03/2015 Modifications related to OSI-109 ORR (March 2015) : OSI-109 split into 4 lines : each of the RadipScat 25 km and 50 km wind products are available in 2 timeliness (2 hours and 3 hours). Note (8) added to explain.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 9 - osisaf_cdop2_gen_prd_3_7
3_1 draft e bis
19/03/2015 Some updates removed from 3_1 draft b (and also from this change record) : to be proposed in next PRD update in connection with MSch update.
3_1 17/04/2015 Version approved by e-mail by the SG
3_2 12/06/2015 Modifications related to OSI-203-a and OSI-205 PCR : satellite input data updated and production frequency added for OSI-205 series : 12h OSI-DCR-2015-002 approved by SG on the 12/06/2015 according to Action OSI-CDOP2-SG07-01 Modifications related to OSI-401-b, OSI-402-b, OSI-403-b,OSI-405-b, OSI-430 ORR and OSI-409-a DRR (March 2015) : OSI-405-x series accuracy updated with “on both x and y components” OSI-DCR-2015-003 approved by SG on the 12/06/2015 according to “information to SG” in the review minutes (EUM/TSS/REP/15/796445). Reprocessed SeaWinds L2 25 km and 50 km (OSI-151) identified as two different products OSI-151-a (Reprocessed SeaWinds L2 25 km) and OSI-151-b (Reprocessed SeaWinds L2 50 km) OSI-DCR-2015-006 approved by SG on the 12/06/2015 according Decision OSI-CDOP2-SG07-11. OSI-406 (respectively OSI-406-a) requirement to be fulfilled in the OSI-203-a (respectively OSI-203-b) product (not in a independent OSI-406 product) OSI-DCR-2015-013 approved by SG on the 12/06/2015 according Decision OSI-CDOP2-SG07-17.
3_3 23/11/2015 OSI-250 (Reprocessed MSG/SEVIRI SST) requirements redefined. OSI-DCR-2015-014 approved by SG on the 11/09/2015 (Decision OSI-CDOP2-SG08-08). Correction of IASI SST (OSI-208) timeliness to 4h (was already done in SeSp 2_3_draft_f) according to OSI SAF IASI SST (OSI-208) ORR recommendation 1 and SG decision OSI-CDOP2-SG05-15. OSI-DCR-2015-011 approved by SG on the 04/11/2015. Replacement of periods by frequencies (12h → 2 per day for example) in column “production frequency”. Production frequency of OSI-301, -b, -c and OSI-302, -b, -c corrected to “1 per day” (instead of 2), these products are daily products. OSI-DCR-2015-018 approved by SG on the 04/11/2015. Removal of column “Expected date for Operations if not operational (O) at beginning of the CDOP-2” Merge of OSI-301-b and OSI-301-c because OSI-301-b will contain what was planned for OSI-301-c ; Merge of OSI-302-b and OSI-302-c because OSI-302-b will contain what was planned for OSI-302-c ; Addition of OSI-401-c, which was missing (but already in MSch) ;
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 10 - osisaf_cdop2_gen_prd_3_7
Deletion of OSI-408-a : no evolution of this product is planned in CDOP2 (in accordance with MSch). OSI-DCR-2015-012 (version 1.1) approved by SG on the 04/11/2015.
3_4 29/03/2016 Update of Sea Ice Concentration data record (OSI-450) time period (change "Oct 1978-2015" to "Jan 1979-Dec 2015", justified by the late start of ERA-Interim data) Update of OSI-450 title according to EUMETSAT Secretariat through the Working Group for Data Record Generation : "Global Sea Ice Concentration Climate Data Record" (new acronym : GBL SICO CDR) OSI-DCR-2015-022 version 1.1 approved by SG on the 31/01/2016. Update of the OSI-450 validation method : validate separately the 0% and 100% sea ice cases, the accuracy targets applying to both separately. Removal of the requirements on validation method for sea ice products from OSI-PRD-PRO-208 and add of details on validation method in the product table (OSI-PRD-PRO-200). OSI-DCR-2015-024 version 1.1 approved by SG on the 31/01/2016. - correction of typo in OSI-PRD-GEN-101 (that replaced by than) - O&SI SAF replaced by OSI SAF - update of definition of area defined for sea ice products in OSI-PRD-GEN-500 (NH : north of 35°N) - update of product types (in the tables) : NRT product, Archive product, Off line product or data record. - update of verification/validation methods for sea ice concentration data records (OSI-409, OSI-409-a, OSI-450) : “Comparison with high spatial resolution manual ice charts (available between twice a week and once a week)” - in Characteristics and Methods for OSI-409, OSI-409-a, OSI-430 and OSI-450 : mention of “Includes per-grid cell uncertainties.” - use of past for finished actions in note about Interaction with ESA CCI projects. OSI-DCR-2015-25 version 1.0 approved by SG on the 31/01/2016. Evolution of OSI-203-a requirements corresponding to inclusion of sea ice probabilities (OSI-406 requirements) in the product. OSI-DCR-2015-26 version 1.1 approved by SG on the 11/03/2016.
3_5 03/05/2016 Update of the formulation of OSI-450 requirements : “verification/validation method” should be “Comparison with high spatial resolution manual ice charts (available between twice a week and once a week) : the performance shall be valided for only the “ice” and “water” cases, separately.” SG decision OSI-CDOP2-SG09-04 on the 27/04/2016. Split of ASCAT L2 winds data record (OSI-150) into 2 products with different identifiers : - ASCAT L2 25 km winds data record (OSI-150-a)
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 11 - osisaf_cdop2_gen_prd_3_7
- ASCAT L2 12.5 km winds data record (OSI-150-b) “gridded wind vectors” removed from “Characteristics and Methods” for all wind data records (OSI-150-a, OSI-150-b, OSI-151-a, OSI-151-b, OSI-152, OSI-153). “ice probabilities” removed from SeaWinds winds data records (OSI-151-a and OSI-151-b). OSI-DCR-2015-020 approved by SG on the 26/04/2016 according to decision OSI-CDOP2-SG09-11. Update of OSI-205 target and threshold requirements proposed at ORR. Changed abbreviations OSI-205: SSIST → SST/IST, SIST → IST Deliver frequency OSI-205: 250 files per day, not 2. OSI-DCR-2016-003 v1.0 approved by SG on the 26/04/2016 according to decision OSI-CDOP2-SG09-13. FY-3E winds (OSI-111) cannot become operational in CDOP2 because data will not be available in CDOP2.It is now planned for CDOP3. CFOSAT winds (OSI-106) and Meteor-M winds (OSI-108) are also planned for CDOP3 (so not crossed but with an indication on operationalization in CDOP3). OSI-DCR-2016-010 v1.1 approved by SG on the 27/04/2016 according to decision OSI-CDOP2-SG09-19 Removal of OSI-401-c (Decision OSICDOP2-SG09-22 on the 26/04/2016 to remove OSI-401-c from top-level documentation) as the OSI-401-b covers the requirements of OSI-401-c. Action OSI-CDOP2-SG09-05 : PT to remove OSI-401-c in PRD, related milestones in MSch and other top-level documents.
3_6 26/09/2016 Update of sea ice emissivity requirements according to new validation method presented at DRI close-out (March 2016) OSI-DCR-2016-004 version 1.0 approved by email by SG on the 23/09/2016. Operational implementation of OSI-203-c and OSI-205-c moved to CDOP3. OSI-DCR-2016-012 version 1.0 approved by SG on the 27/04/2016. Split between 25 km winds (OSI-153-a) and 50 km winds (OSI-153-b) OSI-DCR-2016-013 version 1.0 approved by SG on the 30/08/2016.
3_7 07/11/2016 No GRIB dissemination of Global AMSR Sea Ice Concentration (OSI-408), only NetCDF. OSI-DCR-2016-017 v1.0 approved by SG on the 06/10/2016. Update of sea ice edge OSI-402-c Southern Hemisphere Requirements. OSI-DCR-2016-018 v1.0 approved by SG on the 04/11/2016.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 12 - osisaf_cdop2_gen_prd_3_7
Operations of HY-2 winds (OSI-107) and ScatSat winds (OSI-112) in CDOP3. OSI-DCR-2016-022 v1.0 approved by SG on the 04/11/2016.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 13 - osisaf_cdop2_gen_prd_3_7
Table of contents
1. Introduction .......................................................................................................................... 10 2. Important oceanic features and requirements for satellite data............................................ 14 3. Overview on the OSI SAF target production ....................................................................... 16 4. Main applications of the OSI SAF products ........................................................................ 17 5. General requirements ........................................................................................................... 18 6. Products requirements .......................................................................................................... 21 7. Web Site User Support requirements ................................................................................... 37 8. Remarks............................................................................................................................... 37
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 14 - osisaf_cdop2_gen_prd_3_7
1. Introduction 1.1 Purpose of the document and considerata The purpose of this document is to provide the characteristics of products and services to be provided in the long term, e.g. at the end of the CDOP-2. It describes the committed target for development and operations. It is the main reference document for all development related reviews. It indicates to the users what can be expected after completion of planned developments. The document is structured as follows: Chapter 1: This introduction Chapter 2: Provides background information on important oceanic features and
requirements for satellite data. Chapter 3: Brings OSI SAF basic objectives. Chapter 4: Presents an overview on the products target applications. Chapter 5: Details the OSI SAF general requirements. Chapter 6: Details the OSI SAF requirements for each product. Chapter 7: Details the Web Site User Support requirements. Note : In complement to this document, the characteristics of current (pre-) operational products and services are described in the Service Specification document (SESP). This document, and its evolutions, are subject to approval by the OSI SAF Steering Group.
1.2 Applicable Documents [AD.1] Agreement between the European Organisation for the Exploitation of
Meteorological Satellites and Météo-France on the second Continuous Development and Operations Phase of a EUMETSAT Satellite Applications Facility on Ocean and Sea Ice, and annexes.
[AD.3] MTG End-User Requirements Document, EUM/MTG/SPE/07/0036. [AD.4] EPS-SG Programme End User Requirements Document,
EUM/PEPS/REQ/09/0151. [AD.5] Definition of Product Status Categories for the SAF Network,
EUM/PPS/TEN/07/0036. [AD.6] SAF Level 2 Products Generation and Dissemination Baseline for MTG, EUM/STG/64/14/DOC/08. Reference to an Applicable Document within the body of this Document is indicated as reference in the list above, e.g. [AD.1].
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 15 - osisaf_cdop2_gen_prd_3_7
1.3 Terminology Each user requirement in the OSI SAF PRD bears a unique identification number which will be used for cross-reference in other documents of the OSI SAF. - Requirements that are considered as mandatory and which are committed for,
are stated with a "shall". - Requirements that are considered as desirable but which are not committed for
at this stage, are stated with a "should". - - Requirements that are still pending definition or approval are flagged with either
a TBD (To Be Defined) or a TBC (To Be Confirmed). In this document the requirements are referenced OSI-PRD.
1.4 Definitions, acronyms and abbreviations AHL Atlantic High Latitude AMSR-E Advanced Microwave Scanning Radiometer - Earth Observing
System AMSU Advanced Microwave Sounding Unit ASCAT Advanced SCATterometer ATL Atlantic low and mid latitude AVHRR Advanced Very High Resolution Radiometer BUFR Binary Universal Format Representation CCI Climate Change Initiative (ESA Programme) CDOP Continuous Development and Operations Phase CMS Centre de Météorologie Spatiale DLI Downward Long wave Irradiance DMI Danish Meteorological Institute DMSP Defense Meteorological Satellite Program ECMWF European Centre for Medium range Weather Forecast EDC EUMETSAT Data Centre EPS European Polar System ESA European Space Agency FAQ Frequently Asked Question FAR False Alarm Ratio FTP File Transfer Protocol GCOM-W Global Change Observation Mission- Water (JAXA mission) GCOS Global Climate Observing System GEO Geostationary Earth Orbit GBL Global oceans GOES Geostationary Operational Environmental Satellite GRIB GRIdded Binary format GTS Global Transmission System HIRLAM High Resolution Limited Area Model HL High Latitude HRIT High Rate Information Transmission IASI Infrared Atmospheric Sounding Interferometer IFREMER Institut Français de Recherche pour l’Exploitation de la MER IOP Initial Operational Phase ISRO Indian Space Research Organisation
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 16 - osisaf_cdop2_gen_prd_3_7
JAXA Japan Aerospace Exploration Agency JPSS Joint Polar Satellite System (NOAA and NASA) KNMI Koninklijk Nederlands Meteorologisch Instituut LEO Low Earth Orbit LML Low and Mid Latitude MAP Merged Atlantic Product MET Operational Meteosat covering Africa and Europe METEOSAT Operational Meteosat covering Africa and Europe Metop Meteorological operational satellite M-F Météo-France MSG Meteosat Second Generation NAR Northern Atlantic and Regional NCEP National Centre for Environmental Prediction NESDIS National Environmental Satellite, Data and Information Service NMS National Meteorological Service NOAA National Oceanic and Atmospheric Administration NPP NPOESS Preparatory Project NPOESS National Polar-orbiting Operational Environmental Satellite System NRT Near Real-Time NWP Numerical Weather Prediction OCEANSAT-2 ISRO Meteorological satellite launched in 2009 OSCAT Oceansat-2 SCATterometer OSI SAF Ocean and Sea Ice SAF PoD Probability of Detection QC Quality Control R&D Research and Development RMDCN Regional Meteorological Data Communication Network RMS Root-Mean-Squared SAF Satellite Application Facility Std Dev Standard deviation SEVIRI Spinning Enhanced Visible and Infra-Red Imager IST (Sea) Ice Surface Temperature SSI Surface Short wave Irradiance SSMI Special Sensor Microwave Imager SSMIS Special Sensor Microwave Imager and Sounder SST/IST Sea and Sea Ice Surface Temperature SST Sea Surface Temperature TBC To Be Confirmed TBD To Be Defined UMARF Unified Meteorological Archive & Retrieval Facility VIIRS Visible/Infrared Imager/Radiometer Suite WMO World Meteorological Organisation WVC Wind Vector Cell WWW World Wide Web
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 17 - osisaf_cdop2_gen_prd_3_7
2. Important oceanic features and requirements for satellite data The research in oceanography, the monitoring of climate and coastal environment, the operational Numerical Weather Prediction (NWP) and marine meteorology, the Navy operations and the off-shore activities have a common need to observe, describe, analyse and forecast the state of the oceans and its variations. In this respect, the measurement of oceanic physical parameters (temperature, salinity and currents), as well as momentum, energy and fresh water exchanges at the ocean/atmosphere interface which drive their evolution, is of extreme importance. Because of its physical nature, the ocean is much more difficult to observe than the atmosphere : most of the significant phenomena have a characteristic size which is one order of magnitude smaller than their equivalent in the atmosphere, and most of the signals are weaker. Moreover, the environmental conditions at sea make the in-situ measurements more difficult and more expensive than over land. As an example, the oceanic meso-scale eddies, which dominate the oceanic signal in most basins, have a typical size between 10 and 300 km, while the atmospheric synoptic perturbations have a typical size of 1000 km. The temporal spectrum of significant oceanic signals is also very wide, between a few hours (surface waves, internal waves, tides...) and a few months or years (eddies, equatorial waves, subtropical gyres and associated currents). All these reasons make the earth observation satellites a unique opportunity to observe the oceans with the necessary coverage, sampling and availability in operational conditions, which an in-situ measurement network would never fulfil alone. Nevertheless, the ocean is opaque for electromagnetic radiation, which implies that only surface signals can be observed from space. As a consequence, the knowledge of the three-dimensional structure of the oceans requires the combined use of satellite observations, in-situ observations and ocean numerical models through assimilation techniques. Momentum exchange between the atmosphere and the ocean determines wave spectra, storm surges, ocean circulation. The measurement of near-surface wind by scatterometer is of utmost importance, in particular for operational marine meteorology, operational NWP, ocean modelling and climate research.. Sea Surface Temperature (SST) is a key oceanic variable, which drives the turbulent heat fluxes at the ocean/atmosphere interface. Therefore, an accurate knowledge of the SST field is needed for marine meteorology, operational NWP and ocean modelling, and SST evolution is a key indicator of climate change. In addition, two important components of the heat budget at the ocean surface, which drives its evolution, can be inferred from satellite visible and infrared radiometers : the radiative short wave and long wave fluxes. No direct routine measurements of the radiative fluxes are available from ships or buoys, as the maintenance of pyranometers or pyrgeometers at sea is very difficult, and requires in addition a frequent cleaning of the instruments. Moreover, the estimates of these fluxes, provided by the NWP outputs suffer from a lot of systematic errors due to the weaknesses of models radiation and cloud parameterisations, to the lack of upper-air observations over the oceans, and model spin-up problems. Accurate information on sea ice is also crucial for a range of applications from operational NWP and numerical ocean models to climate research. Combining data
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 18 - osisaf_cdop2_gen_prd_3_7
from different satellites and sensors in a multi-sensor approach ensures an optimal use of available real-time satellite data. The OSI SAF products are an answer to several users requirements sources, collected and maintained in various contexts. Let’s mention in particular : - the requirements for Ocean observations relevant to post-EPS (Stammer et al,
AEG Ocean Topography and Ocean Imaging, January 2007), - the GHRSST Users Requirements for SST, - the GCOS requirements for reprocessed products. Note also that the 82nd EUMETSAT Council meeting approved as uncontroversial the Third Party Data Services under consideration and their associated priorities as presented in EUM/C/82/14/DOC/14 which includes : - Priority 1 assigned to ISS / Rapidscat (launched in 2014) - Priority 1 assigned to HY-2A / SCAT (launched in 2011) - Priority 2 assigned to HY-2B / SCAT (to be launched in 2016)
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 19 - osisaf_cdop2_gen_prd_3_7
3. Overview on the OSI SAF target production
The objective of the OSI SAF is the operational near real-time production, distribution and archiving of a coherent set of information characterising the ocean surface and the energy fluxes through it : sea-surface temperature fields and structures, radiative fluxes, wind vector and sea ice. The range of products areas has been set to take into account different domains and scales of applications : The Global Oceans, the Atlantic Ocean at low and mid latitude (including Westernmost part of Indian Ocean), The Atlantic/Arctic High latitudes, The Antarctic and the Nearest Atlantic and European seas. The OSI SAF will rely on the combined use of satellite data from different sources. Data from EUMETSAT programmes will be completed by information from other programmes as relevant, in particular USA ones : NOAA, GOES, DMSP, QuikSCAT and NPP. The OSI SAF shall provide users with products related to :
Sea Surface Temperature (underskin temperature), Sea Ice Temperature and Lake Surface Temperature
Surface radiative fluxes (Surface Short wave Irradiance (SSI) and Downward Long wave Irradiance (DLI)),
Sea Ice edge, concentration, type, emissivity and drift Near surface wind vector (at 10m height).
The products are either level 2 or 3, according to the following classification :
level 2 : retrieved geophysical products at the time and location of measurement with no complex compositing in space or time. This is the case for wind products and SST products at full satellite resolution.
level 3 : products mapped or averaged or analysed to standard geographic grids. This may include gap filling, but « missing data » gaps are acceptable. Products usually from one observation source only, although a composite product from(1) similar instruments on different satellites might legitimately be called level 3. This is the case for DLI and SSI radiative fluxes, sea ice products, and SST not at full satellite resolution
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 20 - osisaf_cdop2_gen_prd_3_7
4. Main applications of the OSI SAF products The OSI SAF is an answer to the common requirements of meteorology and oceanography for a comprehensive information on the ocean-atmosphere interface. These requirements come primarily from National Meteorological Services (NMSs), which are considered as the primary users of the OSI SAF, as well as oceanic and climate research agencies. These users should normally receive the data from the SAF in order to utilise these for manufacturing higher level products or scientific work. These users include :
NWP centres, for use and/or assimilation in their operational NWP systems, marine meteorological centres, for direct use for their marine forecast activities or related service activities (storm surge prediction, oil drift prediction, ship routing etc...),
ocean modelling centres, for use and/or assimilation in numerical ocean prediction systems,
polar research centres, to monitor sea surface conditions in polar regions, climate monitoring centres, for use and/or assimilation in coupled ocean/atmosphere numerical models, with possible application to seasonal prediction,
sea ice services. Other users can be found within the economic communities exercising their activities on or in the ocean :
government agencies, in charge of safety or economic planning, research, satellite data processing centres, fisheries and aquaculture, navigation, offshore industry, coastal engineering, defence
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 21 - osisaf_cdop2_gen_prd_3_7
5. General requirements
5.1 Capability requirements OSI-PRD-GEN-001 The OSI SAF products shall be generated from real-time or off-
line satellite data. OSI-PRD-GEN-002 When some of the input data are missing or corrupted,
production shall be performed as soon as the available input data make it possible.
5.2 Constraint requirements OSI-PRD-GEN-100 Operational OSI SAF products shall be available for distribution
within the specified time on a monthly basis in more than 95% of the cases where input satellite data are available with the nominal level of quality (on monthly basis). Nominal quality data are defined as input data that successfully pass all input data tests in the OSI SAF processing.
Note : End-to-end timeliness is defined from the observation time of the last satellite input data of a product to its availability at the users site via EUMETCast. OSI-PRD-GEN-101 Operational OSI SAF products accuracy should be better than
the value specified as threshold accuracy in the products tables when input satellite data are available with the nominal level of quality (on monthly basis).
5.3 Documentation and software requirements OSI-PRD-GEN-200 The OSI SAF shall maintain a record of all algorithms, software
and documentation developed during its whole life. OSI-PRD-GEN-201 Documentation shall include for each product (or family of
products) : a product user manual including algorithm and processing description,
A product validation Report An ATBD (Algorithm Theoretical Baseline Document)
5.4 Quality control requirements OSI-PRD-GEN-300 For each OSI SAF operational product, quality controls shall be
performed continuously and automatically.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 22 - osisaf_cdop2_gen_prd_3_7
OSI-PRD-GEN-301 The OSI SAF shall archive all products control reports.
5.5 Products format and access requirements OSI-PRD-GEN-400 The OSI SAF products shall be made available via the
dissemination means as specified in the corresponding tables of Chapter 6.
OSI-PRD-GEN-401 The OSI SAF products shall be made available in the formats as
specified in the corresponding tables of Chapter 6. Note : RMDCN, Internet and EumetCAST performance are out of OSI SAF responsibility OSI-PRD-GEN-402 The OSI SAF shall archive all distributed products during an
interim archive period when they are not yet migrated into EUMETSAT DATA CENTRE (EDC).
OSI-PRD-GEN-403 During the interim archive period, OSI SAF products shall be
accessible off-line through Internet over a minimum of one month backwards from the current date.
OSI-PRD-GEN-404 During the interim archive period, access to the archived
products is based on simple FTP servers accessible via Internet, with no invoicing, browsing or catalogue consultation capacity.
OSI-PRD-GEN-405 During the interim archive period, the OSI SAF Web site shall
provide users with practical information to get access to archived products
5.6 Products areas requirements
OSI-PRD-GEN-500 The OSI SAF product areas shall be as following :
• Global (GBL) : Global Oceans, • Global for the Sea Ice case : constituted of the Northern Hemisphere (NH,
north of 35°N) and the Southern Hemisphere ( SH, south of 50°S), • METEOSAT: 60S-60N, 60W-60E • GOES-E: 60S-60N, 15W-135W • Atlantic High Latitude (AHL) : Atlantic north of 50°N, • Northern High Latitude (NHL) : Poleward of 50°N • High Latitude (HL): Poleward of 50°N and 50°S • Northern Atlantic and Regional seas (NAR): seas watering EUMETSAT
member states including a large part of northern Atlantic
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 23 - osisaf_cdop2_gen_prd_3_7
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 24 - osisaf_cdop2_gen_prd_3_7
6. Products requirements 6.1 SST requirements OSI-PRD-PRO-1 The OSI SAF shall deliver the following SST products :
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mination Means
Format
Production Frequency
End-to-end time liness
Spatial Coverage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
OSI-201
Global METOP Sea Surface Temperature GBL SST
NRT Product
METOP / AVHRR
ECMWF outputs (temperature, humidity and aerosols profiles
Subskin temperature; multispectral algorithm
FTP server, EUMETCast, data centre
NetCDF, GRIB2
2 per day 6 h Global 0.05°
monthly bias : 1°c, Sdt Deviation : 1,5°c
monthly bias : 0,5°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
OSI-201-b
Global METOP Sea Surface Temperature GBL SST
NRT Product
METOP / AVHRR
ECMWF outputs (temperature, humidity and aerosols profiles
Subskin temperature; multispectral algorithm + use of NWP output
FTP server, EUMETCast, data centre
NetCDF, GRIB2
2 per day 6 h Global 0.05°
monthly bias : 1°c, Sdt Deviation : 1,5°c
monthly bias : 0,5°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
use of NWP output
OSI-202
North Atlantic Regional Sea Surface Temperature NAR SST
NRT Product
METOP / AVHRR, NPP then JPSS
ECMWF outputs (temperature, humidity and aerosols profiles
Subskin temperature; multispectral algorithm
FTP server, EUMETCast, data centre
NetCDF, GRIB2
4 per day 6 h
North Atlantic 2 km
monthly bias : 1°c, Sdt Deviation : 1,5°c
monthly bias : 0,5°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
OSI-202-b
North Atlantic Regional Sea Surface Temperature NAR SST
NRT Product
METOP / AVHRR, NPP then JPSS
ECMWF outputs (temperature, humidity and aerosols profiles
Subskin temperature; multispectral algorithm + use of NWP output
FTP server, EUMETCast, data centre
NetCDF, GRIB2
4 per day 6 h
North Atlantic 2 km
monthly bias : 1°c, Sdt Deviation : 1,5°c
monthly bias : 0,5°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
use of NWP output
OSI-203
Atlantic High Latitude Sea Surface Temperature AHL SST
NRT Product
AVHRR (NOAA, Metop)
HIRLAM outputs
Subskin temperature; multispectral algorithm
FTP server, EUMETCast, data centre
NetCDF, GRIB
2 per day 3h30
Atlantic north of 50N/ 5 km
monthly bias : 1°C, Sdt Deviation : 1,5°C
monthly bias : 0,5°C, Sdt Deviation : 0,8°C
monthly bias : 0,1°C, Sdt Deviation : 0,3°C
Comparison with buoy observations
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring.
OSI-203-a
Northern High Latitude Sea and Sea Ice Surface Temperature
NHL SST/IST
NRT Product
AVHRR (Metop)
ECMWF outputs
SST: subskin temperature. IST: skin temperature. Multispectral algorithms.
FTP server, EUMETCast, data centre
NetCDF, GRIB
2 per day 3h30
Poleward of 50N 5 km
SST bias: 1°C SST std: 1,5°C IST bias: 2.0 / 3.0°C IST std: 3.0 / 4.0°C (1)
SST bias: 0.5°C SST std: 0.8°C IST bias: 1.0 / 1.5°C IST std: 1.5 / 2.0°C (1)
SST bias: 0.1°C SST std: 0.3°C IST bias: 0.5 / 0.8°C IST std: 0.8 / 1.0°C (1)
SST: Comparison with buoy observations. IST: comp with IR radiometer and buoy obs, separately (1)
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring.
Monthly accuracies. Extend to full Northen Hemisphere. Include sea ice surface temperature and Sea Ice Edge (see OSI-203-a in 6.3 Sea Ice
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 25 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mination Means
Format
Production Frequency
End-to-end time liness
Spatial Coverage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
requirements)
OSI-203-b
Northern High Latitude Sea and Sea Ice Surface Temperature
NHL SST/IST
NRT Product
AVHRR (Metop) and VIIRS (NPP, JPSS)
ECMWF outputs
SST: subskin temperature. IST: skin temperature. Multispectral algorithms.
FTP server, EUMETCast, data centre
NetCDF, GRIB
2 per day 3h30
Poleward of 50N 5 km
SST bias: 1°C SST std: 1,5°C IST bias: 2.0 / 3.0°C IST std: 3.0 / 4.0°C (1)
SST bias: 0.5°C SST std: 0.8°C IST bias: 1.0 / 1.5°C IST std: 1.5 / 2.0°C (1)
SST bias: 0.1°C SST std: 0.3°C IST bias: 0.5 / 0.8°C IST std: 0.8 / 1.0°C (1)
SST: Comparison with buoy observations. IST: comp with IR radiometer and buoy obs, separately (1)
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring.
Monthly accuracies. Include VIIRS. JPSS : if data available in time before end of CDOP-2. (See also OSI-203-b in 6.3 Sea Ice requirements)
OSI-203-c
High Latitude Sea and Sea Ice Surface Temperature HL SST/IST
NRT Product
AVHRR (Metop) and VIIRS (NPP, JPSS)
ECMWF outputs
SST: subskin temperature. IST: skin temperature. Multispectral algorithms.
FTP server, EUMETCast, data centre
NetCDF, GRIB
2 per day 3h30
Poleward of 50N and 50S 5 km
SST bias: 1°C SST std: 1,5°C IST bias: 2.0 / 3.0°C IST std: 3.0 / 4.0°C (1)
SST bias: 0.5°C SST std: 0.8°C IST bias: 1.0 / 1.5°C IST std: 1.5 / 2.0°C (1)
SST bias: 0.1°C SST std: 0.3°C IST bias: 0.5 / 0.8°C IST std: 0.8 / 1.0°C (1)
SST: Comparison with buoy observations. IST: comp with IR radiometer and buoy obs, separately (1)
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring
Monthly accuracies. Extend to Southern hemisphere. Include use of RTTOV (See also OSI-203-c in 6.3 Sea Ice requirements) Operational implementation in CDOP3
OSI-204
Full resolution MetOp Sea Surface Temperature metagranules MGR SST
NRT Product
METOP / AVHRR
ECMWF outputs (temperature, humidity and aerosols profiles
Subskin temperature; multispectral algorithm
FTP server, EUMETCast, NAIAD NetCDF
480 per day (each 3min) 4 h Global 1 km
monthly bias : 1°c, Sdt Deviation : 1,5°c
monthly bias : 0,5°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
OSI-204-b
Full resolution MetOp Sea Surface Temperature metagranules MGR SST
NRT Product
METOP / AVHRR
ECMWF outputs (temperature, humidity and aerosols profiles
Subskin temperature; multispectral algorithm + use of NWP output
FTP server, EUMETCast, NAIAD NetCDF
480 per day (each 3min) 4 h Global 1 km
monthly bias : 1°c, Sdt Deviation : 1,5°c
monthly bias : 0,5°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
use of NWP output
OSI-205
High Latitude L2 Sea and Sea Ice Surface Temperature L2 SST/IST
NRT Product
AVHRR (Metop)
ECMWF outputs
SST: subskin temperature. IST: skin temperature. Multispectral algorithms.
FTP server, EUMETCast, data centre NetCDF
250 per day (each 3 min)
3h Poleward of 50N/50S 1 km
SST bias: 1.5°C SST std: 1.5°C IST bias: 2.5 / 4.5°C IST std: 3.0 / 4.0°C (1)
SST bias: 0.7°C SST std: 1.0°C IST bias: 1.5 / 3.5°C IST std: 2.0 / 3.0°C (1)
SST bias: 0.1°C SST std: 0.3°C IST bias: 0.5 / 0.8°C IST std: 0.8 / 1.0°C (1)
SST: Comparison with buoy observations. IST: comp with IR radiometer and buoy obs, separately (1)
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring.
Monthly accuracies. Include sea ice surface temperature
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 26 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mination Means
Format
Production Frequency
End-to-end time liness
Spatial Coverage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
OSI-205-b
High Latitude L2 Sea and Sea Ice Surface Temperature L2 SST/IST
NRT Product
AVHRR (Metop) and VIIRS (NPP, JPSS)
ECMWF outputs
SST: subskin temperature. IST: skin temperature. Multispectral algorithms.
FTP server, EUMETCast, data centre NetCDF
Metop250 per day (each 3 min)
3h Poleward of 50N/50S 1 km
SST bias: 1.5°C SST std: 1.5°C IST bias: 2.5 / 4.5°C IST std: 3.0 / 4.0°C (1)
SST bias: 0.7°C SST std: 1.0°C IST bias: 1.5 / 3.5°C IST std: 2.0 / 3.0°C (1)
SST bias: 0.1°C SST std: 0.3°C IST bias: 0.5 / 0.8°C IST std: 0.8 / 1.0°C (1)
SST: Comparison with buoy observations. IST: comp with IR radiometer and buoy obs, separately (1)
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring.
Monthly accuracies. Include VIIRS. JPSS : if data available in time before end of CDOP-2.
OSI-205-c
High Latitude L2 Sea and Sea Ice Surface Temperature L2 SST/IST
NRT Product
AVHRR (Metop) and VIIRS (NPP, JPSS)
ECMWF outputs
SST: subskin temperature. IST: skin temperature. Multispectral algorithms.
FTP server, EUMETCast, data centre NetCDF
Metop250 per day (each 3 min) 3h
Poleward of 50N/50S 1 km
SST bias: 1.5°C SST std: 1.5°C IST bias: 2.5 / 4.5°C IST std: 3.0 / 4.0°C (1)
SST bias: 0.7°C SST std: 1.0°C IST bias: 1.5 / 3.5°C IST std: 2.0 / 3.0°C (1)
SST bias: 0.1°C SST std: 0.3°C IST bias: 0.5 / 0.8°C IST std: 0.8 / 1.0°C (1)
SST: Comparison with buoy observations. IST: comp with IR radiometer and buoy obs, separately (1)
* Operational Met Services * Operational analyses and ocean models * Research or Environmental monitoring.
Monthly accuracies. Include use of RTTOV Operational implementation in CDOP3
OSI-206
METEOSAT Sea Surface Temperature MET SST
NRT Product MSG / SEVIRI
ECMWF outputs (temperature, humidity and aerosols profiles)
Subskin temperature; multispectral algorithms + bias correction
FTP server, EUMETCast, data centre
NetCDF, GRIB2
24 per day 3 h
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly bias : 1°c, Sdt Deviation : 1,5°c
Bias : 0,5°c, sdt Deviation : 1°c
monthly bias : 0,1°c, Sdt Deviation : 0,5°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
OSI-206-b
METEOSAT Sea Surface Temperature MET SST
NRT Product MTG / FCI
ECMWF outputs (temperature, humidity and aerosols profiles)
Subskin temperature; multispectral algorithms + bias correction
FTP server, EUMETCast, data centre NetCDF
24 per day
1 h 30
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly bias : 1°c, Sdt Deviation : 1,5°c
Bias : 0,5°c, sdt Deviation : 1°c
monthly bias : 0,1°c, Sdt Deviation : 0,5°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
OSI-207
GOES-E Sea Surface Temperature
GOES-E SST
NRT Product
GOES-E imager
ECMWF outputs (temperature, humidity and aerosols profiles)
multispectral algorithms + bias correction
FTP server, EUMETCast, data centre
NetCDF, GRIB2
24 per day 3 h
West Atlantic East Pacific 60N-60S 135W-15W
0.05° Lat-Lon
monthly bias : 1°c, Sdt Deviation : 1,5°c
Bias : 0,5°c, sdt Deviation : 1°c
monthly bias : 0,1°c, Sdt Deviation : 0,5°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries.
OSI-207-b
GOES-E Sea Surface Temperature
GOES-E SST
NRT Product GOES-R ABI
ECMWF outputs (temperature, humidity and aerosols profiles)
Subskin temperature; multispectral algorithms + bias correction
FTP server, EUMETCast, data centre
NetCDF, GRIB2 1 h 3 h
West Atlantic East Pacific 60N-60S 135W-15W
0.05° Lat-Lon
monthly bias : 1°c, Sdt Deviation : 1,5°c
Bias : 0,5°c, sdt Deviation : 1°c
monthly bias : 0,1°c, Sdt Deviation : 0,5°c
routine comparison with drifting buoy measurements
atmosphere and ocean models; oceanography and fisheries. Op. in CDOP3
OSI-208 IASI SST IASI SST NRT Product Metop IASI
L2P core IASI SST produced by CAF IASI L2 package
FTP server, EUMETCast, data centre NetCDF
480 per day (each 3min) 4 h Global
12 to 40 km
monthly bias : 1°c, Sdt Deviation : 1,5°c
Bias : 0,5°c, sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements
atmosphere and ocean models.
OSI-250
Reprocessed MSG/SEVIRI SST
REPMSGSST Data record MSG SEVIRI
ECMWF outputs (temperature, humidity and
Subskin temperature; multispectral algorithm + use of NWP output. Time period : 2004-
data centre, Ifremer NetCDF N.A.
Off line
East Atlantic, West Indian: 60N-60S
0.05° Lat-Lon
monthly bias : 1°c, Sdt Deviation : 1°c
monthly bias : 0,3°c, Sdt Deviation : 0,8°c
monthly bias : 0,1°c, Sdt Deviation : 0,3°c
routine comparison with drifting buoy measurements climate.
Temporal sampling : 1 hour
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 27 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mination Means
Format
Production Frequency
End-to-end time liness
Spatial Coverage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
aerosols profiles)
2012 60W-60E
(1) The IST accuracy requirements are split in two: the first is for validation against in situ IR radiometers, the second for in situ buoy data. The reason for this is discussed in the ATBD for OSI-205. OSI-PRD-PRO-2 The OSI SAF shall produce SST values in cloud clear areas only. In particular, no interpolation or analysis method shall be
used to estimate SST in cloudy areas. OSI-PRD-PRO-3 Each grid node of a SST product shall include the SST value, the representative time of the SST value and the confidence
level, defined in compliance with the GHRSST-PP recommendations. OSI-PRD-PRO-4 SST values shall be continuously quality controlled by comparison with night-time buoy measurements gathered in match-up
data bases. OSI-PRD-PRO-5 The SST match-up data base shall be available to interested users on request. OSI-PRD-PRO-6 The SST products shall include Surface Temperature over selected lakes as derived from the standard SST algorithm, with
no commitment on the accuracy and validation.
6.2 Radiative Fluxes (DLI and SSI) requirements OSI-PRD-PRO-100 The OSI SAF shall deliver the following Radiative Fluxes products :
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 28 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Opera tional Input Data
Characte ristics and Methods
Disse mina tion Means Format
Production Frequency
End-to-end time liness
Spatial Coverage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
OSI-301
AHL Downward Longwave Irradiance AHL DLI
NRT Product
AVHRR (NOAA, Metop)
HIRLAM outputs
Bulk parameterization
FTP server, EUMETCast, data centre
GRIB NetCDF HDF5
1 per day 3 h 30
Atlantic North of 50N 5 km
monthly relative bias : 10%, monthly relative Std. Deviation :20%
monthly relative bias : 5%, monthly relative Std. Deviation :10%
monthly relative bias : 0%, monthly relative Std. Deviation : 3%
Comparison with Pyrgeometers measurement
NWP, Ocean and biological modeling at operational and research centers.
OSI-301-b
AHL Downward Longwave Irradiance AHL DLI
NRT Product
AVHRR, VIIRS (NPP, JPSS)
HIRLAM outputs
Bulk parameterization
FTP server, EUMETCast, data centre
GRIB NetCDF HDF5
1 per day 3 h 30
Atlantic North of 50N 5 km
monthly relative bias : 10%, monthly relative Std. Deviation :20%
monthly relative bias : 5%, monthly relative Std. Deviation :10%
monthly relative bias : 0%, monthly relative Std. Deviation : 3%
Comparison with Pyrgeometers measurement
NWP, Ocean and biological modeling at operational and research centers.
Include VIIRS and improved over sea ice
OSI-302
AHL Surface Solar Irradiance AHL SSI
NRT Product
AVHRR (NOAA, Metop)
HIRLAM outputs
Bulk parameterization
FTP server, EUMETCast, data centre
GRIB NetCDF HDF5
1 per day 3 h 30
Atlantic North of 50N 5 km
monthly relative bias : 20%, monthly relative Std. Deviation : 50%
monthly relative bias : 10%, monthly relative Std. Deviation :30%
monthly relative bias : 0%, monthly relative Std. Deviation :10%
Comparison with Pyranometers measurement
NWP, Ocean and biological modeling at operational and research centers.
OSI-302-b
AHL Surface Solar Irradiance AHL SSI
NRT Product
AVHRR, VIIRS (NPP, JPSS)
HIRLAM outputs
Bulk parameterization
FTP server, EUMETCast, data centre
GRIB NetCDF HDF5
1 per day 3 h 30
Atlantic North of 50N 5 km
monthly relative bias : 20%, monthly relative Std. Deviation : 50%
monthly relative bias : 10%, monthly relative Std. Deviation :30%
monthly relative bias : 0%, monthly relative Std. Deviation :10%
Comparison with Pyranometers measurement
NWP, Ocean and biological modeling at operational and research centers.
Include VIIRS and improved over sea ice
OSI-303
METEOSAT Downward Longwave Irradiance MET DLI
NRT Product MSG / SEVIRI
ECMWF outputs (temperature, humidity and aerosols profiles)
bulk parametrization.
FTP server, EUMETCast, data centre
NetCDF, GRIB2
24 per day + 1 per day 2 h
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly relative bias : 10%, monthly relative Std. Deviation :20%
monthly (TBC) relative bias : 5%, monthly relative Std. Deviation :10%
monthly relative bias : 0%, monthly relative Std. Deviation : 3%
routine comparison with pyrgeometer measurements ocean atmosphere studies.
OSI-303-b
METEOSAT Downward Longwave Irradiance MET DLI
NRT Product MTG / FCI
ECMWF outputs (temperature, humidity and aerosols profiles)
bulk parametrization.
FTP server, EUMETCast, data centre NetCDF
24 per day
1 h 30
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly relative bias : 10%, monthly relative Std. Deviation :20%
monthly (TBC) relative bias : 5%, monthly relative Std. Deviation :10%
monthly relative bias : 0%, monthly relative Std. Deviation : 3%
routine comparison with pyrgeometer measurements ocean atmosphere studies.
1 per day
3 h
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly relative bias : 10%, monthly relative Std. Deviation :10%
monthly (TBC) relative bias : 5%, monthly relative Std. Deviation :5%
monthly relative bias : 0%, monthly relative Std. Deviation : 2%
routine comparison with pyrgeometer measurements ocean atmosphere studies.
OSI-304
METEOSAT Surface Solar Irradiance MET SSI
NRT Product MSG / SEVIRI NA physical method
FTP server, EUMETCast, data centre
NetCDF, GRIB2
24 per day + 1 per day 2 h
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly relative bias : 20%, monthly relative Std. Deviation : 50%
monthly (TBC) relative bias : 10%, monthly relative Std. Deviation :30%
monthly relative bias : 0%, monthly relative Std. Deviation :10%
routine comparison with pyranometer measurements ocean atmosphere studies.
OSI-304-b
METEOSAT Surface
Solar Irradiance
MET SSI NRT Product MTG / FCI NA physical method
FTP server, EUMETCast, data centre
NetCDF 24 per day
1 h 30
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly relative bias : 20%, monthly relative Std. Deviation : 50%
monthly (TBC) relative bias : 10%, monthly relative Std. Deviation :30%
monthly relative bias : 0%, monthly relative Std. Deviation :10%
routine comparison with pyranometer measurements ocean atmosphere studies.
1 per day
3 h
East Atlantic, West Indian: 60N-60S 60W-60E
0.05° Lat-Lon
monthly relative bias : 20%, monthly relative Std. Deviation :
monthly (TBC) relative bias : 10%, monthly relative Std. Deviation :15%
monthly relative bias : 0%, monthly relative Std. Deviation :5%
routine comparison with pyranometer measurements ocean atmosphere studies.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 29 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Opera tional Input Data
Characte ristics and Methods
Disse mina tion Means Format
Production Frequency
End-to-end time liness
Spatial Coverage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
25%
OSI-305
GOES-E Downward Longwave Irradiance
GOES-E DLI
NRT Product GOES-E imager
ECMWF outputs (temperature, humidity and aerosols profiles)
bulk parametrization.
FTP server, EUMETCast, data centre
NetCDF, GRIB2
24 per day + 1 per day 2 h
West Atlantic East Pacific 60N-60S 135W-15W
0.05° Lat-Lon
monthly relative bias : 10%, monthly relative Std. Deviation :20%
monthly (TBC) relative bias : 5%, monthly relative Std. Deviation :10%
monthly relative bias : 0%, monthly relative Std. Deviation : 3%
routine comparison with pyrgeometer measurements ocean atmosphere studies.
OSI-305-b
GOES-E Downward Longwave Irradiance
GOES-E DLI
NRT Product GOES-R ABI
ECMWF outputs (temperature, humidity and aerosols profiles)
bulk parametrization.
FTP server, EUMETCast, data centre
NetCDF, GRIB2
1 h, 24 h 2 h
West Atlantic East Pacific 60N-60S 135W-15W
0.05° Lat-Lon
monthly relative bias : 10%, monthly relative Std. Deviation :20%
monthly (TBC) relative bias : 5%, monthly relative Std. Deviation :10%
monthly relative bias : 0%, monthly relative Std. Deviation : 3%
routine comparison with pyrgeometer measurements ocean atmosphere studies. Op. in CDOP3
OSI-306
GOES-E Surface Solar Irradiance
GOES-E SSI
NRT Product GOES-E imager NA physical method
FTP server, EUMETCast, data centre
NetCDF, GRIB2
24 per day + 1 per day 2 h
West Atlantic East Pacific 60N-60S 135W-15W
0.05° Lat-Lon
monthly relative bias : 20%, monthly relative Std. Deviation : 50%
monthly (TBC) relative bias : 10%, monthly relative Std. Deviation :30%
monthly relative bias : 0%, monthly relative Std. Deviation :10%
routine comparison with pyranometer measurements ocean atmosphere studies.
OSI-306-b
GOES-E Surface Solar Irradiance
GOES-E SSI
NRT Product GOES-R ABI NA physical method
FTP server, EUMETCast, data centre
NetCDF, GRIB2
1 h, 24 h 2 h
West Atlantic East Pacific 60N-60S 135W-15W
0.05° Lat-Lon
monthly relative bias : 20%, monthly relative Std. Deviation : 50%
monthly (TBC) relative bias : 10%, monthly relative Std. Deviation :30%
monthly relative bias : 0%, monthly relative Std. Deviation :10%
routine comparison with pyranometer measurements ocean atmosphere studies. Op. in CDOP3
OSI-PRD-PRO-101 Each grid node of a SSI and DLI product shall include the flux value and the confidence level of the flux value labelled on a
five level scale: 5 = “excellent”, 4= “good”, 3=”acceptable”, 2=“bad”, 1=“erroneous”,and 0=“unprocessed. OSI-PRD-PRO-102 hourly SSI products quality shall be continuously quality controlled against a set of pyranometers measurement stations
selected over land and gathered in a match-up data base. OSI-PRD-PRO-103 hourly DLI products quality shall be continuously quality controlled against a set of pyrgeometer measurement stations
selected over land and gathered in match-up data base. OSI-PRD-PRO-104 The DLI and SSI match-up data bases shall be available to interested users on request. OSI-PRD-PRO-105 GOES-E and MET satellite-derived SSI and DLI inter-comparison shall be made in overlapping areas.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 30 - osisaf_cdop2_gen_prd_3_7
6.3 Sea Ice requirements
OSI-PRD-PRO-200 The OSI SAF shall deliver the following Sea Ice products :
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 31 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mina tion Means
Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
(2)
Target Accuracy
(2)
Optimal Accuracy
(2)
Verification/Validation Methods
Applications and main Users
Comments
OSI-401
Global Sea Ice Concentration GBL SICO
NRT product
SSM/I,
ECMWF outputs
Daily averaged fractional ice cover in percentage.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10km 20 %
(6)
10% for NH-product. 15% for SH-product (6)
10%(6)
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-401-a
Global Sea Ice Concentration GBL SICO
NRT product SSMIS
ECMWF outputs
Daily averaged fractional ice cover in percentage.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10km 20 %
(6)
10% for NH-product. 15% for SH-product (6)
10%(6)
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-401-b
Global Sea Ice Concentration GBL SICO
NRT product
SSMIS
ECMWF outputs
Daily averaged fractional ice cover in percentage. Includes uncertainty estimates.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10km 20 %
(6)
10% for NH-product. 15% for SH-product (6)
10%(6)
Comparison with high resolution manual ice charts : the performance shall be valid for the total range of ice percentage (not limited to “ice” (100% ice) and “water” (0 % ice) conditions) NWP and Ocean/Ice models,
operational Met and Sea Ice services.
Includes the use of DMSP-F18
OSI-402 Global Sea Ice Edge GBL SIED
NRT product
SSM/I, ASCAT
ECMWF outputs
Discrimination Open ice/Closed ice/No ice. Multisensor analysis, daily average.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
30 km, distance to ice edge (yearly average)
20 km (yearly average)
10 km (yearly average)
Comparison with high resolution manual ice charts
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-402-a Global Sea Ice Edge GBL SIED
NRT product
SSMIS, ASCAT
ECMWF outputs
Discrimination Open ice/Closed ice/No ice. Multisensor analysis, daily average.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
30 km, distance to ice edge (yearly average)
20 km (yearly average)
10 km (yearly average)
Comparison with high resolution manual ice charts
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-402-b Global Sea Ice Edge GBL SIED
NRT product
SSMIS, ASCAT
ECMWF outputs
Discrimination Open ice/Closed ice/No ice. Multisensor analysis, daily average. Risk mitigation against sensor degradation.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
30 km, distance to ice edge (yearly average)
20 km (yearly average)
10 km (yearly average)
Comparison with high resolution manual ice charts
NWP and Ocean/Ice models, operational Met and Sea Ice services.
Dynamical algorithm to improve transitions between seasons
OSI-402-c Global Sea Ice Edge GBL SIED
NRT product
SSMIS, ASCAT, AMSR-2
ECMWF outputs
Discrimination Open ice/Closed ice/No ice. Multisensor analysis, daily average. Risk mitigation against sensor degradation.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
NH : 30 km, distance to ice edge (yearly average) SH : 70 km, distance to ice edge (yearly average)
NH : 20 km (yearly average) SH : 45 km (yearly average)
10 km (yearly average)
Comparison with high resolution manual ice charts
NWP and Ocean/Ice models, operational Met and Sea Ice services.
+AMSR-2, ASCAT on Metop-B and DMSP-F18
OSI-403 Global Sea Ice Type GBL SITY
NRT product
SSM/I, ASCAT
ECMWF outputs
Discrimination First year, Multi year. Multisensor analysis, daily average.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
200000km2 monthly std.dev. in difference from running mean.
100000km2 monthly std.dev. in difference from running mean.
50000km2 monthly std.dev. in difference from running mean.
Compare NH mulit-year area with 11-days running mean. (1)
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-403-a Global Sea Ice Type GBL SITY
NRT product
SSMIS, ASCAT
ECMWF outputs
Discrimination First year, Multi year. Multisensor analysis, daily average.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
200000km2 monthly std.dev. in difference from running mean.
100000km2 monthly std.dev. in difference from running mean.
50000km2 monthly std.dev. in difference from running mean.
Compare NH mulit-year area with 11-days running mean. (1)
NWP and Ocean/Ice models, operational Met and Sea Ice services.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 32 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mina tion Means
Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
(2)
Target Accuracy
(2)
Optimal Accuracy
(2)
Verification/Validation Methods
Applications and main Users
Comments
OSI-403-b Global Sea Ice Type GBL SITY
NRT product
SSMIS, ASCAT
ECMWF outputs
Discrimination First year, Multi year. Multisensor analysis, daily average. Risk mitigation against sensor degradation.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
200000km2 monthly std.dev. in difference from running mean.
100000km2 monthly std.dev. in difference from running mean.
50000km2 monthly std.dev. in difference from running mean.
Compare NH mulit-year area with 11-days running mean. (1)
NWP and Ocean/Ice models, operational Met and Sea Ice services.
Dynamical algorithm to improve transitions between seasons
OSI-403-c Global Sea Ice Type GBL SITY
NRT product
SSMIS, ASCAT, AMSR-2
ECMWF outputs
Discrimination First year, Multi year. Multisensor analysis, daily average. Risk mitigation against sensor degradation.
EUMETCast, FTP, EDC
GRIB NetCDF HDF5
1 per day 5 h Global 10 km
200000km2 monthly std.dev. in difference from running mean.
100000km2 monthly std.dev. in difference from running mean.
50000km2 monthly std.dev. in difference from running mean.
Compare NH mulit-year area with 11-days running mean. (1)
NWP and Ocean/Ice models, operational Met and Sea Ice services.
+AMSR-2, ASCAT on Metop-B and DMSP-F18
OSI-404
Global Sea Ice Emissivity GBL SIEM
NRT product SSMIS None
Sea ice emissivity at 50GHz, daily average. Simulated with measured coefficients.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 5 h Global 10 km
NH 15%, SH 20%
(6)
NH 10%, SH 15%
(6)
NH 2%, SH 5%
(6)
Compare with RTM simulations using NWP
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-404-a
Global Sea Ice Emissivity GBL SIEM
NRT product SSMIS, None
Sea ice emissivity at 50GHz, daily average. Simulated with measured coefficients Including uncertainties.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 5 h Global 10 km
NH 15%, SH 20%
(6)
NH 10%, SH 15%
(6)
NH 2%, SH 5%
(6)
Compare with RTM simulations using NWP
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-405
Low Resolution Sea Ice Drift
GBL LR SIDR
NRT product
SSM/I, ASCAT,
ECMWF outputs
Single and multi sensor analysis. Displacement after 48 hours in km.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 6 h Global 62.5 km
10 km yearly std deviation on both x and y components after 48 hours displacement
5 km yearly std deviation on both x and y components after 48 hours displacement
2 km yearly std deviation on both x and y components after 48 hours displacement
Collocation with buoys
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-405-a
Low Resolution Sea Ice Drift
GBL LR SIDR
NRT product
SSMIS, ASCAT,
ECMWF outputs
Single and multi sensor analysis. Displacement after 48 hours in km.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 6 h Global 62.5 km
10 km yearly std deviation on both x and y components after 48 hours displacement
5 km yearly std deviation on both x and y components after 48 hours displacement
2 km yearly std deviation on both x and y components after 48 hours displacement
Collocation with buoys
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-405-b
Low Resolution Sea Ice Drift
GBL LR SIDR
NRT product
SSMIS, ASCAT, AMSR-2
ECMWF outputs
Single and multi sensor analysis. Displacement after 48 hours in km.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 6 h Global 62.5 km
10 km yearly std deviation on both x and y components after 48 hours displacement
5 km yearly std deviation on both x and y components after 48 hours displacement
2 km yearly std deviation on both x and y components after 48 hours displacement
Collocation with buoys
NWP and Ocean/Ice models, operational Met and Sea Ice services.
OSI-405-c
Low Resolution Sea Ice Drift
GBL LR SIDR
NRT product
SSMIS, ASCAT, AMSR-2
ECMWF outputs
Single and multi sensor analysis. Displacement after 48 hours in km. Including uncertainties.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 6 h Global 62.5 km
10 km yearly std deviation on both x and y components after 48 hours displacement
5 km yearly std deviation on both x and y components after 48 hours displacement
2 km yearly std deviation on both x and y components after 48 hours displacement
Collocation with buoys
NWP and Ocean/Ice models, operational Met and Sea Ice services.
Introducing uncertainties
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 33 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mina tion Means
Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
(2)
Target Accuracy
(2)
Optimal Accuracy
(2)
Verification/Validation Methods
Applications and main Users
Comments
OSI-203-a (corresponding to OSI-406 requirement)
(8)
Regional Sea Ice Edge REG SIED
NRT Product AVHRR
ECMWF outputs
Probabilities of open water and sea ice. Single sensor analysis.
EUMETCast, FTP, EDC
NetCDF, GRIB
2 per day 3 h 30
l Poleward of 50N 5 km
PoD: 0.65 FAR: 0.40
PoD: 0.80 FAR: 0.20
PoD: 0.90 FAR: 0.10
Comparison with high resolution manual ice charts Regional models and services.
This product will be provided together with NHL SST/IST (see OSI-203-a in 6.1 SST requirements)
OSI-203-b (corresponding to OSI-406-a requirement)
(8)
Poleward of 50N
OSI-203-c (corresponding to OSI-406-a requirement)
(8)
Regional Sea Ice Edge REG SIED
NRT Product AVHRR, VIIRS
ECMWF outputs
Probabilities of open water and sea ice. Multisensor sensor analysis
EUMETCast, FTP, EDC
NetCDF,GRIB
2 per day 3 h 30
Poleward of 50N and 50S 5 km
PoD: 0.65 FAR: 0.40
PoD: 0.80 FAR: 0.20
PoD: 0.90 FAR: 0.10
Comparison with high resolution manual ice charts Regional models and services.
This product will be provided together with NHL SST/IST (see OSI-203-b and OSI-203-c in 6.1 SST requirements)
OSI-407
Medium Resolution Sea Ice Drift
NH MR SIDR
NRT product AVHRR
Single sensor analysis.Displacement after 24 hours in km.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 6 h
Northern Hemisphere 20 km
5 km yearly std deviation after 24 hours displacement
2 km yearly std deviation after 24 hours displacement
1 km yearly std deviation after 24 hours displacement
Collocation with buoys
Ocean/Ice and NWP models, operational Met and Sea Ice services.
OSI-407-a
Medium Resolution Sea Ice Drift
NH MR SIDR
NRT product AVHRR, VIIRS
Single sensor analysis.Displacement after 24 hours in km.
EUMETCast, FTP, EDC
NetCDF (GRIB if requested)
1 per day 6 h
Northern Hemisphere 20 km
5 km yearly std deviation after 24 hours displacement
2 km yearly std deviation after 24 hours displacement
1 km yearly std deviation after 24 hours displacement
Collocation with buoys
Ocean/Ice and NWP models, operational Met and Sea Ice services.
OSI-408
Global AMSR Sea Ice Concentration
GBL AMSR SICO
NRT product AMSR-2
ECMWF outputs
Daily averaged fractional ice cover in percentage
EUMETCast, FTP, EDC NetCDF
1 per day 5 h Global 10km 20 %
(6)
10% for NH-product. 15% for SH-product (6)
10%(6)
Ocean/Ice and NWP models, operational Met and Sea Ice services.
OSI-409
Global reprocessed Sea Ice Concentration
GBL REP SICO Data record
SMMR from NSIDC, SSM/I from RSS
ECMWF outputs
Daily averaged fractional ice cover in percentage. Includes per-grid cell uncertainties. FTP, EDC NetCDF
1 per day Offline Global
10km and 12.5km
(5)20 %
(6)
10% for NH-product. 15% for SH-product (6)
10%(6)
Climate models, NWP and Ocean/Ice hindcast models, environmental agencies.
Time period 1978-2007. Will be replaced by OSI-450
OSI-409-a
Global reprocessed Sea Ice Concentration
GBL REP SICO Data record
SSM/I from NOAA through UK Met Office and ECMWF, SSMIS from EUMETCast
ECMWF outputs
Daily averaged fractional ice cover in percentage. Fully consistent with OSI-409, to ensure homogeneity. Includes per-grid cell uncertainties. FTP, EDC NetCDF
1 per day Offline Global
10km and 12.5km
(5)20 %
(6)
10% for NH-product. 15% for SH-product (6)
10%(6)
Climate models, NWP and Ocean/Ice hindcast models, environmental agencies.
Time period 2009-2014. To cover the gap between OSI-409 and OSI-430.
OSI-430
Global reprocessed Sea Ice Concentration Updates
GBL REPU SICO
Off line product
SSMIS from EUMETCast
ECMWF outputs
Daily averaged fractional ice cover in percentage. Fully consistent with with OSI-409, to ensure homogeneity. Includes per-grid cell uncertainties. FTP, EDC NetCDF
1 per day
1 month Global
10km and 12.5km
(5)20 % (yearly average)
10% for NH-product. 15% for SH-product (6)
10%(6)
Comparison with high spatial resolution manual ice charts (available between twice a week and once a week) : the performance shall be valid for the total range of ice percentage (not limited to “ice” (100% ice) and “water” (0 % ice) conditions)
Climate models, NWP and Ocean/Ice hindcast models, environmental agencies
Starting continuous updates
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 34 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Operational Input Data
Characteristics and Methods
Disse mina tion Means
Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
(2)
Target Accuracy
(2)
Optimal Accuracy
(2)
Verification/Validation Methods
Applications and main Users
Comments
OSI-450(3)
Global Sea Ice Concentration Climate Data Record
GBL SICO CDR Data record
SMMR, SSM/I and SSMIS from CM SAF
ECMWF outputs
Daily averaged fractional ice cover in percentage. Includes per-grid cell uncertainties. FTP, EDC NetCDF
1 per day Offline Global 25km
(5,7)15 %
(6) 8%
(6) 5%
6)
Comparison with high spatial resolution manual ice charts (available between twice a week and once a week) : the performance shall be validated for only the “ice” and “water” cases, separately.
Climate models, NWP and Ocean/Ice hindcast models, environmental agencies
Time period Jan 1979-Dec 2015.Will replace OSI-409 and OSI-409-a
(1) Monitoring/validation of ice type : There are no routinely updated sea ice type in situ measurements available, so monitoring of the sea ice type product is done by monitoring the daily variation in area extent of the multi-year sea ice type fraction through the season. This daily area extent is compared against a 11-days running mean, and should not vary too much (OSI-403, OSI-403a and OSI-403b products). (2) Accuracy of the different sea ice products upgrades : The target accuracy requirement of the sea ice products have usually not been changed for upgrades to the products, which is the case for other OSI SAF products also. But we do not introduce an algorithm update if the validation do not show equal or better performance. Still, some upgrades are not related to algorithm changes, but introduction of new sensors that improve resolution or coverage (all sea ice products). (3) Interaction with ESA CCI projects : the Project Teams at MET Norway and DMI were engaged from December 2011 to December 2014 in a project with ESA under the Climate Change Initiative program. One aim of the project was to develop a time-series of sea ice concentration ECV, which is very similar in scope to the datasets developed in the OSISAF CDOP-1 (OSI-409) and CDOP-2 (OSI-450). It is thus natural for the Project Team to seek best synergies between the two projects, especially in terms of re-use of processing software. A specific acknowledgement that the OSISAF contributed with re-use of (part of) its processing software will be carried into the ESA CCI product. The ESA CCI Sea Ice project enters in its 2nd phase (Jan 2015 to Dec 2017) with active participation of Project Teams at MET Norway and DMI. The requirements of OSI-450 are updated to document that contribution from the SICCI projects allows to aim for a better result. The SICCI2 project will use the same processing software to generate a dataset from AMSR-E and AMSR2 (2002-2015, with data gaps), which is not a CDOP2 product.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 35 - osisaf_cdop2_gen_prd_3_7
(5) Spatial sampling : The products are provided in two different projections/grids. Polar stereographic at 10km and Lambert azimuthal at 12.5km. Both are provided to be consistent with NSIDC products. As NSIDC introduces newer grids (EASE2), so does CDOP2 for selected product. (6) Sea Ice concentration and emissivity accuracy : these numbers are standard deviation of sea ice concentration/emissivity, averaged over one year. (7) Spatial sampling of OSI-450: The sensors entering OSI-450 do not justify the daily sea ice concentration fields to be presented at 10 or 12.5 km sampling without dedicated additional work on the processing algorithms and/or uncertainties. An EASE2 grid with 25 km resolution is a more sensible spatial sampling for OSI-450 (OSI-450 will go back to 1979 only, justified by the late start of ERA-Interim data). (8) Validation of OSI-203 series (corresponding to OSI-406 series requirement): This validation will be computed and analysed monthly, and reported as a part of the OSI-203 validation. OSI-PRD-PRO-201 Each grid node of a sea ice field shall contain the sea ice value and a confidence or uncertainty parameter. OSI-PRD-PRO-202 The following quality control shall be implemented on sea ice products:
- monitor confidence parameters, - for sea ice concentration and ice edge compare ice estimates with ice analyses from regional ice centres,
- for northern hemisphere ice type compare multi-year ice area estimates with running mean for consistency checking, - for sea ice drift compare drift estimate with drift of buoys or other installations on the ice reporting GPS position. OSI-PRD-PRO-203 The low resolution ice drift product shall not be delivered during the summer season. The duration of the summer interruption
can be different for each sensor, depending on the sensors sensitivity to atmospheric noise and surface melting. OSI-PRD-PRO-204 The medium resolution ice drift product shall only deliver values in cloud free conditions.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 36 - osisaf_cdop2_gen_prd_3_7
OSI-PRD-PRO-205 The OSI SAF shall reprocess the time series of SMMR, SSM/I and SSMIS data back to 1978 to expand the time series of global sea ice products.
OSI-PRD-PRO-206 The OSI SAF shall test new methods for ensuring a climate consistent data set. OSI-PRD-PRO-207 The OSI SAF shall improve the coverage of the existing sea ice concentration, edge and type products by adding
interpolation in the coastal zone and the area close to the pole where there is no satellite data coverage. OSI-PRD-PRO-208 (removed) OSI-PRD-PRO-209 The Sea Ice Regional Edge product (OSI-406) shall be only valid when the sun is above 5° elevation. OSI-PRD-PRO-210 The Sea Ice Regional Edge product (OSI-406) shall be monitored on PoD (Probability of Detection) and FAR (False Alarm
Ratio), which definition is given in the OSI-406 validation report.
6.4 Wind requirements
OSI-PRD-PRO-300 The OSI SAF shall deliver the following Wind products :
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 37 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Opera tional Input Data
Characte ristics and Methods
Disse mina tion Means Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
OSI-102
ASCAT 25 km Winds ASCAT25 NRT Product
ASCAT on Metop A
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, GTS, data centre, NAIAD
BUFR, NetCDF
Continuous 2 h 45 Global 25 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services (including assimilation in at least 8 NWP models, nowcasting) * Operational analyses and ocean models* Research or Environmental monitoring.
OSI-102-b
ASCAT 25 km Winds ASCAT25 NRT Product
ASCAT on Metop B
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, GTS, data centre, NAIAD
BUFR, NetCDF
Continuous 2 h 45 Global 25 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services (including assimilation in at least 8 NWP models, nowcasting) * Operational analyses and ocean models* Research or Environmental monitoring.
OSI-103
ASCAT 12.5 km Winds ASCAT12 NRT Product
ASCAT on Metop A
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF
Continuous 2 h 45 Global 12.5 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services (including assimilation in at least 8 NWP models, nowcasting) * Operational analyses and ocean models* Research or Environmental monitoring. Replaced by OSI-104
OSI-104
ASCAT coastal Winds ASCAT12+ NRT Product
ASCAT on Metop A
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, GTS, data centre
BUFR, NetCDF
Continuous 2 h 45 Global 12.5 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services (including assimilation in at least 8 NWP models, nowcasting) * Operational analyses and ocean models* Research or Environmental monitoring. replace OSI-103
OSI-104-b
ASCAT coastal Winds ASCAT12+ NRT Product
ASCAT on Metop B
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, GTS, data centre
BUFR, NetCDF
Continuous 2 h 45 Global 12.5 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services (including assimilation in at least 8 NWP models, nowcasting) * Operational analyses and ocean models* Research or Environmental monitoring. . replace OSI-103
OSI-105
Oceansat-2 50 km winds OSCAT50
Archive Product
OSCAT on Oceansat-2 (India)
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
FTP server, data centre
BUFR, NetCDF
Continuous 3 h Global 50 km N/A
Better than 2 m/s inwind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
irrecoverable instrument failure on 20 February 2014
OSI-106
CFOSAT winds TBD NRT Product
Scatterometer on CFOSAT (France/China)
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF TBD Global TBD N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
Expected lauch date is now 2018 (Op. in CDOP3)
OSI-107
HY-2 winds TBD NRT Product
Scatterometer on HY-2 (China)
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF
Continuous TBD Global TBD N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed N/A
Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
Availability of data is not yet established. Waiting for HY-2B. (Op. in CDOP3)
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 38 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Opera tional Input Data
Characte ristics and Methods
Disse mina tion Means Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
OSI-108
Meteor-M winds TBD NRT Product
Scatterometer on Hydromet (Russia)
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF TBD Global TBD N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
Availability of data is not yet established. Launch is postponed until 2018. (Op. in CDOP3)
OSI-109-a (8)
EUMETCast FTP server 2h
OSI-109-c (8)
Rapid Scat 25km winds
RSCAT25 NRT Product RapidScat Scatterometer on ISS
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors EUMETCast
FTP server, data centre
BUFR, NetCDF
Continuous
3h
Between 56N and 56S
25 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed
N/A Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
OSI-109-b (8)
EUMETCast FTP server 2h
OSI-109-d (8)
Rapid Scat 50km winds
RSCAT50 NRT Product RapidScat Scatterometer on ISS
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF
Continuous
3h
Between 56N and 56S
50 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed
N/A Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
OSI-111
Feng-Yun 3E winds TBD NRT Product FY-3E
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF
Continuous TBD Global TBD N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed N/A
Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
Expected lauch date is now 2016. (Op. in CDOP3)
OSI-112
ScatSat winds TBD NRT Product
OSCAT on ScatSat
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors
EUMETCast FTP server, data centre
BUFR, NetCDF
Continuous TBD Global TBD N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed N/A
Triple collocation with NWP and buoys
* Operational Met Services * Operational analyses and ocean models* Research or Environmental monitoring
ScatSat launched on 26/09/2016. (Op. in CDOP3)
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 39 - osisaf_cdop2_gen_prd_3_7
Product ID
Product Name
Product Acronym
Product Type
Operational Satellite Input Data
Other Opera tional Input Data
Characte ristics and Methods
Disse mina tion Means Format
Production Frequency
End-to-end time liness
Spa tial Cove rage
Spa tial sampling
Threshold Accuracy
Target Accuracy
Optimal Accuracy
Verification/ Validation Methods
Applications and main Users
Comments
OSI-150-a
ASCAT L2 25 km winds data record REPASC25
25 km
OSI-150-b
ASCAT L2 12.5 km winds data record
REPASC12+
Data record
EUMETSAT Secretariat reprocessed Metop-A ASCAT L1b
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s, wind vectors and ice probabilities. Time period 2007-2014
data centre BUFR, NetCDF N.A. offline Global
12.5 km
N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis.
N/A Triple collocation with NWP and buoys
* Reanalyses * Ocean models, air-sea interaction * Climate research, Environmental monitoring
OSI-151-a
Reprocessed SeaWinds L2 25 km winds
REPSW25 25 km
OSI-151-b
Reprocessed SeaWinds L2 50 km winds
REPSW50
Data record
QuikSCAT SeaWinds L2A from PO.DAAC
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors. Time Period 1999-2009
data centre BUFR, NetCDF N.A. offline Global
50 km
N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis.Wind speed stability better than 0.1 m/s in 10 years
N/A Triple collocation with NWP and buoys
* Reanalyses * Ocean models, air-sea interaction * Climate research, Environmental monitoring
OSI-152
Reprocessed ERS SCAT L2 winds REPERS Data record
ERS-1 and ERS-2 SCAT reprocessed by ESA (SCIRoCCo project)
ECMWF outputs (wind, SST, land-sea mask)
Swath sigma0’s and wind vectors. Time period end 1991-beginning of 2001 data centre
BUFR, NetCDF N.A. offline Global
L2: 25 km N/A
Better than 2 m/s in wind component Stdev with a bias of less than 0.5 m/s in wind speed on a monthly basis. N/A
Triple collocation with NWP and buoys
* Reanalyses * Ocean models, air-sea interaction * Climate research, Environmental monitoring
Availabiliy of ERS depends on progress in ESA Scirocco project
OSI-153-a
Oceansat-2 L2 25 km winds data record
25 km
OSI-153-b
Oceansat-2 L2 50 km winds data record
REPOSCAT Data record Oceansat-2 scatterometer
ECMWF outputs (wind, SST, land-
sea mask)
Swath sigma0’s, wind vectors and ice probabilities.
Time period 2009-2014
data centre BUFR,NetCDF
N.A. offline Global
50 km
N/A
Better than 2 m/s in wind component
Stdev with a bias of less than 0.5 m/s in
wind speed on a monthly basis.
N/A Triple collocation
with NWP and buoys
* Reanalyses * Ocean models, air-sea interaction * Climate research, Environmental
monitoring
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 40 - osisaf_cdop2_gen_prd_3_7
(8) The RadipScat 25 km and 50 km wind products (OSI-109) are available with different timeliness. One product is available approximately 2 hours after the sensing time of the middle of an orbit file and contains approximately 80% of the theoretical data amount (OSI-109-a, OSI-109-b). The other product is available approximately 3 hours after the sensing time of the middle of an orbit file and contains approximately 98% of the theoretical data amount (OSI-109-c, OSI-109-d). Hence the user can choose between a timely, but less complete product and a less timely, but more complete product.
OSI-PRD-PRO-301 Each Wind Vector Cell (WVC) of a BUFR wind product shall include: - input product data, e.g. location, backscatter data and measurement geometry, - unique wind solution (chosen) and its corresponding ambiguity, - qualifty information, such as wind quality indicator, wind direction skill, ice screening information, and a recommendation for use.
OSI-PRD-PRO-302 Each Wind Vector Cell (WVC) of a NetCDF wind product shall include: - input product data, e.g. location, - unique wind solution (chosen). - quality information, such as wind quality indicator, wind direction skill, ice screening information, and a recommendation for use.
OSI-PRD-PRO-303 NWP 10 m winds shall be appended to the satellite data in the wind product. OSI-PRD-PRO-304 The wind products quality control shall include a global checking of the mean inversion residual (“cone” distance) and wind
speed difference with the reference global NWP model over a 1-hour period. OSI-PRD-PRO-305 The wind products quality control shall include a WVC-by-WVC checking of the wind inversion residual (“cone” distance) and
ice detection at each node. OSI-PRD-PRO-306 In the case of missing NWP wind input, where no ambiguity removal may be performed, the inverted winds shall be
disseminated with ambiguity, and flagged as such in the BUFR wind products. In the NetCDF products, no winds will be present in the case of missing NWP wind input.
Ocean & Sea Ice SAF CDOP-2 Product Requirement Document
SAF/OSI/CDOP2/M-F/MGT/PL/2-001 - 41 - osisaf_cdop2_gen_prd_3_7
7. Web Site User Support requirements OSI-PRD-WUS-1 The OSI SAF Web Site shall offer to the users, depending on
their rights, access to : - general information on the OSI SAF, - information on the products and their quality, - near-real time Quicklooks, - Documentation, including Product User manuals, Product Validation reports, - Operations Reports, Technical and scientific reports, ATBD, - News and service messages, with automatic and selective near-real time sending, - a permanent user enquiry, - Frequently Asked Questions ( FAQ), - Related links, - User registration procedure allowing to a user to get full access rights, - User support through a Help desk mechanism,
- Near-real time and off line Products on FTP servers.
8. Remarks The notion of HIRLAM in the product requirement tables shall be understood as “HIRLAM” or other limited area model.