villefranche sur mer: 4th-6th dec 2006 medspiration 4th and globcolour 1st ucm overview of progress...

VillefrancVillefranche sur Mhe sur Mer: 4th-6ter: 4th-6th Dec 20h Dec 200606

Medspiration 4Medspiration 4th and Globcolth and Globcolour 1st UCMour 1st UCM

Overview of Progress in Medspiration

Overview of Progress in Medspiration

Ian Robinson, Project manager

2Villefranche sur Mer: 4th-6th Dec 2006

Medspiration 4th and Globcolour 1st UCM

Outline of Medspiration Project Status

Outline of Medspiration Project Status

Background to the Medspiration ProjectOverview of the Medspiration ServiceSummary of OperationRecent DevelopmentsLooking forward



A brief history of Medspiration

A brief history of Medspiration

2001-2003 GHRSST-PP establishes methodology for complementary use of SST from different sources

GODAE High-Resolution Sea Surface Temperature, Pilot Project GHRSST Data-processing Specification (GDS 1.5) agreed

2003 ESA proposes Medspiration project (part of DUE) GHRSST is the “Key User” to whom ESA responds

The European regional data assembly centre (RDAC) for GHRSST European User requirements document for SST is produced

ITT issued July 2003. Contract confirmed Dec 2003. K/O 1-01-042004-5 Phase 1 of Medspiration

System Requirements Review: 4-5 Mar, 2004 Critical design review: 14th July, 2004 Qualification Review: 24-26 Nov, 2004 Beta Test: 1-28 Feb 2005 Acceptance Review & 1st UCM : 22-23 March 2005

Medspiration ConsortiumNational Oceanography Centre, Southampton (Prime)Ifremer, BrestMeteo-France (CMS, Lannion) CLS , ToulouseCNR, RomeMet.No, OsloVega plc, UK



The GHRSST-PP ConceptThe GHRSST-PP Concept In principle, the merging and analysis of complementary

satellite and in situ measurements can deliver SST products with enhanced accuracy, spatial and temporal coverage.

DataFusion

QualityControl

User ApplicationsTo facilitate the movement of data



The Issues GHRSST grappled with

The Issues GHRSST grappled withDifferent types of SST from different sources

Skin Sub-skin Biased to buoy observations (~ 1m depth)

Different sensor types Infra-red limited by cloud but offers fine spatial and radiometric resolution Microwave radiometers penetrate cloud, but have coarser resolution

Different sampling characteristics Polar orbit, wide swath, ~ 1 km resolution (IR) Polar orbit, wide swath, 25 – 60 km resolution (MW) Geostationary orbit, ~ 5 km resolution (IR) Polar orbit, 500 km swath, 1 km resolution, high accuracy & stability (IR)

Natural ocean – atmosphere variability Diurnal variability of SST Clouds Atmospheric aerosol Sea ice etc.

Different SST product formatting



Tem

pera

ture

(o C

)

Arabian Sea WHOI Mooring Data - Spring 1995(1mm data estimated using Fairall et al. (1996))

Thermal structure of top 5m (from sub-skin to 5m)

(From the PhD of A. Stuart-Menteth

Temperatures at all depths collapse overnight to the same value at dawn

The temperature at dawn (uniform

through the top 5 m) is called the

Foundation Temp. (SSTfnd)



Near-surface profiles of temperature

Near-surface profiles of temperature

A ship intakemeasures SSTabout here

A buoy measuresSST about here

Infrared radiometers measure skin SST

“Foundation” SST

Microwave radiometers measure sub-skin SST



The GHRSST solutionThe GHRSST solutionPre-process all L2SST datasets from different sources

Add error statistics if not already present Add quality flags if not present Attach ancillary data that can inform the interpretation

E.g., wind speed, solar radiation, atmospheric aerosol, sea ice Re package as level 2P in standard (netCDF) format Do this in near-real time

Create match-up database (MDB) Pair all available in situ obs. of SST with coincident satellite data

Create a high resolution diagnostic dataset (HR-DDS) Assemble extracts of all L2P data at specific sites for ease of

intercomparisonPerform O.I. analyses of L2P data to create L4 productsProvide archive / distribution suitable for operational usersOversee quality assessment and reanalysis



Medspiration Data processing tasks



Ingest input and apply quality

control

L2 SST data from several sensors

In situ SST data

Auxiliary data (wind, etc.)

Generate L2P data products

Generate MDB records

Generate analysed SST L4 products

Disseminate L4 UHR data to EU

users

L2P data

L4 SSTfnd UHR

Disseminate L2P data to GHRSST-

PP GDAC & users

Extract DDS L2P granules

Sensor specific error statistics

Reference data fields

Extract DDS L4 granules

L2P DDS granules

L4 DDS UHR granules

Medspiration Final Archive

MDB records

Medspiration DDS Archive

GHRSSTMDB Archive

CMS

IFREMER

NOCS

Disseminate DDS granules

Distributed data processing chain for Medspiration Phase 1



Medspiration

Coverage of L2P

products

Medspiration

Coverage of L2P

products



The Medspiration UHR L4 product

The Medspiration UHR L4 product

Ultra-high resolution (UHR) 2 km grid

Analysis performed once per day

Estimates the foundation SST



Medspiration Phase 2Medspiration Phase 2Operational delivery of products from 1st June 2005

Extended by at least 18 months in response to User request The same range of products as developed in Phase 1 UHR L4 domain extended west into Atlantic

Extended AATSR L2P product to global coverage In response to the international users through the GHRSST ST Provided since Dec 2005

Developed a number of key operational users Assimilation into ocean models

Met Office, UK FOAM model Analysis products

OSTIA Mersea Scandinavian seas

Growing international use See later talks from users



Present statusPresent status

Medspiration is operating as planned See presentation by Jean-Francois Piollé, Operations manager

Regular delivery of the basic L2P productsMDB being generated

Being used to check error statistics HR-DDS now has a web interface

Consulted by operational usersL4 products routinely generated

Configuration has been refined Delivery time changed

Analysis now runs at 12.00 on Day N (delivery by 15:00) using data acquired between 06:00 on day N-1 and 06:00 on day N



Current ongoing Development

Current ongoing Development

Improved interface to MDB (CCN-1): Ifremer Now in place and being used

Improved outreach tools (CCN-1): Boost Technologies Medspiration products within Google Earth

• See Fabrice Collard’s talk

Medea outreach along European coastline E.G German newspapers used the UHR-L4 product during the recent

summer A study of methods for reaching the news media, and a eview of their interst

is being made by Boost technologies• See Fabrice Collard’s talk

Improving the AATSR Error Statistics (CCN-2 recently approved) Use of the MDB by AATSR validation scientist to improve SSES

Confirm the proposed use of the “view difference” data• See talk by Gary Corlett

Target is to establish a means for automatically checking SSES validity



Sustaining the Medspiration Service

Sustaining the Medspiration ServiceGMES Marine Core Services

Medspiration experience valuable for MCS implementation GHRSST & Medspiration underpin the Sentinel-3 SST planning

Proposals for transitioning the Medspiration service into an element of the MCS

See presentation on Wednesday Needs comments and endorsement of the user community Timing of MCS implementation uncertain: Extension of

Medspiration to Dec 2007 is desirableInteraction – complementarity with GlobCOLOUR

Interchange of ideas and information is already occurring Other mutual benefits to be explored at this meeting

The Importance of Medspiration’s users You continue to be the drivers – tell us what you need The same principle is to be applied within EU MCS activities

villefranche sur mer: 4th-6th dec 2006 medspiration 4th and globcolour 1st ucm overview of progress...

Documents

medspiration phase

villefranche sur mer

l2p data products

movement of data slide

medspiration project

sst products

l4 uhr data

analyses of l2p data