knmi ozone satellite observations
DESCRIPTION
KNMI Ozone Satellite Observations. Pepijn Veefkind (veefkind@knmi) Piet Stammes Olaf Tuinder Ronald van der A Mark Kroon Peter van Velthoven Pieternel Levelt. Contents. OMI on EOS-Aura GOME-2 Ozone Profile product TROPOMI status and plans Multi-Sensor Reanalysis Data Dissemination. - PowerPoint PPT PresentationTRANSCRIPT
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KNMI Ozone Satellite Observations
Pepijn Veefkind (veefkind@knmi)
Piet StammesOlaf TuinderRonald van der AMark KroonPeter van VelthovenPieternel Levelt
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2WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
ContentsOMI on EOS-Aura
GOME-2 Ozone Profile product
TROPOMI status and plans
Multi-Sensor Reanalysis
Data Dissemination
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3WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
Ozone Monitoring Instrument on EOS-AuraOMI is the Dutch-Finnish contribution to NASA EOS-Aura
KNMI is the PI institute for OMI.
OMI was launched in July 2004, more than 6 years data already!
Mission extended to at least 2013.
Radiometrically the instrument is extremely stable. UV degradation ~1%.
OMI data of recent years have reduced coverage.
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4WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
Ozone Monitoring Instrument on EOS-Aura
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Plot showing the radiometric degradation of OMI.After 6 years in orbit the UV-2 degradation is ~1%. Figure: G. Jaross, SSAI
OMI daily coverage for the data after January 2009. Earlier years have daily global coverage.
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5WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
OMI DOAS Total Ozone ProductTotal ozone retrieval using the DOAS method.Produced as offline, near-real-time and very-fast delivery product (Europe only, co-operation with FMI)Current algorithm version 1.1.1.In 2011 a reprocessing of OMDOAO3 is planned that includes the following improvements:
Switch from Bass-Paur to Brion-Daumont-Malicet ozone cross sections.Spectral calibration on every ground pixel.Improved treatment of sea-ice pixels.Consistent retrieval for the whole 2004-2011 dataset.
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6WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
OMI OMO3PR Ozone Profile ProductBased on optimal estimation algorithm.
High horizontal resolution of ~60x50 km2. Vertical resolution 6-7 km.
Dataset Oct. 2004 - present.
Extensive validation using MLS on the same platform as OMI.
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OMO3PR data for one orbit of data.This product contains 3D ozone profile information, as well as the total column ozone.
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7WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
OMI OMO3PR Ozone Profile Product - Validation
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Validation paper using MLS, sonde, SAGE and GOMOS data in review.
Average (left plot) and difference (right plot) of a week of OMI and MLS ozone profiles collocated over Antarctica [90S-75S]. The legend reports the numbers characterizing the time frame and statistics of this collocation.
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8WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
GOME-2 Ozone Profile Product•Derived from GOME-2 on Metop-A •Data produced in NRT (<3 h) within the EUMETSAT O3MSAF project•Data record 2007-present •For data access, see http://o3msaf.fmi.fi and http://www.temis.nl•Ozone profiles from two GOME-2’s after Metop-B launch in April 2012
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Example of GOME-2 ozone profile information during the 2011 NH low ozone event.
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9WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
GOME-2 Ozone Profile Product - Validation
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Comparison of GOME-2 midlatitude profiles with in-situ sonde and ground based microwave observations.
Credits: Delcloo (KMI) and Lins (DWD)
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10 WMO UNEP Ozone Research Managers Meeting, 2-4 May 201110
Height-resolved Antarctic ozone hole structure in 2008
Van Peet et al., GRL, 2009
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• The ESA Sentinel-5 Precursor (S-5P) is a pre-operational mission focussing on global observations of the atmospheric composition for air quality and climate.
• The TROPOspheric Monitoring Instrument (TROPOMI) is the payload of the S-5P mission and is jointly developed by The Netherlands and ESA.
• The planned launch date for S-5P is 2014 with a 7 year design lifetime.
sentinel-5 precursorGMES ATMOSPHERE MISSION IN POLAR ORBIT
‣UV-VIS-NIR-SWIR nadir view UV-VIS-NIR-SWIR nadir view grating spectrometer.grating spectrometer.
‣Spectral range: 270-500, Spectral range: 270-500, 675-775, 2305-2385 nm675-775, 2305-2385 nm
‣Spectral Resolution: 0.25-Spectral Resolution: 0.25-1.1 nm1.1 nm
‣Spatial Resolution: 7x7kmSpatial Resolution: 7x7km22
‣Global daily coverage at Global daily coverage at 13:30 local solar time.13:30 local solar time.
TROPOMITROPOMI
‣Total columnTotal columnOO33, NO, NO22, CO, SO, CO, SO22,CH,CH44, , CHCH22O,HO,H22O,BrOO,BrO
‣Tropospheric columnTropospheric columnOO33, NO, NO22
‣OO33 profile profile
‣Aerosol absorbing index, Aerosol absorbing index, type, optical depthtype, optical depth
CONTRIBUTION TO GMESCONTRIBUTION TO GMES
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12 WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
TROPOspheric Monitoring InstrumentTROPOMI is developed by The Netherlands in co-operation with ESA.
KNMI is the PI institute
Compared to OMI:
6x higher spatial resolution7x7 km2 vs. 13x24 km2
1-5x higher signal to noise
better cloud informationoxygen A band (675-775 nm) added
CO and CH4 observationsSWIR band (2305-2385 nm) added
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TROPOMI optical design.Figure: Dutch Space
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13 WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
Multi Sensor Reanalysis (MSR) of total ozoneLong term data record based on a large number of satellite sensors and ground based Brewer-Dobson stations.
Data assimilation is applied to provide a global consistent dataset.
MSR dataset is available at http://www.temis.nl/macc/index.php?link=o3_msr_intro.html .
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Van der A, R. J., Allaart, M. A. F., and Eskes, H. J.: Multi sensor reanalysis of total ozone, Atmos. Chem. Phys., 10, 11277-11294, doi:10.5194/acp-10-11277-2010, 2010.
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Data used for the Multi Sensor Reanalysis (MSR) of ozone
• TOMS Nimbus 7: 1978-1993 TOMS v.8 NASA
• TOMS EarthProbe: 1996-2002 TOMS v.8 NASA
• SBUV 7, 9a, 9d, 11, 16: 1978-2004 SBUV v.8 NOAA
• GOME : 1995-2008 GDP v.4 ESA/DLR
• GOME : 1995-2008 TOGOMI v1.2 KNMI
• SCIAMACHY : 2002-2008 SGP v.3 ESA/DLR
• SCIAMACHY : 2002-2008 TOSOMI v.0.43 KNMI
• OMI : 2004-2008 TOMS v.3 NASA
• OMI : 2004-2008 DOAS v.3 KNMI
• GOME-2 : 2007-2008 GDP v.4.2 EUMETSAT/DLR
• WOUDC: 1978-2008 Brewer(3,4), Dobson, Filter
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30 year of assimilated ozone based on bias-corrected satellite data
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16 WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
Data Dissemination and More Information
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http://disc.sci.gsfc.nasa.gov/Aura/data-holdings/OMI/index.shtml
http://www.temis.nl/
http://www.knmi.nl/omi/
http://omivfd.fmi.fi
http://o3msaf.fmi.fi/http://www.tropomi.eu/TROPOMI/Home.html
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17 WMO UNEP Ozone Research Managers Meeting, 2-4 May 2011
SummaryKNMI instrument involvement as PI institute:
OMI on Aura (2004-present)
TROPOMI on ESA/GMES Sentinel 5 Precursor (planned launch 2014)
KNMI ozone data products:
Total ozone: OMI and SCIAMACHY
Ozone profile: OMI and GOME-2
Multi-Sensor Reanalysis (MSR) of total ozone
Assimilated ozone profile dataset will be made in the ESA CCI project
Data dissemination through temis.nl, O3MSAF, NASA and EUMETSAT web sites
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2011 NH Low Ozone: Febr.-March