EUM/RSP/VWG/19/1072458, v1 Draft, 1 April 2019 GODAE Ocean Predict 2019 François Montagner ¹, E. Kwiatkowska¹, A. O'Carroll¹, R. Scharroo¹, S. Eastwood², T. Lavergne², C. Hernandez³, H. Roquet³, A. Stoffelen⁴ Operational EUMETSAT Satellite Products and Services for Oceanography: Status and Outlook ¹EUMETSAT, Darmstadt, Germany ²Met.No, Oslo, Norway ³Météo France, Saint-Mandé, France ⁴KNMI, De Bilt, The Netherlands
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EUM/RSP/VWG/19/1072458, v1 Draft, 1 April 20191
GODAE Ocean Predict 2019
François Montagner¹, E. Kwiatkowska¹,
A. O'Carroll¹, R. Scharroo¹, S. Eastwood²,
T. Lavergne², C. Hernandez³, H. Roquet³,
A. Stoffelen⁴
Operational EUMETSAT Satellite Products and Services for Oceanography: Status and Outlook
¹EUMETSAT, Darmstadt, Germany
²Met.No, Oslo, Norway
³Météo France, Saint-Mandé, France
⁴KNMI, De Bilt, The Netherlands
EUM/RSP/VWG/19/1072458, v1 Draft, 1 April 20192
EUMETSAT and the SAF Network
HUNGARY
Member States
BULGARIA
ICELAND
AUSTRIA BELGIUM
DENMARK FINLAND
FRANCE GERMANY GREECE
IRELAND ITALY
UNITED KINGDOMTURKEY
SWEDENSPAIN
PORTUGAL
NORWAYTHE NETHERLANDSLUXEMBOURG
CROATIA
POLAND
LATVIA
SLOVENIA
ROMANIA
CZECH REPUBLIC
LITHUANIA
ESTONIA
SLOVAK
REPUBLIC
SWITZERLAND
EUMETSAT is the European Organisation for the Exploitation of Meteorological Satellites.
EUMETSAT is an intergovernmental organisation and was founded in 1986. Our purpose is to
supply weather and climate-related satellite data, images and products – 24 hours a day, 365
days a year – to the National Meteorological Services of our Member States in Europe, and
other users worldwide.
EUMETSAT operates a fleet of satellites in geostationary and polar orbit, which provide a wide
array of Earth observation data for weather, climate and environmental monitoring.
EUM/RSP/VWG/19/1072458, v1 Draft, 1 April 20193
EUMETSAT marine products stream overview
Marine Meteorology
Operational Oceanography
Marine Environment
Monitoring
Sea Surface Height
Significant Wave Height
Wind Speed
RadiativeFluxes
Wind Vectors
Sea Ice Parameters
Sea Surface
Temperature
Ocean Colour
Weather Forecasting (NWP, long term forecasts, high impact events)
• Currently operationally displaying:• ASCAT-A, -B (sun synchronous@9:30/21:30 LST)
• ScatSat (sun synchronous@8:45/20:45 LST)
• Early delivery by EARS
• Climate Data Records:• ERS-1/2 (1992-2000)
• QuikScat (2000-2009
• ASCAT-A (2007-2018)
• OceanSat-2 (2009-2014)
• Scatterometers are very stable and
can detect trends < 0.1 m/s decade
• Global trends are smaller than this
• New records are being processed:• ASCAT-C (sun synchronous@9:30/21:30 LST)
• HY2A/B (sun synchronous@6:00/18:00 LST)
• CFOSat SCAT (sun synchronous@7:00/19:00 LST)
• And we expect in 2020:• WindRad on FY3E (sun synchr.@6:00/18:00 LST)
• OceanSat-3 (sun synchronous@0:00/12:00 LST)
Zonal, Meridional Errors
ERA5 - ASCAT
=> Excess mean model zonal winds (blues) => Defective mean model meridional winds (reds)
ERA5 has annual spatial error patterns similar to ERAint (only reduced in amplitude by ~20%)
<u> <v>
➢ Model atmosphere-ocean coupling and model air-sea interaction need further improvement
Mean wind speed differences to ERA5 Mean wind stress curl differences to ERA5
Eastern Tropical Pacific
Black contours are ocean velocities
Effect of Ocean Current
Before
After
→ ERA winds are relative to the fixed Earth, but ASCAT is relative to local ocean currents
→ GlobCurrent accentuates the real SST effects in ASCAT winds that are missing in ECMWF winds
→ The correction by GlobCurrentprovides much better alignment of ECMWF discrepancies with branched SEC (N and S) to show positive curl error in between
Belmonte and Stoffelen, 2019
EUM/RSP/VWG/19/1072458, v1 Draft, 1 April 201921
Conclusions
• EUMETSAT and the OSI SAF provide a range of operational satellite products serving oceanographic applications
• Main satellite contributions are coming from Copernicus missions and EUMETSAT own missions Meteosat and Metop
• The products and services evolve continuously to fulfil user needs
• User feed-back is of prime importance to us !
• Join us at the First Operational Satellite Oceanography Symposium, June 17-20, 2019, College Park (USA) https://www.eventsforce.net/eumetsat/7/home