Satellite-based radiation
Transcript of Satellite-based radiation
© Bern, 210913 Anke Tetzlaff 1
Federal Department of Home Affairs FDHAFederal Office of Meteorology and Climatology MeteoSwiss
Satellite-based radiation and its applicationAnke Duguay-Tetzlaff, MeteoSwiss
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Climate Monitoring SAF
Satellite-derived products and services for climate monitoring.
www.cmsaf.eu
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Joint retrieval of all surface radiation components to ensure consistency in terms of:
• boundary conditions• cloud forcing• retrieval algorithms• calibration• radiometric transfer
1983-2020 CDR to be released
Meteosat Surface Radiation Budget
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Meteosat Calibration
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Meteosat Calibration
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Surface Outgoing Longwave Radiation
@ UK Met Office Hadley Centre
Highly consistent! • Anomaly space• Night-time
Satellite
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Surface Incoming Solar Radiation
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Accuracy of CM SAF surface radiationAccuracy*
SIS 5 W/m2
Albedo 10 %SDL 11 W/m2
SOL 10 W/m2
* Monthly mean
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Applications for Swiss Climate Services
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WMO New Climate Normals 1991-2020
CM SAF Meteosat Climate Data Records cover new WMO Climatological Normal
Climate Normals serve as a ruler to compare today’s weather and as a predictor of conditions in the near future. Benchmark to provide context to recent climate conditions.
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Solar Incoming Surface Radiation2018
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Solar Energy«Sonnendach»
https://www.uvek-gis.admin.ch/BFE/sonnendach/@BFE, MeteoSwiss
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Climate modelling of heat stress
T, humidity und wind from ground stations
CM SAF global radiation
@ Christoph Spirig, Ana Casanueva MeteoSwissH2020 HeatShield
Bias Correction
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CM SAF Evapotranspiration vs. Lysiometer
Comparison CM SAF Evapotranspiration with ground data (anomaly, 2005 to 2016) @ ETH, Dominik Michel
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Conclusions
• Strong progress on satellite data calibration the last years
• Improved temporal stability and precision for satellite-based surface radiation data
• Meteosat satellite CDRs cover the new WMO Climatological Normal 1991-2020
• Satellite-based radiation data are integrated in Swiss climate services
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Federal Department of Home Affairs FDHAFederal Office of Meteorology and Climatology MeteoSwiss