Overview of the “Geostationary Earth Radiation Budget (GERB)” Experience. Nicolas Clerbaux Royal Meteorological Institute of Belgium (RMIB) In collaboration with: Imperial College, UK. Rutherford Appleton Laboratory (RAL), UK. GERB International Science Team (GIST).
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Overview of the “Geostationary Earth Radiation Budget (GERB)” Experience. Nicolas Clerbaux Royal Meteorological Institute of Belgium (RMIB) In collaboration.
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Overview of the “Geostationary Earth Radiation Budget (GERB)”
Experience.
Nicolas ClerbauxRoyal Meteorological Institute of Belgium (RMIB)
In collaboration with:Imperial College, UK.
Rutherford Appleton Laboratory (RAL), UK. GERB International Science Team (GIST).
What it GERB ?• New instrument on the
Meteosat Second Generation satellites of EUMETSAT,
• First broadband imager radiometer observing the Earth from a geostationary satellite
Outline of the talk
• The GERB mission/science goals : why we need new measurements of the Earth Radiation Budget (ERB),
• Interest of the Meteosat field-of-view,
• GERB instrument, data processing, derived products and current status,
• Examples of GERB data usage
The
Ear
th R
adia
tion
Bud
get (
ER
B)
Diurnal and synoptic variability
Lake Victoria
Congo Tanzania
KenyaUganda
Rwanda
Burundi
Meteosat-8 images – 12 July 2004
GERB Mission• Measurement of the ERB with high temporal sampling
thanks to the geostationary orbit.
• Improvement of climate models by better understanding the role of clouds and water vapour in the ERB,
• Improvement of Numerical Weather Prediction (NWP) models by data assimilation or near real-time validation,
• Synergy with low orbit satellites observations: improvement of the diurnal model,
• Climate monitoring in the frame of the EUMETSAT Satellite Application Facility on Climate Monitoring (CM-SAF).