The GERB Edition 1 products SEVIRI scene identification

Alessandro Ipe; Cedric Bertrand; Nicolas Clerbaux; Steven Dewitte; Luis Gonzalez

doi:10.1117/12.737309

26 October 2007 The GERB Edition 1 products SEVIRI scene identification

Alessandro Ipe, Cedric Bertrand, Nicolas Clerbaux, Steven Dewitte, Luis Gonzalez

Author Affiliations +

Proceedings Volume 6745, Remote Sensing of Clouds and the Atmosphere XII; 674512 (2007) https://doi.org/10.1117/12.737309
Event: SPIE Remote Sensing, 2007, Florence, Italy

Abstract

The first Geostationary Earth Radiation Budget (GERB) instrument was launched during the 2002 summer together with the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) on board of the Meteosat-8 satellite. This broadband radiometer aims to deliver near real-time estimates of the top of the atmosphere solar and thermal radiative fluxes at high temporal resolution thanks to the geostationary orbit. Such goal is achieved with the L20 GERB processing which generates these fluxes at several spatial resolutions from the directional filtered radiance measurements of the instrument. This processing consists of successive components, one of them being a radiance-to-flux conversion. Such conversion is carried out in the solar region by using the shortwave angular dependency models (ADMs) developed from the Tropical Rainfall Measuring Mission (TRMM) Clouds and the Earth's Radiant Energy System (CERES) experiment. As these ADMs are stratisfed according to specific scene properties, the GERB ground segment will have to rely on a scene identification of SEVIRI data which allows us to select the proper ADM. In this paper, we will briefly justify and describe the implementation of a specific GERB scene identification for the offcial Edition 1 release of the L2 products. Preliminary comparisons between GERB and CERES scene identifications both applied to SEVIRI data will follow. Finally, we will suggest possible improvements based on limitations which could be found.

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Alessandro Ipe, Cedric Bertrand, Nicolas Clerbaux, Steven Dewitte, and Luis Gonzalez "The GERB Edition 1 products SEVIRI scene identification", Proc. SPIE 6745, Remote Sensing of Clouds and the Atmosphere XII, 674512 (26 October 2007); https://doi.org/10.1117/12.737309

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