Simulating Meteosat-7 broadband radiances using two visible channels of Meteosat-8

Autor: Michel Albuisson, Lucien Wald, Sylvain Cros
Přispěvatelé: Centre Énergétique et Procédés (CEP), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), CEP/Sophia, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-MINES ParisTech - École nationale supérieure des mines de Paris
Rok vydání: 2006
Předmět:
010504 meteorology & atmospheric sciences
Mean squared error
Meteorology
[SDE.MCG]Environmental Sciences/Global Changes
020209 energy
satellite
Irradiance
02 engineering and technology
01 natural sciences
atmosphere optics
[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing
Broadband
0202 electrical engineering
electronic engineering
information engineering
Calibration
General Materials Science
meteorology
mapping
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces
environment
0105 earth and related environmental sciences
Remote sensing
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
Renewable Energy
Sustainability and the Environment
image processing
radiation
Environmental science
Satellite
[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
albedo
Meteosat
Communication channel
Zdroj: Solar Energy
Solar Energy, Elsevier, 2006, 80 (3), pp.361-367. ⟨10.1016/j.solener.2005.01.012⟩
ISSN: 0038-092X
1471-1257
DOI: 10.1016/j.solener.2005.01.012
Popis: International audience; This paper addresses the conversion of narrow-to-broadband radiances in the special case of the sensor SEVIRI onboard the satellite Meteosat-8 of the Meteosat Second Generation (MSG). The advent of this new program poses the problem of the transfer of operational procedures from the previous satellite Meteosat-7 to MSG. Among these operational procedures are several different implementations of the Heliosat method to convert Meteosat data into irradiance maps. An easy-to-implement fast-running method is proposed that combines the radiances of the two narrow visible bands of SEVIRI to produce broadband radiances that are almost identical to those observed in the broadband channel of Meteosat-7. A comparison between Meteosat-7 actual radiances and these simulated-radiances shows errors with a negligible bias and a relative root mean square error (RMSE) of 6%. After combination with the uncertainties found in the calibration procedures (10-13%), the total relative RMSE on the radiances amounts to 12-14%. It is concluded that the Meteosat-8 images may be used in operational procedures currently applied to Meteosat-7 images.
Databáze: OpenAIRE
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