A method for the mapping of the apparent ground brightness using visible images from geostationary satellites

Guy Moussu (1) , Lamissa Diabaté (1) , Dominique Obrecht (1) , Lucien Wald (2)

1 CTAMN - Centre de Télédétection et d'Analyse des Milieux Naturels
2 CEP/Sophia

This paper deals with a method for mapping the apparent ground brightness on a pixel basis. It makes use of geostationary satellite visible data and generalizes the earlier work of Cano (1982). The detection of clouds larger than one pixel is performed in a time series by comparing the cloud-induced sensor response to the signal which would occur if the pixel were cloud-free by means of an iterative and adaptive filtering. To illustrate the method, Meteosat data either received by means of a WEFAX-type receiver connected to a personal computer or provided by ESOC have been processed. Maps of apparent ground brightness are presented for Europe and Africa with 5 km resolution.

Domaines: Planète et Univers [physics]; Sciences de la Terre; Météorologie; Sciences de l'ingénieur [physics]; Traitement du signal et de l'image [eess.SP]; Informatique [cs]; Traitement du signal et de l'image [eess.SP]

Guy Moussu, Lamissa Diabaté, Dominique Obrecht, Lucien Wald. A method for the mapping of the apparent ground brightness using visible images from geostationary satellites. International Journal of Remote Sensing, 1989, 10 (7), pp.1207-1225. ⟨hal-00464370⟩