Land-Surface Temperature Retrieval from MSG/SEVIRI over Brazil Using Emissivity Maps Derived from MODIS Data

نویسندگان

  • L. F. Peres
  • R. Libonati
  • C. C. DaCamara
چکیده

* Corresponding author. L. F. Peres. Email: [email protected], Tel. +55 12 3186 9454, Fax. +55 12 3186 9291 Abstract – In the present work a split-window (SW) algorithm is developed in the framework of Brazilian National Institute for Space Research (INPE)/Center for Weather Forecast and Climatic Studies (CPTEC) in order to derive land-surface temperature from Meteosat Second Generation (MSG)/Spinning Enhanced Visible and Infrared Imager (SEVIRI) data over Brazil. In addition, we have computed different regression models relating land-surface emissivity (LSE) in the SEVIRI thermal infrared (TIR) bands to LSE in MODIS bands. The obtained equations allow deriving LSE in SEVIRI TIR bands as a linear combination of emissivities retrieved from 5-km MODIS LSE product in order to be used as input to the developed SW algorithm.

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تاریخ انتشار 2007