DETERMINATION OF LAND SURFACE SPECTRAL REFLECTANCES USING METEOSAT AND NOAAA AVHRR SHORTWAVE CHANNEL DATA

被引:12
作者
ARINO, O [1 ]
DEDIEU, G [1 ]
DESCHAMPS, PY [1 ]
机构
[1] LAB ETUD & RECH TELEDETECT SPATIALE,F-31055 TOULOUSE,FRANCE
关键词
D O I
10.1080/01431169208904268
中图分类号
TP7 [遥感技术];
学科分类号
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要
A method to derive surface spectral reflectances from currently available Meteosat geostationary and NOAA/AVHRR polar orbiting satellite data is described. Broadband reflectance was derived from Meteosat measurements while NOAA/AVHRR vegetation index provided a spectral weighting which enabled the spectral reflectances on either side of 0.7-mu-m to be estimated. The method takes into account satellite calibrations, viewing geometry, and correction of some atmospheric effects. Conversion from narrow-band to broadband reflectances is discussed. The method was applied to a month of data to obtain the surface spectral reflectances of Africa which are compared with some data sets used by climate modellers, in order to assess them and to monitor their seasonal and interannual changes on a global scale.
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收藏
页码:2263 / 2287
页数:25
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