RADIANT CORRECTION OF ETM<sup>+</sup>IMAGERY BASED ON DEM AND DERIVATION OF ALBEDO IN HANJIANG RIVER BASIN

doi:10.6046/gtzyyg.2004.03.03

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Abstract This study presents an easy and fast radiant correction approach that can be used to perform atmospheric correction and topographic correction in mountain areas. This approach only needs the selection of two dark pixels in different elevations from ETM⁺ imagery, and the atmospheric correction based on DEM and dark pixels in different elevations can be conducted so as to get atmospheric and radiant parameters at all elevations. On such a basis, the topographic correction can be carried out and the surface reflectance can be calculated for ETM⁺ band 1～5 and 7. At last, a band integration approach is used to obtain the total continuous spectral albedo over the study site. The result shows that the method is effective in the inversion of surface albedo.

Issue Date: 02 August 2011

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ZHU Ye-fei, ZHANG Wan-chang, JIANG Jian-jun. RADIANT CORRECTION OF ETM⁺IMAGERY BASED ON DEM AND DERIVATION OF ALBEDO IN HANJIANG RIVER BASIN[J]. REMOTE SENSING FOR LAND & RESOURCES,2004, 16(3): 8-13.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2004.03.03 OR https://www.gtzyyg.com/EN/Y2004/V16/I3/8

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