AVHRR data processing to study the surface canopies in temperate regions First results of HAPEX-MOBELHY

Abstract Automatic methods to correct vegetation index images from AVHRR are developed and tested. The corrected images are used to plot the temporal variations of the normalized difference vegetation indices in the HAPEX domain for two kinds of vegetation cover. The curves are interpreted differentiating the signal due to phenology from that probably caused by problems of haze or anisotropy.

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