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Effects of Standing Litter on the Biophysical Interpretation of Plant Canopies with Spectral Indices

Van Leeuwen J; Huete Alfredo (Elsevier, 1996)

Litter is frequently present within vegetation canopies and thus contributes to the overall spectral response of a canopy. Consequently, litter will affect spectral indices designed to be sensitive to green vegetation, ...
MODIS Vegetation Index Compositing Approach: A Prototype with AVHRR Data

Van Leeuwen J; Huete Alfredo; Laing Trevor (Elsevier, 1999)

In this study, the 16-day MODIS (MODerate resolution Imaging Spectroradiometer) vegetation index (VI) compositing algorithm and product were described, evaluated, and compared with the current AVHRR (Advanced Very High ...
Normalization of Multidirectional Red and NIR Reflectances with the SAVI

Huete Alfredo; Hua G.; Qi J.; Chehbouni A; Van Leeuwen J (Elsevier, 1992)

Directional reflectance measurements were made over a semidesert gramma (Bouteloua spp.) grassland at various times of the growing season. Azimuthal strings of view angle measurements from + 40° to - 40° were made for ...

Now showing items 1-3 of 3