Datasets Activity Stream About Order by Relevance Name Ascending Name Descending Last Modified Go 1 dataset found Tags: CAVM Filter Results Alaska Arctic AVHRR NDVI Map The normalized difference vegetation index (NDVI) is a measure of greenness. NDVI was calculated as: NDVI = (NIR - R) / (NIR + R), where NIR is the spectral reflectance in the... ZIP JPEG PDF