Datasets Activity Stream About Order by Relevance Name Ascending Name Descending Last Modified Go 1 dataset found Formats: JPEG Tags: biomass Filter Results Circumpolar Arctic AVHRR NDVI Trend 1982-2008 (Bhatt et al. 2010) 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... PDF ZIP JPEG