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Global satellite data provides two primary vegetation indices, Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI), at 1-kilometer spatial resolution every 16 days. The dataset includes surface reflectance bands and quality assurance layers, with pixels selected based on low cloud cover, low view angle, and highest vegetation index value. This product is designed for continuity with historical NOAA-AVHRR NDVI data and offers improved sensitivity in high biomass regions.
This is the decommissioned MOD13A2 Version 6 product. Users are strongly encouraged to use the updated MOD13A2 Version 6.1. Known issues affect data quality, particularly over arid bright surfaces due to aerosol representation errors in the underlying Collection 6 data.