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GIMMS NDVI from AVHRR Sensors (3rd Generation)
GIMMS NDVI is generated from several NOAA's AVHRR sensors for a global 1/12-degree lat/lon grid. The latest version of the GIMMS NDVI dataset is named NDVI3g (third generation GIMMS NDVI from AVHRR sensors). ndvi vegetation gimms nasa avhrr noaa