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NPP first images for land cover was obtained on 11/21/2011

NPP VIIRS 500m GVI data were produced since May 2, 2012 to now

Data and images displayed on STAR sites are provided for experimental use only and are not official operational NOAA products. More information>>

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STAR - Global Vegetation Health Products :

Comparison on SMN, SMT, VCI, TCI, VHI : VIIRS vs. AVHRR