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Vegetation Index (VI)

The VIIRS Vegetation Index (VI) system generates gridded VI products globally and regionally for North America using data from S-NPP VIIRS and J01 VIIRS granules. These products include TOA NDVI, TOC NDVI, TOC EVI, and associated quality flags (land/water mask, cloud confidence, aerosol loadings, and exclusion conditions).

POES | Resolution: 4km (Global), 1km (Regional) | Frequency: Daily, Weekly & Bi-weekly

Green Vegetation Fraction (GVF) system

The Green Vegetation Fraction (GVF) system, a NOAA-Unique Product (NUP), generates GVF data using the VIIRS sensor on the Suomi National Polar-orbiting Partnership (SNPP) and NOAA-20 (J01) satellites. It serves the National Centers for Environmental Prediction (NCEP) for use in numerical weather and seasonal climate prediction models.

POES (VIIRS) | Resolution: 4km | Frequency: Daily & Weekly

VIIRS Vegetation Health Product (VVHP)

The VIIRS Vegetation Health Product (VVHP) consists of weekly gridded global vegetation indices, including the Vegetation Condition Index (VCI), Temperature Condition Index (TCI), and Vegetation Health Index (VHI). These indices are derived from VIIRS Scientific Data Records (SDR) and cover the global region between latitude 55°S to 75°N.

POES | Resolution: 1km | Frequency: Weekly