Suomi NPP 7 Day Composite Green Vegetation Fraction, 3/16 to 3/22/2016 - click to enlarge
Green Vegetation Fraction (GVF)
Team Lead: Yunyue (Bob) Yu
Product Description
Green Vegetation Fraction (GVF) is the fractional green vegetation cover within a specific grid cell.
- The VIIRS GVF algorithm is a modified version of the Gutman and Ignatov's (1998) GVF algorithm
- The VIIRS GVF algorithm uses the VIIRS bands I1, I2 and M3 as input
- The VIIRS GVF is derived form EVI
Product and Data Access
Products and data:
EDR Long Term-Monitoring
Documentation
- Green Vegetation Fraction ATBD, (PDF, 4.94 MB)
The SNPP VIIRS GVF system generates two products:
- Weekly Global GVF at 4 km resolution
- Weekly Regional GVF at 1 km resolution (Lat 7.5°S to 90°N, Lon 130°E to 30°E)
Weekly (updated daily) GVF products are generated in Lat/Lon projection
Users
NWS/NCEP/EMC, NASA SPoRT, NOAA ESRL, UMD