NOAA Office of Satellite and Product Operations

VIIRS Green Vegetation Fraction (GVF) Product

The Green Vegetation Fraction (GVF) system was developed to generate GVF as a NOAA-Unique Product (NUP) from data from the Visible Infrared Imager Radiometer Suite (VIIRS) sensor onboard Suomi National Polar-orbiting Partnership (SNPP) satellite, for applications in numerical weather and seasonal climate prediction models at the National Centers for Environmental Prediction (NCEP). The retrieval algorithm uses VIIRS red (I1), near-infrared (I2) and blue (M3) bands centered at 0.640 µm, 0.865 µm and 0.490 µm, respectively, to calculate the Enhanced Vegetation Index (EVI) and derive GVF from EVI. GVF will be produced as a daily rolling weekly composite at 4-km resolution (global scale) and 1-km resolution (regional scale). After they are produced in the GVF system they are tailored into BUFR by the N4RT system that also runs within NDE.

The VIIRS GVF product now online are weekly composites and have a resolution of about 4 km.

A VIIRS GVF exmaple image

Regional GVF