Global Vegetation Indices from the NOAA-7 Meteorological Satellite

Northern and Southern Hemisphere polar stereographic maps of “vegetation index” are now being produced by the National Oceanic and Atmospheric Administration. The maps are derived from visible and near-infrared data from NOAA's operational polar orbiting satellites. The data are composited over a weekly period to minimize cloud and scan angle effects. The mapped images are being made available to the public in both image and tape format, on a regular schedule.