VIIRS/NPP Gross Primary Productivity and Net Photosynthesis 8-Day L4 Global 500m SIN Grid V002

The NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Gross Primary Productivity (GPP) and Net Photosynthesis (PSN) (VNP17A2) Version 2 data product is a cumulative composite of GPP values based on the radiation use efficiency concept that is potentially used as inputs to data models to calculate terrestrial energy, carbon, water cycle processes, and biogeochemistry of vegetation. VNP17A2 is an 8-day composite at 500 meter (m) spatial resolution delivered as a gridded Level 4 (L4) product in Sinusoidal projection.

Provided in the VNP17A2 product are 3 variables for GPP, PSN, along with a quality control variable. A low resolution browse image for GPP is also available for each VNP17A2 granule.

Known Issues * For complete information about known issues please refer to the MODIS/VIIRS Land Quality Assessment website.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 24, 2026, 23:39 (UTC)
Created July 17, 2025, 00:04 (UTC)
accessLevel public
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harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/VIIRS/VNP17A2.002
license https://www.usa.gov/government-works
modified 2026-08-17T22:16:01Z
programCode {026:000}
publisher LP DAAC;NASA/GSFC/SED/ESD/TISL/LandSIPS
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spatial ["CARTESIAN", [{"NorthBoundingCoordinate": 90, "WestBoundingCoordinate": -180, "EastBoundingCoordinate": 180, "SouthBoundingCoordinate": -90}]]
temporal 2025-01-01/2026-08-17
theme {"Earth Science"}