Global Monthly GPP from an Improved Light Use Efficiency Model, 1982-2016

Published by ORNL_DAAC | National Aeronautics and Space Administration | Metadata Last Checked: September 14, 2025 | Last Modified: 2025-09-11

This dataset provides global monthly average gross primary productivity (GPP; g carbon/m2/d) modeled at 8 km spatial resolution for each of the 35 years from 1982-2016. GPP is based on the well-known Monteith light use efficiency (LUE) equation but was improved with optimized spatially and temporally explicit LUE values derived from selected FLUXNET tower site data. Optimized LUE was extrapolated to a consistent 8 km resolution global grid using multiple explanatory variables representing climatic, landscape, and vegetation factors influencing LUE and GPP. Global gridded long-term daily GPP was derived using the optimized LUE, Global Inventory Modeling and Mapping Studies (GIMMS3g) canopy fraction of photosynthetically active radiation (FPAR), and Modern-Era Retrospective analysis for Research and Applications, Version 2, (MERRA-2) meteorological information. These data will improve satellite-based estimation and understanding of GPP using a refined LUE model framework.

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earth-science-ecological-dynamics-biosphere-ecosystem-functions-primary-production earth-science-land-use-land-cover-land-surface-land-use-land-cover-classification earth-science-soils-land-surface-soil-productivity-gross-primary-production-gpp earth-science-vegetation-biosphere-photosynthetically-active-radiation-fraction-of-absorbed-pho earth-science-vegetation-biosphere-vegetation-cover

Complete Metadata

bureauCode	[ "026:00" ]
identifier	10.3334/ORNLDAAC/1789
landingPage	https://search.earthdata.nasa.gov/search?q=Global_Monthly_GPP_1789&ac=true
programCode	[ "026:000" ]
spatial	[[{"WestBoundingCoordinate":-180.0,"NorthBoundingCoordinate":90.0,"EastBoundingCoordinate":180.0,"SouthBoundingCoordinate":-90.0}],"CARTESIAN"]
temporal	1982-01-01/1982-01-01
theme	[ "Earth Science" ]