Monthly 0.05° gross primary production, net ecosystem exchange, and evapotranspiration estimates for western U.S. drylands

This dataset includes monthly gross primary production (GPP), net ecosystem exchange (NEE), and evapotranspiration (ET) estimates for the western United States at 0.05° resolution for April 2015 through December 2020. Eddy covariance GPP, NEE, and ET observations from a network of 28 sites were upscaled using an ensemble of 560 artificial neural networks (ANNs) based on MODIS vegetation indices, MODIS land surface temperature, SMAP soil moisture/temperature, and Rangeland Analysis v3 sub pixel plant functional type fractional cover. The model ensemble captured >70% of the monthly variance in GPP and ET and ~35% for NEE. The model also captured 70-80% of the spatial variance in GPP and ET (~50% for NEE) and ~80-98% of the mean seasonal variance in GPP and ET at the majority of the eddy covariance sites.