NACP Site: Terrestrial Biosphere Model and Aggregated Flux Data in Standard Format

This data set provides standardized output variables for gross primary productivity (GPP), net ecosystem exchange (NEE), leaf area index (LAI), ecosystem respiration (Re), latent heat flux (LE), and sensible heat flux (H) from 24 terrestrial biosphere models for 47 eddy covariance flux tower sites in North America. Each model used standardized input data for each flux tower site (i.e., gap-filled, locally observed weather; land use history; and other site specific data) and followed standard model setup and spinup procedures. The files also contain gap-filled observations and total uncertainty estimates. The data set was compiled for the North American Carbon Program (NACP) Site-Level Synthesis for use in model inter-comparison and assessment of how well the models simulate carbon processes across vegetation types and environmental conditions in North America. There is one compressed (.zip) file with this data set. When expanded, the .zip file contains model output data for one variable at one site. The model output and observations are available at the native half-hourly time step, or in daily, monthly, and annual aggregations, in comma-separated text (.csv) format.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 6, 2026, 20:46 (UTC)
Created April 1, 2025, 17:54 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 460a5c61-36ec-4182-b929-f03a96e65756
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1183
license https://www.usa.gov/government-works
modified 2026-03-30T22:16:01Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 11942f20bde0b1f98069ee052a4fc7eafa1ed79ed9cee73fe343aa906269adcf
source_schema_version 1.1
spatial [[{"WestBoundingCoordinate":-170.0,"NorthBoundingCoordinate":84.0,"EastBoundingCoordinate":-50.0,"SouthBoundingCoordinate":10.0}],"CARTESIAN"]
temporal 1998-01-01/2007-12-31
theme {"Earth Science"}