CMS: Forest Aboveground Biomass from FIA Plots across the Conterminous USA, 2009-2019

This dataset provides forest biomass estimates for the conterminous United States based on data from the USDA Forest Inventory and Analysis (FIA) program. FIA maintains uniformly measured field plots across the conterminous U.S. This dataset, derived from field survey data from 2009-2019, includes statistical estimates of biomass at the finest scale (64,000-hectare hexagons) allowed by FIA's sample density. Estimates include the mean (and standard error of the mean) biomass for both live and dead trees, calculated using three sets of allometric equations. There is also an estimate of the area of forestland in each hexagon. These data can be useful for assessing the accuracy of remotely sensed biomass estimates.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated March 30, 2026, 22:09 (UTC)
Created April 1, 2025, 15:13 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 66450097-8ec5-47c8-9078-58d2092c0e36
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1873
license https://www.usa.gov/government-works
modified 2026-03-23T22:16:01Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 262f6845c4e3d440feeff3f57a7ca6f741f17d4bf9a1db6313dc11d97f717140
source_schema_version 1.1
spatial [[{"WestBoundingCoordinate":-125.009,"NorthBoundingCoordinate":49.5076,"EastBoundingCoordinate":-66.6917,"SouthBoundingCoordinate":24.3193}],"CARTESIAN"]
temporal 2009-01-01/2019-12-31
theme {"Earth Science"}