NACP NAFD Project: Forest Disturbance Intensity for CONUS from Landsat, 1986-2015

This dataset contains estimates of forest disturbance intensity for the conterminous United States from 1986 to 2015. It quantifies the severity/intensity of forest disturbances at 30 m resolution using time series Landsat observations and the vegetation change tracker algorithm. For each disturbance event mapped at a pixel location, the percentage of basal area removal (PBAR) after the disturbance event was estimated based on spectral changes derived from Landsat data and Random Forest models calibrated using field measurements collected by the US Forest Service Forest Inventory and Analysis (FIA) Program. This dataset complements and extends the North American Forest Dynamics-NASA Earth eXchange (NAFD-NEX) US Forest Disturbance History dataset and the NAFD-ATT Forest Canopy Cover Loss dataset from 1986-2010 to 1986-2015. Data are provided in Cloud Optimized GeoTIFF (*.tif) format.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated April 21, 2026, 03:14 (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 d3c013dc-0d67-4409-96f1-1e63cca1d889
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/2059
license https://www.usa.gov/government-works
modified 2026-04-13T22:16:01Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 9f83ae140c2bd6eeee9156a150f2fdc412b17a97a508bd4497dcb457640f5197
source_schema_version 1.1
spatial [[{"WestBoundingCoordinate":-128.03,"NorthBoundingCoordinate":51.68,"EastBoundingCoordinate":-65.2,"SouthBoundingCoordinate":22.69}],"CARTESIAN"]
temporal 1986-01-01/2015-12-31
theme {"Earth Science"}