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NACP North American Forest Dynamics Project: Forest Disturbance and Regrowth Data

Metadata Updated: December 7, 2023

This data set provides the results of time-series analyses of Landsat imagery for 55 selected forested sites across the conterminous U.S.A. The output is a pair of disturbance data products for each site, one showing the first year of disturbance in the time series, the other showing the last year of disturbance. Each data pixel is labeled as either a static land class (persistent non-forest, persistent forest, or persistent water) or with the year of change for disturbed forest pixels. The time period analyzed is approximately 1984-2009.These forest disturbance data are distributed as a single band GeoTiff, with appropriate projection information defined within the file. The analyses were performed in three phases: 5 sites during the Prototype/Focal phase; 23 sites in Phase I; and 27 sites in Phase II. The spatial resolution of the Prototype/Focal and Phase I data is 28.5 meters. The spatial resolution of the Phase II data is 30 meters. The temporal resolution is nominally biennial. The mapped area for each forested site is approximately 185 km x 185 km. There are a total of 110 GeoTiff files - a first year and a last year disturbance file for each of the 55 sites.

Access & Use Information

Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources


Metadata Created Date April 27, 2023
Metadata Updated Date December 7, 2023

Metadata Source

Harvested from NASA Data.json

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Additional Metadata

Resource Type Dataset
Metadata Created Date April 27, 2023
Metadata Updated Date December 7, 2023
Publisher ORNL_DAAC
Identifier C2631224569-ORNL_CLOUD
Data First Published 2022-11-29
Language en-US
Data Last Modified 2023-06-12
Category NACP, geospatial
Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff "Ecosystem Vulnerability","Land Cover and Land Use"
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Citation Goward, S.N., C. Huang, J.G. Masek, W.B. Cohen, G.G. Moisen, and K. Schleeweis. 2012. NACP North American Forest Dynamics Project: Forest Disturbance and Regrowth Data. ORNL DAAC, Oak Ridge, Tennessee, USA.
Graphic Preview Description Browse Image
Graphic Preview File
Harvest Object Id 4d977187-ba0f-4fcd-9c0b-8051a446fd5f
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -126.46 26.52 -67.96 49.79
Program Code 026:001
Source Datajson Identifier True
Source Hash bbf3f56211d84437bd7de8c0af98ebdcd7b28ea6ee1abe4d3ccdd654814749a4
Source Schema Version 1.1
Temporal 1984-06-04T00:00:00Z/2009-09-16T23:59:59Z

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