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

Metadata Updated: December 6, 2023

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.

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

Dates

Metadata Created Date April 27, 2023
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Forest disturbance intensity 1986 - 2015. This time-integrated map represents the percentage of basal area removal (PBAR) value, regardless of the disturbance year, for pixel locations where only one disturbance event was detected. The maximum PBAR is shown for locations that were disturbed multiple times.

Additional Metadata

Resource Type Dataset
Metadata Created Date April 27, 2023
Metadata Updated Date December 6, 2023
Publisher ORNL_DAAC
Maintainer
Identifier C2642587660-ORNL_CLOUD
Data First Published 2023-03-24
Language en-US
Data Last Modified 2023-06-12
Category NACP, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Citation Lu, J., C. Huang, X. Tao, and K. Schleeweis. 2023. NACP NAFD Project: Forest Disturbance Intensity for CONUS from Landsat, 1986-2015. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/2059
Graphic Preview Description Forest disturbance intensity 1986 - 2015. This time-integrated map represents the percentage of basal area removal (PBAR) value, regardless of the disturbance year, for pixel locations where only one disturbance event was detected. The maximum PBAR is shown for locations that were disturbed multiple times.
Graphic Preview File https://daac.ornl.gov/NACP/guides/Forest_Disturbance_Intensity_Fig1.png
Harvest Object Id dfe5f6f2-c3ca-40ba-bfbb-cb21ad5ad815
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://doi.org/10.3334/ORNLDAAC/2059
Metadata Type geospatial
Old Spatial -128.03 22.69 -65.2 51.68
Program Code 026:001
Source Datajson Identifier True
Source Hash 5d586cfbe5cf88a8d78d55c675843f8630b5e4080973f3afde00b115dbf8f49a
Source Schema Version 1.1
Spatial
Temporal 1986-01-01T00:00:00Z/2015-12-31T23:59:59Z

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