Wildfire Suppression Difficulty Index (Map Service)

Metadata Updated: December 3, 2020

Wildfire Suppression Difficulty Index (terrestrial) (SDIt) is a quantitative rating of relative difficulty in performing fire control work. In its original formulation for use in Spain, SDI included aerial resource use, however for development and application in the United States we removed the aerial resource component due to a lack of consistent data. We note this distinction of “terrestrial only” calculations with the inclusion of “t” in the acronym. SDIt factors in topography, fuels, expected fire behavior under severe fire weather conditions, firefighter line production rates in various fuel types, and accessibility (distance from roads/trails) to assess relative suppression effort. For this dataset severe fire behavior is modeled with 15 mph up-slope winds and fully cured fuels. SDI has a continuous value distribution from 1-10. Here it is binned to six classes from lowest to highest difficulty.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources


Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020
Publisher U.S. Forest Service
Unique Identifier Unknown
Identifier https://data-usfs.hub.arcgis.com/datasets/c1a6c9ba51b849178dc9e1265cd60c90
Data First Published 2020-05-26
Data Last Modified 2020-09-02
Category geospatial
Public Access Level public
Bureau Code 005:96
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://data-usfs.hub.arcgis.com/datasets/c1a6c9ba51b849178dc9e1265cd60c90
License https://data-usfs.hub.arcgis.com/datasets/c1a6c9ba51b849178dc9e1265cd60c90/license.json
Metadata Type geospatial
Program Code 005:059
Source Datajson Identifier True
Source Hash 919dc1b541624a52ba19fa57643be3881c5a58ee
Source Schema Version 1.1
Spatial -131.362,6.898,-65.638,72.622

Didn't find what you're looking for? Suggest a dataset here.