GEOGRAPHIC INFORMATION

Classified Landsat Thematic Mapper Data, U.S. Forest Service Northern Region, 1992

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Data Provider University of Montana Wildlife Spatial Analysis Laboratory
Date 07/06/1991 - 09/25/1993
Content Type Offline Data
Abstract The Wildlife Spatial Analysis Lab produced several raster data sets based on 18 Landsat Thematic Mapper scenes imaged between July 6, 1991 and September 25, 1993. The images were classifed and merged into single raster datasets that cover northern Idaho, western Montana, and Yellowstone National Park. This area is approximately equivalent to the U.S. Forest Service's Northern Region (Region One). The themes created were land cover, canopy closure, lifeform type, and tree size or shrub size. The minimum mapping unit for these scenes was 2 hectares, or approximately 5 acres. A data set is included to identify riparian vegetation in stream valleys, with no minumum mapping unit.The lab published an executive summary and a in-depth report on the project and its result. These are included with the data archive and they are available at at https://ftpgeoinfo.msl.mt.gov/Documents/Metadata/SILC_1_Summary.pdf and https://ftpgeoinfo.msl.mt.gov/Documents/Metadata/SILC_1_Report.pdf.
Purpose This data was produced for the U.S. Forest Service Northern Region to map existing vegetation and land cover in a standardized, consistent manner across Northern Idaho and Western Montana. By providing an integrated GIS database, users can query and process information contained in many layers in a cost-efficient manner and at a controlled level of accuracy. The results provide a powerful tool for the Forest Service and other land management agencies to examine vegetation patterns across large areas of mixed ownerships and to conduct the following types of analyses and applications: broadscale assessment and planning efforts, such as the Columbia River Basin project; revision of National Forest Plans (Analysis of the Management Situation, cumulative effects and trade-off analyses, existing condition, alternative development) identification of land management projects that will achieve the ultimate goals of producing goods and services for people within the sustainable capacity of ecosystems monitoring trends in existing vegetation and evaluating whether land management activities have had desired effects.
Supplemental Information
The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Distributor Montana State Library
PO Box 201800
Helena, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY: Montana Relay 711
Fax: 406-444-0266
Email: geoinfo@mt.gov
Distribution liability The Montana State Library Geographic Information Services provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
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Metadata date 06/08/2015