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Land Cover Trends: Rates, Causes, and Consequences of Late-Twentieth Century U.S. Land Cover Change
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Principal Investigator: Thomas R. Loveland, US Geological Survey, EROS
Data Center
Co-Investigators: Terry Sohl, Kristi Sayler, Alisa Gallant, John
Dwyer, James Vogelmann, Gregory Zylstra, Raytheon ITSS, Inc., EROS Data
Center
EPA Collaborators: Tim Wade and K. Bruce Jones, NERL/ESD/LEB
The objective of this project was to estimate the types and rates of land
cover change in the conterminous United States over the past 30 years.
The analysis of change was based on Omernik ecoregion using five dates
of Landsat MSS and TM data (nominally 1973, 1980, 1986, 1992, and 2000),
and is complete for 18 ecoregions. Land cover change was estimated for
each ecoregion based on randomly selected 10 km by 10 km or 20 km by 20
km blocks within the ecoregion with a goal of identifying 1% change in
general land cover within each ecoregion at an 85% confidence level.
- EPA/600/R-99/105, June 1999. Land Cover Trends: Rates, Causes, and
Consequences of Late-Twentieth Century U.S. Land Cover Change.
[Note: The posted report is the original research plan. The actual research was modified as needed due to budget and other considerations during the course of analysis. Final results for 18 ecoregions are described on this site. As additional ecoregions are completed, the site will be updated.]
Source data and results by ecoregion - This page contains links to the data as well as the maps, photos, and descriptions of the 18 ecoregions.
Publications - This page lists citations related to this project.