EPA Science Inventory

IMPLEMENTATION STRATEGY FOR PRODUCTION OF NATIONAL LAND-COVER DATA (NLCD) FROM THE LANDSAT 7 THEMATIC MAPPER SATELLITE

Citation:

Vogelmann, J. E. AND J. D. Wickham. IMPLEMENTATION STRATEGY FOR PRODUCTION OF NATIONAL LAND-COVER DATA (NLCD) FROM THE LANDSAT 7 THEMATIC MAPPER SATELLITE. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-00/051 (NTIS PB2001-101756), 2000.

Description:

As environmental programs within and outside the federal government continue to move away from point-based studies to larger and larger spatial (not cartographic) scale, the need for land-cover and other geographic data have become ineluctable. The national land-cover mapping project of MRLC marks the first consistently classified conterminous land-0cover data set, effectively replacing USGS' Land Use Data Analysis (LUDA) system derived from high altitude aerial photography acquired in the early 1970's. Because of the continually changing nature of the earth's surface due to anthropogenic activities and other factors, a single point-in-time land-cover product is insufficient for many applications. Production of a second point-in-time land-cover product is proposed as a database.

The proposed database design includes: 1) a second, independently classified land-cover data set derived from Landsat 7 Thematic Mapper data, 2) the land-cover product being produced under the current effort, 3) selected spectral-based change estimates (e.g., temporal NDVI), 4) thirty-meter DEMS, and 5) selected landscape metrics. Development of the database for the conterminous United States will start after evaluation of the prototype

Purpose/Objective:

Our research objectives are to: (a) develop new methods using satellite remote sensor data for the rapid characterization of LC condition and change at regional to national scales; (b) evaluate the utility of the new NASA-EOS MODIS (Moderate Resolution Imaging Spectrometer) leaf area index (LAI) measurements for regional scale application with landscape process models (e.g., biogenic emissions and atmospheric deposition); (c) provide remote sensor derived measurement data to advance the development of the next generation of distributed landscape process-based models to provide a predictive modeling capability for important ecosystem processes (e.g., nutrients, sedimentation, pathogens, etc.); and (d) integrate in situ monitoring measurement networks with UAV and satellite based remote sensor data to provide a continuous environmental monitoring capability.

Record Details:

Record Type: DOCUMENT (PUBLISHED REPORT/REPORT)
Start Date: 07/13/2000
Completion Date: 07/13/2000
Record Last Revised: 12/22/2005
Record Created: 09/26/2003
Record Released: 09/26/2003
Record ID: 63226

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL EXPOSURE RESEARCH LAB

ENVIRONMENTAL SCIENCES DIVISION

LANDSCAPE CHARACTERIZATION BRANCH (RTP)