Thomas Loveland (Former Employee)
Science and Products
Filter Total Items: 138
The consequences of landscape change on ecological resources: An assessment of the United States mid-Atlantic region, 1973-1993
Spatially explicit identification of changes in ecological conditions over large areas is key to targeting and prioritizing areas for environmental protection and restoration by managers at watershed, basin, and regional scales. A critical limitation to this point has been the development of methods to conduct such broad-scale assessments. Field-based methods have proven to be too costly and too i
Authors
K. Bruce Jones, Anne Neale, Timothy G. Wade, James D. Wickham, Chad L. Cross, Curtis M. Edmonds, Thomas R. Loveland, Nash Maliha, Kurt H. Riitters, Elizabeth R. Smith
The land cover trends project: A strategy for monitoring land cover change at a national scale
Policy-makers and scientists often require comprehensive data on the types and rates of land use and land cover change at a variety of scales. However, there is generally a lack of local, regional, and national land use and land cover data of sufficient reliability and temporal and geographic detail for providing accurate estimates of landscape change. The U.S. Geological Survey's EROS Data Center
Authors
Terry L. Sohl, Thomas Loveland, Kristi Sayler, Alisa L. Gallant, Roger F. Auch, Darrell E. Napton
The patterns and characteristics of global land cover
No abstract available.
Authors
Thomas R. Loveland
A new global 1-km dataset of percentage tree cover derived from remote sensing
Accurate assessment of the spatial extent of forest cover is a crucial requirement for quantifying the sources and sinks of carbon from the terrestrial biosphere. In the more immediate context of the United Nations Framework Convention on Climate Change, implementation of the Kyoto Protocol calls for estimates of carbon stocks for a baseline year as well as for subsequent years. Data sources from
Authors
R.S. DeFries, M.C. Hansen, J.R.G. Townshend, A.C. Janetos, Thomas R. Loveland
Development of a global land cover characteristics database and IGBP DISCover from 1 km AVHRR data
Researchers from the U.S. Geological Survey, University of Nebraska-Lincoln and the European Commission's Joint Research Centre, Ispra, Italy produced a 1 km resolution global land cover characteristics database for use in a wide range of continental-to global-scale environmental studies. This database provides a unique view of the broad patterns of the biogeographical and ecoclimatic diversity of
Authors
Thomas R. Loveland, B. C. Reed, Jesslyn F. Brown, D.O. Ohlen, Z. Zhu, L. Yang, J.W. Merchant
The way forward
This paper focuses on the lessons hearned in the conduct of the lnternational Geosphere Biosphere Program's Data and Information System (rcnr-nts), global 1-km Land-Cover Mapping Project (n$cover). There is stiLL considerable fundamental research to be conducted dealing with the development and validation of thematic geospatial products derived from a combination of remotely sensed and ancillary d
Authors
John Estes, Alan Belward, Thomas Loveland, Joseph Scepan, Alan H. Strahler, John B. Townshend, Chris Justice
Toward the use of remote sensing and other data to delineate functional types in terrestrial and aquatic systems
This chapter discusses the role that remotely sensed data play in improving the ability to document the distribution of global land cover types. If the relationships between the cover types and trace gas fluxes can be determined, then the dynamics of these fluxes can be established. The chapter discusses important aquatic systems—such as wetlands—and the land–water interface. Researchers have a wi
Authors
J. E. Estes, Thomas R. Loveland
Global land cover mapping and validation: Special issue, Foreword
No abstract available.
Authors
Thomas R. Loveland, J. E. Estes, Joseph Scepan
The Global Land-Cover Characteristics Database: The users' perspective
A unique global land-cover characteristics database developed by the U.S. Geological Survey has been available to users since mid-1997. Access to the data is through the internet under the EROS (Earth Resources Observation Systems) Data Center's home page (http://edcwww.cr.usgs.gov/landdaac/glcc/glcc.html). Since the release of the database, the data have been incorporated into various environment
Authors
Jesslyn F. Brown, Thomas R. Loveland, Donald O. Ohlen, Zhi-Liang Zhu
An analysis of IGBP global land-cover characterization process
The international Geosphere Biosphere Programme (IGBP) has called for the development of improved global land-cover data for use in increasingly sophisticated global environmental models. To meet this need, the staff of the U.S. Geological Survey and the University of Nebraska-Lincoln developed and applied a global land-cover characterization methodology using 1992-1993 1-km resolution Advanced Ve
Authors
Thomas R. Loveland, Zhiliang Zhu, Donald O. Ohlen, Jesslyn F. Brown, Bradley C. Reed, Limin Yang
Land cover characterization and land surface parameterization research
The understanding of land surface processes and their parameterization in atmospheric, hydrologic, and ecosystem models has been a dominant research theme over the past decade. For example, many studies have demonstrated the key role of land cover characteristics as controlling factors in determining land surface processes, such as the exchange of water, energy, carbon, and trace gases between the
Authors
Louis T. Steyaert, Thomas R. Loveland, William J. Parton
The IGBP-DIS global 1km land cover data set, DISCover: First results
The International Geosphere-Biosphere Programme Data and Information System (IGBP-DIS) is co-ordinating the development of global land data sets from Advanced Very High Resolution Radiometer (AVHRR) data. The first is a 1 km spatial resolution land cover product 'DISCover', based on monthly Normalized Difference Vegetation Index composites from 1992 and 1993. DISCover is a 17 class land cover data
Authors
Thomas R. Loveland, A.S. Belward
Science and Products
Filter Total Items: 138
The consequences of landscape change on ecological resources: An assessment of the United States mid-Atlantic region, 1973-1993
Spatially explicit identification of changes in ecological conditions over large areas is key to targeting and prioritizing areas for environmental protection and restoration by managers at watershed, basin, and regional scales. A critical limitation to this point has been the development of methods to conduct such broad-scale assessments. Field-based methods have proven to be too costly and too i
Authors
K. Bruce Jones, Anne Neale, Timothy G. Wade, James D. Wickham, Chad L. Cross, Curtis M. Edmonds, Thomas R. Loveland, Nash Maliha, Kurt H. Riitters, Elizabeth R. Smith
The land cover trends project: A strategy for monitoring land cover change at a national scale
Policy-makers and scientists often require comprehensive data on the types and rates of land use and land cover change at a variety of scales. However, there is generally a lack of local, regional, and national land use and land cover data of sufficient reliability and temporal and geographic detail for providing accurate estimates of landscape change. The U.S. Geological Survey's EROS Data Center
Authors
Terry L. Sohl, Thomas Loveland, Kristi Sayler, Alisa L. Gallant, Roger F. Auch, Darrell E. Napton
The patterns and characteristics of global land cover
No abstract available.
Authors
Thomas R. Loveland
A new global 1-km dataset of percentage tree cover derived from remote sensing
Accurate assessment of the spatial extent of forest cover is a crucial requirement for quantifying the sources and sinks of carbon from the terrestrial biosphere. In the more immediate context of the United Nations Framework Convention on Climate Change, implementation of the Kyoto Protocol calls for estimates of carbon stocks for a baseline year as well as for subsequent years. Data sources from
Authors
R.S. DeFries, M.C. Hansen, J.R.G. Townshend, A.C. Janetos, Thomas R. Loveland
Development of a global land cover characteristics database and IGBP DISCover from 1 km AVHRR data
Researchers from the U.S. Geological Survey, University of Nebraska-Lincoln and the European Commission's Joint Research Centre, Ispra, Italy produced a 1 km resolution global land cover characteristics database for use in a wide range of continental-to global-scale environmental studies. This database provides a unique view of the broad patterns of the biogeographical and ecoclimatic diversity of
Authors
Thomas R. Loveland, B. C. Reed, Jesslyn F. Brown, D.O. Ohlen, Z. Zhu, L. Yang, J.W. Merchant
The way forward
This paper focuses on the lessons hearned in the conduct of the lnternational Geosphere Biosphere Program's Data and Information System (rcnr-nts), global 1-km Land-Cover Mapping Project (n$cover). There is stiLL considerable fundamental research to be conducted dealing with the development and validation of thematic geospatial products derived from a combination of remotely sensed and ancillary d
Authors
John Estes, Alan Belward, Thomas Loveland, Joseph Scepan, Alan H. Strahler, John B. Townshend, Chris Justice
Toward the use of remote sensing and other data to delineate functional types in terrestrial and aquatic systems
This chapter discusses the role that remotely sensed data play in improving the ability to document the distribution of global land cover types. If the relationships between the cover types and trace gas fluxes can be determined, then the dynamics of these fluxes can be established. The chapter discusses important aquatic systems—such as wetlands—and the land–water interface. Researchers have a wi
Authors
J. E. Estes, Thomas R. Loveland
Global land cover mapping and validation: Special issue, Foreword
No abstract available.
Authors
Thomas R. Loveland, J. E. Estes, Joseph Scepan
The Global Land-Cover Characteristics Database: The users' perspective
A unique global land-cover characteristics database developed by the U.S. Geological Survey has been available to users since mid-1997. Access to the data is through the internet under the EROS (Earth Resources Observation Systems) Data Center's home page (http://edcwww.cr.usgs.gov/landdaac/glcc/glcc.html). Since the release of the database, the data have been incorporated into various environment
Authors
Jesslyn F. Brown, Thomas R. Loveland, Donald O. Ohlen, Zhi-Liang Zhu
An analysis of IGBP global land-cover characterization process
The international Geosphere Biosphere Programme (IGBP) has called for the development of improved global land-cover data for use in increasingly sophisticated global environmental models. To meet this need, the staff of the U.S. Geological Survey and the University of Nebraska-Lincoln developed and applied a global land-cover characterization methodology using 1992-1993 1-km resolution Advanced Ve
Authors
Thomas R. Loveland, Zhiliang Zhu, Donald O. Ohlen, Jesslyn F. Brown, Bradley C. Reed, Limin Yang
Land cover characterization and land surface parameterization research
The understanding of land surface processes and their parameterization in atmospheric, hydrologic, and ecosystem models has been a dominant research theme over the past decade. For example, many studies have demonstrated the key role of land cover characteristics as controlling factors in determining land surface processes, such as the exchange of water, energy, carbon, and trace gases between the
Authors
Louis T. Steyaert, Thomas R. Loveland, William J. Parton
The IGBP-DIS global 1km land cover data set, DISCover: First results
The International Geosphere-Biosphere Programme Data and Information System (IGBP-DIS) is co-ordinating the development of global land data sets from Advanced Very High Resolution Radiometer (AVHRR) data. The first is a 1 km spatial resolution land cover product 'DISCover', based on monthly Normalized Difference Vegetation Index composites from 1992 and 1993. DISCover is a 17 class land cover data
Authors
Thomas R. Loveland, A.S. Belward