Nancy Baker (Former Employee)
Science and Products
Filter Total Items: 39
Environmental factors that influence the location of crop agriculture in the conterminous United States Environmental factors that influence the location of crop agriculture in the conterminous United States
This report presents and describes high-resolution geospatial data identifying the range of environmental conditions that influence the location of cropped agricultural lands in the conterminous United States. Also presented are estimates of the extent of land where environmental constraints limit agricultural production (marginal land) and the extents of land where modifications...
Authors
Nancy T. Baker, Paul D. Capel
Tillage practices in the conterminous United States, 1989-2004: Datasets aggregated by watershed Tillage practices in the conterminous United States, 1989-2004: Datasets aggregated by watershed
This report documents the methods used to aggregate county-level tillage practices to the 8-digit hydrologic unit (HU) watershed. The original county-level data were collected by the Conservation Technology Information Center (CTIC). The CTIC collects tillage data by conducting surveys about tillage systems for all counties in the United States. Tillage systems include three types of...
Authors
Nancy T. Baker
Mercury in Indiana watersheds: Retrospective for 2001–2006 Mercury in Indiana watersheds: Retrospective for 2001–2006
Information about total mercury and methylmercury concentrations in water samples and mercury concentrations in fish-tissue samples was summarized for 26 watersheds in Indiana that drain most of the land area of the State. Mercury levels were interpreted with information on streamflow, atmospheric mercury deposition, mercury emissions to the atmosphere, mercury in wastewater, and...
Authors
Martin R. Risch, Nancy T. Baker, Kathleen K. Fowler, Amanda L. Egler, David C. Lampe
Methods and sources of data used to develop selected water-quality indicators for streams and ground water for EPA's 2007 Report on the Environment: Science report Methods and sources of data used to develop selected water-quality indicators for streams and ground water for EPA's 2007 Report on the Environment: Science report
The U.S. Geological Survey (USGS) was one of numerous governmental agencies, private organizations, and the academic community that provided data and interpretations for the U.S. Environmental Protection Agency’s (USEPA) 2007 Report on the Environment: Science Report. This report documents the sources of data and methods used to develop selected water–quality indicators for the 2007...
Authors
Nancy T. Baker, John T. Wilson, Michael J. Moran
Methods and Sources of Data Used to Develop Selected Water-Quality Indicators for Streams and Ground Water for the 2007 Edition of The State of the Nation's Ecosystems Report with Comparisons to the 2002 Edition Methods and Sources of Data Used to Develop Selected Water-Quality Indicators for Streams and Ground Water for the 2007 Edition of The State of the Nation's Ecosystems Report with Comparisons to the 2002 Edition
The U.S. Geological Survey (USGS) was one of numerous governmental, private, and academic entities that provided input to the report The State of the Nation?s Ecosystems published periodically by the Heinz Center. This report describes the sources of data and methods used by the USGS to develop selected water?quality indicators for the 2007 edition of the Heinz Center report and...
Authors
John T. Wilson, Nancy T. Baker, Michael J. Moran, Charles G. Crawford, Lisa H. Nowell, Patricia L. Toccalino, William G. Wilber
Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA
Agricultural chemical transport to surface water and the linkage to other hydrological compartments, principally ground water, was investigated at five watersheds in semiarid to humid climatic settings. Chemical transport was affected by storm water runoff, soil drainage, irrigation, and how streams were linked to shallow ground water systems. Irrigation practices and timing of chemical...
Authors
Joseph L. Domagalski, S. Ator, R. Coupe, K. McCarthy, D. Lampe, Mark W. Sandstrom, N. Baker
Non-USGS Publications**
Baker, N.T., 1996, Use of a global positioning system and an acoustic doppler current profiler to map river and lake bathymetery: Published in Hallam, C.A., Salisbury, J.M., Lanfear, K.J., and Battaglin, W.A., eds., Proceedings of the American Water Resources Association Annual Symposium--Geographic Information Systems and Water Resources: Herndon, Virginia, American Water Resources Association, Technical Publication Series 96-3, p. 373-381.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 39
Environmental factors that influence the location of crop agriculture in the conterminous United States Environmental factors that influence the location of crop agriculture in the conterminous United States
This report presents and describes high-resolution geospatial data identifying the range of environmental conditions that influence the location of cropped agricultural lands in the conterminous United States. Also presented are estimates of the extent of land where environmental constraints limit agricultural production (marginal land) and the extents of land where modifications...
Authors
Nancy T. Baker, Paul D. Capel
Tillage practices in the conterminous United States, 1989-2004: Datasets aggregated by watershed Tillage practices in the conterminous United States, 1989-2004: Datasets aggregated by watershed
This report documents the methods used to aggregate county-level tillage practices to the 8-digit hydrologic unit (HU) watershed. The original county-level data were collected by the Conservation Technology Information Center (CTIC). The CTIC collects tillage data by conducting surveys about tillage systems for all counties in the United States. Tillage systems include three types of...
Authors
Nancy T. Baker
Mercury in Indiana watersheds: Retrospective for 2001–2006 Mercury in Indiana watersheds: Retrospective for 2001–2006
Information about total mercury and methylmercury concentrations in water samples and mercury concentrations in fish-tissue samples was summarized for 26 watersheds in Indiana that drain most of the land area of the State. Mercury levels were interpreted with information on streamflow, atmospheric mercury deposition, mercury emissions to the atmosphere, mercury in wastewater, and...
Authors
Martin R. Risch, Nancy T. Baker, Kathleen K. Fowler, Amanda L. Egler, David C. Lampe
Methods and sources of data used to develop selected water-quality indicators for streams and ground water for EPA's 2007 Report on the Environment: Science report Methods and sources of data used to develop selected water-quality indicators for streams and ground water for EPA's 2007 Report on the Environment: Science report
The U.S. Geological Survey (USGS) was one of numerous governmental agencies, private organizations, and the academic community that provided data and interpretations for the U.S. Environmental Protection Agency’s (USEPA) 2007 Report on the Environment: Science Report. This report documents the sources of data and methods used to develop selected water–quality indicators for the 2007...
Authors
Nancy T. Baker, John T. Wilson, Michael J. Moran
Methods and Sources of Data Used to Develop Selected Water-Quality Indicators for Streams and Ground Water for the 2007 Edition of The State of the Nation's Ecosystems Report with Comparisons to the 2002 Edition Methods and Sources of Data Used to Develop Selected Water-Quality Indicators for Streams and Ground Water for the 2007 Edition of The State of the Nation's Ecosystems Report with Comparisons to the 2002 Edition
The U.S. Geological Survey (USGS) was one of numerous governmental, private, and academic entities that provided input to the report The State of the Nation?s Ecosystems published periodically by the Heinz Center. This report describes the sources of data and methods used by the USGS to develop selected water?quality indicators for the 2007 edition of the Heinz Center report and...
Authors
John T. Wilson, Nancy T. Baker, Michael J. Moran, Charles G. Crawford, Lisa H. Nowell, Patricia L. Toccalino, William G. Wilber
Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA Comparative study of transport processes of nitrogen, phosphorus, and herbicides to streams in five agricultural basins, USA
Agricultural chemical transport to surface water and the linkage to other hydrological compartments, principally ground water, was investigated at five watersheds in semiarid to humid climatic settings. Chemical transport was affected by storm water runoff, soil drainage, irrigation, and how streams were linked to shallow ground water systems. Irrigation practices and timing of chemical...
Authors
Joseph L. Domagalski, S. Ator, R. Coupe, K. McCarthy, D. Lampe, Mark W. Sandstrom, N. Baker
Non-USGS Publications**
Baker, N.T., 1996, Use of a global positioning system and an acoustic doppler current profiler to map river and lake bathymetery: Published in Hallam, C.A., Salisbury, J.M., Lanfear, K.J., and Battaglin, W.A., eds., Proceedings of the American Water Resources Association Annual Symposium--Geographic Information Systems and Water Resources: Herndon, Virginia, American Water Resources Association, Technical Publication Series 96-3, p. 373-381.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.