Claudia C. Faunt (Former Employee)
Science and Products
Filter Total Items: 69
Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley
Aquifer overexploitation could significantly impact crop production in the United States because 60% of irrigation relies on groundwater. Groundwater depletion in the irrigated High Plains and California Central Valley accounts for ∼50% of groundwater depletion in the United States since 1900. A newly developed High Plains recharge map shows that high recharge in the northern High Plains...
Authors
Bridget R. Scanlon, Claudia C. Faunt, Laurent Longuevergne, Robert C. Reedy, William M. Alley, Virginia L. McGuire, Peter B. McMahon
Hydrogeology, water chemistry, and transport processes in the zone of contribution of a public-supply well in Albuquerque, New Mexico, 2007-9 Hydrogeology, water chemistry, and transport processes in the zone of contribution of a public-supply well in Albuquerque, New Mexico, 2007-9
The National Water-Quality Assessment Program (NAWQA) of the U.S. Geological Survey began a series of groundwater studies in 2001 in representative aquifers across the Nation in order to increase understanding of the factors that affect transport of anthropogenic and natural contaminants (TANC) to public-supply wells. One of 10 regional-scale TANC studies was conducted in the Middle Rio...
Authors
Laura M. Bexfield, Bryant C. Jurgens, Dianna M. Crilley, Scott C. Christenson
A method for physically based model analysis of conjunctive use in response to potential climate changes A method for physically based model analysis of conjunctive use in response to potential climate changes
Potential climate change effects on aspects of conjunctive management of water resources can be evaluated by linking climate models with fully integrated groundwater-surface water models. The objective of this study is to develop a modeling system that links global climate models with regional hydrologic models, using the California Central Valley as a case study. The new method is a...
Authors
R. T. Hanson, L. E. Flint, A. L. Flint, M. D. Dettinger, C.C. Faunt, D. Cayan, W. Schmid
Planned updates and refinements to the Central Valley hydrologic model with an emphasis on improving the simulation of land subsidence in the San Joaquin Valley Planned updates and refinements to the Central Valley hydrologic model with an emphasis on improving the simulation of land subsidence in the San Joaquin Valley
California's Central Valley has been one of the most productive agricultural regions in the world for more than 50 years. To better understand the groundwater availability in the valley, the U.S. Geological Survey (USGS) developed the Central Valley hydrologic model (CVHM). Because of recent water-level declines and renewed subsidence, the CVHM is being updated to better simulate the...
Authors
Claudia C. Faunt, Randall T. Hanson, Peter Martin, Wolfgang Schmid
Comment on “An unconfined groundwater model of the Death Valley Regional Flow System and a comparison to its confined predecessor” by R.W.H. Carroll, G.M. Pohll and R.L. Hershey [Journal of Hydrology 373/3–4, pp. 316–328] Comment on “An unconfined groundwater model of the Death Valley Regional Flow System and a comparison to its confined predecessor” by R.W.H. Carroll, G.M. Pohll and R.L. Hershey [Journal of Hydrology 373/3–4, pp. 316–328]
Carroll et al. (2009) state that the United States Geological Survey (USGS) Death Valley Regional Flow System (DVRFS) model, which is based on MODFLOW, is “conceptually inaccurate in that it models an unconfined aquifer as a confined system and does not simulate unconfined drawdown in transient pumping simulations.” Carroll et al. (2009) claim that “more realistic estimates of water...
Authors
Claudia C. Faunt, Alden M. Provost, Mary C. Hill, Wayne R. Belcher
Integrated simulation of consumptive use and land subsidence in the Central Valley, California, for the past and for a future subject to urbanization and climate change Integrated simulation of consumptive use and land subsidence in the Central Valley, California, for the past and for a future subject to urbanization and climate change
Competition for water resources is growing throughout California, particularly in the Central Valley where about 20% of all groundwater used in the United States is consumed for agriculture and urban water supply. Continued agricultural use coupled with urban growth and potential climate change would result in continued depletion of groundwater storage and associated land subsidence...
Authors
Randall T. Hanson, Alan L. Flint, Claudia C. Faunt, Daniel R. Cayan, Lorraine E. Flint, Stanley A. Leake, Wolfgang Schmid
Death Valley regional groundwater flow system, Nevada and California: Hydrogeologic framework and transient groundwater flow model Death Valley regional groundwater flow system, Nevada and California: Hydrogeologic framework and transient groundwater flow model
A numerical three-dimensional (3D) transient groundwater flow model of the Death Valley region was developed by the U.S. Geological Survey for the U.S. Department of Energy programs at the Nevada Test Site and at Yucca Mountain, Nevada. Decades of study of aspects of the groundwater flow system and previous less extensive groundwater flow models were incorporated and reevaluated together...
Authors
Wayne Belcher, Frank A. D’Agnese, Grady M. O’Brien, Donald S. Sweetkind, Carma A. San Juan, Randell J. Laczniak, Christopher J. Potter, Heather Putnam, Claudia C. Faunt, Joan B. Blainey, Mary C. Hill, M. S. Bedinger, J. R. Harrill
Development of a three-dimensional model of sedimentary texture in valley-fill deposits of Central Valley, California, USA Development of a three-dimensional model of sedimentary texture in valley-fill deposits of Central Valley, California, USA
A three-dimensional (3D) texture model was developed to help characterize the aquifer system of Central Valley, California (USA), for a groundwater flow model. The 52,000-km2 Central Valley aquifer system consists of heterogeneous valley-fill deposits. The texture model was developed by compiling and analyzing approximately 8,500 drillers’ logs, describing lithologies up to 950 m below...
Authors
Claudia C. Faunt, Kenneth Belitz, Randall T. Hanson
Use of geochemical, isotopic, and age tracer data to develop models of groundwater flow for the purpose of water management, northern High Plains aquifer, USA Use of geochemical, isotopic, and age tracer data to develop models of groundwater flow for the purpose of water management, northern High Plains aquifer, USA
A prolonged drought in the High Plains of Nebraska prompted the use of groundwater for cooling at the largest coal-fired power plant in the State. Prior to the drought, groundwater was used primarily for irrigation and the power plant relied exclusively on surface water stored in a nearby reservoir for cooling. Seepage from the reservoir system during the past ∼75 a has resulted in the...
Authors
Peter B. McMahon, C. P. Carney, E. P. Poeter, Steven M. Peterson
Simulation and analysis of conjunctive use with MODFLOW's farm process Simulation and analysis of conjunctive use with MODFLOW's farm process
The extension of MODFLOW onto the landscape with the Farm Process (MF-FMP) facilitates fully coupled simulation of the use and movement of water from precipitation, streamflow and runoff, groundwater flow, and consumption by natural and agricultural vegetation throughout the hydrologic system at all times. This allows for more complete analysis of conjunctive use water-resource systems...
Authors
R. T. Hanson, W. Schmid, C.C. Faunt, B. Lockwood
California's Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California's Central Valley California's Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California's Central Valley
Competition for water resources is growing throughout California, particularly in the Central Valley. Since 1980, the Central Valley's population has nearly doubled to 3.8 million people. It is expected to increase to 6 million by 2020. Statewide population growth, anticipated reductions in Colorado River water deliveries, drought, and the ecological crisis in the Sacramento-San Joaquin...
Authors
Claudia C. Faunt, Randall T. Hanson, Kenneth Belitz, Laurel Rogers
Groundwater availability of the Central Valley Aquifer, California Groundwater availability of the Central Valley Aquifer, California
California's Central Valley covers about 20,000 square miles and is one of the most productive agricultural regions in the world. More than 250 different crops are grown in the Central Valley with an estimated value of $17 billion per year. This irrigated agriculture relies heavily on surface-water diversions and groundwater pumpage. Approximately one-sixth of the Nation's irrigated land...
Science and Products
Filter Total Items: 69
Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley Groundwater depletion and sustainability of irrigation in the US High Plains and Central Valley
Aquifer overexploitation could significantly impact crop production in the United States because 60% of irrigation relies on groundwater. Groundwater depletion in the irrigated High Plains and California Central Valley accounts for ∼50% of groundwater depletion in the United States since 1900. A newly developed High Plains recharge map shows that high recharge in the northern High Plains...
Authors
Bridget R. Scanlon, Claudia C. Faunt, Laurent Longuevergne, Robert C. Reedy, William M. Alley, Virginia L. McGuire, Peter B. McMahon
Hydrogeology, water chemistry, and transport processes in the zone of contribution of a public-supply well in Albuquerque, New Mexico, 2007-9 Hydrogeology, water chemistry, and transport processes in the zone of contribution of a public-supply well in Albuquerque, New Mexico, 2007-9
The National Water-Quality Assessment Program (NAWQA) of the U.S. Geological Survey began a series of groundwater studies in 2001 in representative aquifers across the Nation in order to increase understanding of the factors that affect transport of anthropogenic and natural contaminants (TANC) to public-supply wells. One of 10 regional-scale TANC studies was conducted in the Middle Rio...
Authors
Laura M. Bexfield, Bryant C. Jurgens, Dianna M. Crilley, Scott C. Christenson
A method for physically based model analysis of conjunctive use in response to potential climate changes A method for physically based model analysis of conjunctive use in response to potential climate changes
Potential climate change effects on aspects of conjunctive management of water resources can be evaluated by linking climate models with fully integrated groundwater-surface water models. The objective of this study is to develop a modeling system that links global climate models with regional hydrologic models, using the California Central Valley as a case study. The new method is a...
Authors
R. T. Hanson, L. E. Flint, A. L. Flint, M. D. Dettinger, C.C. Faunt, D. Cayan, W. Schmid
Planned updates and refinements to the Central Valley hydrologic model with an emphasis on improving the simulation of land subsidence in the San Joaquin Valley Planned updates and refinements to the Central Valley hydrologic model with an emphasis on improving the simulation of land subsidence in the San Joaquin Valley
California's Central Valley has been one of the most productive agricultural regions in the world for more than 50 years. To better understand the groundwater availability in the valley, the U.S. Geological Survey (USGS) developed the Central Valley hydrologic model (CVHM). Because of recent water-level declines and renewed subsidence, the CVHM is being updated to better simulate the...
Authors
Claudia C. Faunt, Randall T. Hanson, Peter Martin, Wolfgang Schmid
Comment on “An unconfined groundwater model of the Death Valley Regional Flow System and a comparison to its confined predecessor” by R.W.H. Carroll, G.M. Pohll and R.L. Hershey [Journal of Hydrology 373/3–4, pp. 316–328] Comment on “An unconfined groundwater model of the Death Valley Regional Flow System and a comparison to its confined predecessor” by R.W.H. Carroll, G.M. Pohll and R.L. Hershey [Journal of Hydrology 373/3–4, pp. 316–328]
Carroll et al. (2009) state that the United States Geological Survey (USGS) Death Valley Regional Flow System (DVRFS) model, which is based on MODFLOW, is “conceptually inaccurate in that it models an unconfined aquifer as a confined system and does not simulate unconfined drawdown in transient pumping simulations.” Carroll et al. (2009) claim that “more realistic estimates of water...
Authors
Claudia C. Faunt, Alden M. Provost, Mary C. Hill, Wayne R. Belcher
Integrated simulation of consumptive use and land subsidence in the Central Valley, California, for the past and for a future subject to urbanization and climate change Integrated simulation of consumptive use and land subsidence in the Central Valley, California, for the past and for a future subject to urbanization and climate change
Competition for water resources is growing throughout California, particularly in the Central Valley where about 20% of all groundwater used in the United States is consumed for agriculture and urban water supply. Continued agricultural use coupled with urban growth and potential climate change would result in continued depletion of groundwater storage and associated land subsidence...
Authors
Randall T. Hanson, Alan L. Flint, Claudia C. Faunt, Daniel R. Cayan, Lorraine E. Flint, Stanley A. Leake, Wolfgang Schmid
Death Valley regional groundwater flow system, Nevada and California: Hydrogeologic framework and transient groundwater flow model Death Valley regional groundwater flow system, Nevada and California: Hydrogeologic framework and transient groundwater flow model
A numerical three-dimensional (3D) transient groundwater flow model of the Death Valley region was developed by the U.S. Geological Survey for the U.S. Department of Energy programs at the Nevada Test Site and at Yucca Mountain, Nevada. Decades of study of aspects of the groundwater flow system and previous less extensive groundwater flow models were incorporated and reevaluated together...
Authors
Wayne Belcher, Frank A. D’Agnese, Grady M. O’Brien, Donald S. Sweetkind, Carma A. San Juan, Randell J. Laczniak, Christopher J. Potter, Heather Putnam, Claudia C. Faunt, Joan B. Blainey, Mary C. Hill, M. S. Bedinger, J. R. Harrill
Development of a three-dimensional model of sedimentary texture in valley-fill deposits of Central Valley, California, USA Development of a three-dimensional model of sedimentary texture in valley-fill deposits of Central Valley, California, USA
A three-dimensional (3D) texture model was developed to help characterize the aquifer system of Central Valley, California (USA), for a groundwater flow model. The 52,000-km2 Central Valley aquifer system consists of heterogeneous valley-fill deposits. The texture model was developed by compiling and analyzing approximately 8,500 drillers’ logs, describing lithologies up to 950 m below...
Authors
Claudia C. Faunt, Kenneth Belitz, Randall T. Hanson
Use of geochemical, isotopic, and age tracer data to develop models of groundwater flow for the purpose of water management, northern High Plains aquifer, USA Use of geochemical, isotopic, and age tracer data to develop models of groundwater flow for the purpose of water management, northern High Plains aquifer, USA
A prolonged drought in the High Plains of Nebraska prompted the use of groundwater for cooling at the largest coal-fired power plant in the State. Prior to the drought, groundwater was used primarily for irrigation and the power plant relied exclusively on surface water stored in a nearby reservoir for cooling. Seepage from the reservoir system during the past ∼75 a has resulted in the...
Authors
Peter B. McMahon, C. P. Carney, E. P. Poeter, Steven M. Peterson
Simulation and analysis of conjunctive use with MODFLOW's farm process Simulation and analysis of conjunctive use with MODFLOW's farm process
The extension of MODFLOW onto the landscape with the Farm Process (MF-FMP) facilitates fully coupled simulation of the use and movement of water from precipitation, streamflow and runoff, groundwater flow, and consumption by natural and agricultural vegetation throughout the hydrologic system at all times. This allows for more complete analysis of conjunctive use water-resource systems...
Authors
R. T. Hanson, W. Schmid, C.C. Faunt, B. Lockwood
California's Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California's Central Valley California's Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California's Central Valley
Competition for water resources is growing throughout California, particularly in the Central Valley. Since 1980, the Central Valley's population has nearly doubled to 3.8 million people. It is expected to increase to 6 million by 2020. Statewide population growth, anticipated reductions in Colorado River water deliveries, drought, and the ecological crisis in the Sacramento-San Joaquin...
Authors
Claudia C. Faunt, Randall T. Hanson, Kenneth Belitz, Laurel Rogers
Groundwater availability of the Central Valley Aquifer, California Groundwater availability of the Central Valley Aquifer, California
California's Central Valley covers about 20,000 square miles and is one of the most productive agricultural regions in the world. More than 250 different crops are grown in the Central Valley with an estimated value of $17 billion per year. This irrigated agriculture relies heavily on surface-water diversions and groundwater pumpage. Approximately one-sixth of the Nation's irrigated land...