Brian R Clark
Brian Clark is the Deputy Program Coordinator for the Water Availability and Use Science Program in the USGS Water Resources Mission Area.
Brian is a Deputy Program Coordinator for the Water Availability and Use Science Program (WAUSP) and the National Water Quality Program (NWQP) in the USGS Water Resources Mission Area. Before moving to the Mission Area in 2018, Brian led water resource investigations of groundwater and surface water computer model simulations in multiples areas while at the Lower Mississippi Gulf Water Science Center.
Science and Products
Mississippi Embayment Regional Aquifer Study (MERAS)
Short Title: MERAS Model Project Chief: Brian Clark Cooperator: U.S. Geological Survey Office of Ground-Water Resources Program Project Time Frame: January 2006 - 2009 Fresh ground-water in the Mississippi embayment can be found in alternating formations of sand, silt and clay. Decades of pumping from the Mississippi River Valley alluvial aquifer for irrigation and from the Sparta-Memphis aquifer...
Analysis of Chloride Data in the Alluvial Aquifer of Southeastern Arkansas
Short Title: Southeastern Arkansas Chloride Study Project Chief: Brian Clark Cooperator: Boeuf-Tensas Regional Irrigation Water Distribution District Project Time Frame: July 2007 - September 2008 The Mississippi River Valley alluvial aquifer is one of the highest use aquifer systems in Arkansas. In localized areas, the chloride content has been observed to be high enough to limit the use of this...
Filter Total Items: 34
Groundwater development stress: Global-scale indices compared to regional modeling Groundwater development stress: Global-scale indices compared to regional modeling
The increased availability of global datasets and technologies such as global hydrologic models and the Gravity Recovery and Climate Experiment (GRACE) satellites have resulted in a growing number of global-scale assessments of water availability using simple indices of water stress. Developed initially for surface water, such indices are increasingly used to evaluate global groundwater...
Authors
William Alley, Brian R. Clark, Matt Ely, Claudia C. Faunt
Challenges for creating a site-specific groundwater-use record for the Ozark Plateaus aquifer system (central USA) from 1900 to 2010 Challenges for creating a site-specific groundwater-use record for the Ozark Plateaus aquifer system (central USA) from 1900 to 2010
Hydrologic budgets to determine groundwater availability are important tools for water-resource managers. One challenging component for developing hydrologic budgets is quantifying water use through time because historical and site-specific water-use data can be sparse or poorly documented. This research developed a groundwater-use record for the Ozark Plateaus aquifer system (central...
Authors
Katherine J. Knierim, Anna M. Nottmeier, Scott C. Worland, Drew A. Westerman, Brian R. Clark
Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity
The U.S. Geological Survey, National Water-Quality Assessment seeks to map estimated intrinsic susceptibility of the glacial aquifer system of the conterminous United States. Improved understanding of the hydrogeologic characteristics that explain spatial patterns of intrinsic susceptibility, commonly inferred from estimates of groundwater age distributions, is sought so that methods...
Authors
Paul F. Juckem, Brian R. Clark, Daniel T. Feinstein
Hydrogeology and hydrologic conditions of the Ozark Plateaus aquifer system Hydrogeology and hydrologic conditions of the Ozark Plateaus aquifer system
The hydrogeology and hydrologic characteristics of the Ozark Plateaus aquifer system were characterized as part of ongoing U.S. Geological Survey efforts to assess groundwater availability across the Nation. The need for such a study in the Ozark Plateaus physiographic province (Ozark Plateaus) is highlighted by increasing demand on groundwater resources by the 5.3 million people of the...
Authors
Phillip D. Hays, Katherine J. Knierim, Brian K. Breaker, Drew A. Westerman, Brian R. Clark
Altitudes and thicknesses of hydrogeologic units of the Ozark Plateaus aquifer system in Arkansas, Kansas, Missouri, and Oklahoma Altitudes and thicknesses of hydrogeologic units of the Ozark Plateaus aquifer system in Arkansas, Kansas, Missouri, and Oklahoma
A hydrogeologic framework was constructed to represent the altitudes and thicknesses of hydrogeologic units within the Ozark Plateaus aquifer system as part of a regional groundwater-flow model supported by the U.S. Geological Survey Water Availability and Use Science Program. The Ozark Plateaus aquifer system study area is nearly 70,000 square miles and includes parts of Arkansas...
Authors
Drew A. Westerman, Jonathan A. Gillip, Joseph M. Richards, Phillip D. Hays, Brian R. Clark
Chemical variations in Yellowknife Bay formation sedimentary rocks analyzed by ChemCam on board the Curiosity rover on Mars Chemical variations in Yellowknife Bay formation sedimentary rocks analyzed by ChemCam on board the Curiosity rover on Mars
The Yellowknife Bay formation represents a ~5 m thick stratigraphic section of lithified fluvial and lacustrine sediments analyzed by the Curiosity rover in Gale crater, Mars. Previous works have mainly focused on the mudstones that were drilled by the rover at two locations. The present study focuses on the sedimentary rocks stratigraphically above the mudstones by studying their...
Authors
Nicolas Mangold, Olivier Forni, G. Dromart, K.M. Stack, Roger C. Wiens, Olivier Gasnault, Dawn Y. Sumner, Marion Nachon, Pierre-Yves Meslin, Ryan B. Anderson, Bruce Barraclough, J.F. Bell, G. Berger, D.L. Blaney, J.C. Bridges, F. Calef, Brian R. Clark, Samuel M. Clegg, Agnes Cousin, L. Edgar, Kenneth S. Edgett, B.L. Ehlmann, Cecile Fabre, M. Fisk, John P. Grotzinger, S.C. Gupta, Kenneth E. Herkenhoff, J.A. Hurowitz, J. R. Johnson, Linda C. Kah, Nina L. Lanza, Jeremie Lasue, S. Le Mouélic, Eric Lewin, Michael Malin, Scott M. McLennan, S. Maurice, Noureddine Melikechi, Alissa Mezzacappa, Ralph E. Milliken, H.L. Newsome, A. Ollila, Scott K. Rowland, Violaine Sautter, M.E. Schmidt, S. Schroder, C. D'Uston, Dave Vaniman, R. A. Williams
Science and Products
Mississippi Embayment Regional Aquifer Study (MERAS)
Short Title: MERAS Model Project Chief: Brian Clark Cooperator: U.S. Geological Survey Office of Ground-Water Resources Program Project Time Frame: January 2006 - 2009 Fresh ground-water in the Mississippi embayment can be found in alternating formations of sand, silt and clay. Decades of pumping from the Mississippi River Valley alluvial aquifer for irrigation and from the Sparta-Memphis aquifer...
Analysis of Chloride Data in the Alluvial Aquifer of Southeastern Arkansas
Short Title: Southeastern Arkansas Chloride Study Project Chief: Brian Clark Cooperator: Boeuf-Tensas Regional Irrigation Water Distribution District Project Time Frame: July 2007 - September 2008 The Mississippi River Valley alluvial aquifer is one of the highest use aquifer systems in Arkansas. In localized areas, the chloride content has been observed to be high enough to limit the use of this...
Filter Total Items: 34
Groundwater development stress: Global-scale indices compared to regional modeling Groundwater development stress: Global-scale indices compared to regional modeling
The increased availability of global datasets and technologies such as global hydrologic models and the Gravity Recovery and Climate Experiment (GRACE) satellites have resulted in a growing number of global-scale assessments of water availability using simple indices of water stress. Developed initially for surface water, such indices are increasingly used to evaluate global groundwater...
Authors
William Alley, Brian R. Clark, Matt Ely, Claudia C. Faunt
Challenges for creating a site-specific groundwater-use record for the Ozark Plateaus aquifer system (central USA) from 1900 to 2010 Challenges for creating a site-specific groundwater-use record for the Ozark Plateaus aquifer system (central USA) from 1900 to 2010
Hydrologic budgets to determine groundwater availability are important tools for water-resource managers. One challenging component for developing hydrologic budgets is quantifying water use through time because historical and site-specific water-use data can be sparse or poorly documented. This research developed a groundwater-use record for the Ozark Plateaus aquifer system (central...
Authors
Katherine J. Knierim, Anna M. Nottmeier, Scott C. Worland, Drew A. Westerman, Brian R. Clark
Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity Simulation of groundwater flow in the glacial aquifer system of northeastern Wisconsin with variable model complexity
The U.S. Geological Survey, National Water-Quality Assessment seeks to map estimated intrinsic susceptibility of the glacial aquifer system of the conterminous United States. Improved understanding of the hydrogeologic characteristics that explain spatial patterns of intrinsic susceptibility, commonly inferred from estimates of groundwater age distributions, is sought so that methods...
Authors
Paul F. Juckem, Brian R. Clark, Daniel T. Feinstein
Hydrogeology and hydrologic conditions of the Ozark Plateaus aquifer system Hydrogeology and hydrologic conditions of the Ozark Plateaus aquifer system
The hydrogeology and hydrologic characteristics of the Ozark Plateaus aquifer system were characterized as part of ongoing U.S. Geological Survey efforts to assess groundwater availability across the Nation. The need for such a study in the Ozark Plateaus physiographic province (Ozark Plateaus) is highlighted by increasing demand on groundwater resources by the 5.3 million people of the...
Authors
Phillip D. Hays, Katherine J. Knierim, Brian K. Breaker, Drew A. Westerman, Brian R. Clark
Altitudes and thicknesses of hydrogeologic units of the Ozark Plateaus aquifer system in Arkansas, Kansas, Missouri, and Oklahoma Altitudes and thicknesses of hydrogeologic units of the Ozark Plateaus aquifer system in Arkansas, Kansas, Missouri, and Oklahoma
A hydrogeologic framework was constructed to represent the altitudes and thicknesses of hydrogeologic units within the Ozark Plateaus aquifer system as part of a regional groundwater-flow model supported by the U.S. Geological Survey Water Availability and Use Science Program. The Ozark Plateaus aquifer system study area is nearly 70,000 square miles and includes parts of Arkansas...
Authors
Drew A. Westerman, Jonathan A. Gillip, Joseph M. Richards, Phillip D. Hays, Brian R. Clark
Chemical variations in Yellowknife Bay formation sedimentary rocks analyzed by ChemCam on board the Curiosity rover on Mars Chemical variations in Yellowknife Bay formation sedimentary rocks analyzed by ChemCam on board the Curiosity rover on Mars
The Yellowknife Bay formation represents a ~5 m thick stratigraphic section of lithified fluvial and lacustrine sediments analyzed by the Curiosity rover in Gale crater, Mars. Previous works have mainly focused on the mudstones that were drilled by the rover at two locations. The present study focuses on the sedimentary rocks stratigraphically above the mudstones by studying their...
Authors
Nicolas Mangold, Olivier Forni, G. Dromart, K.M. Stack, Roger C. Wiens, Olivier Gasnault, Dawn Y. Sumner, Marion Nachon, Pierre-Yves Meslin, Ryan B. Anderson, Bruce Barraclough, J.F. Bell, G. Berger, D.L. Blaney, J.C. Bridges, F. Calef, Brian R. Clark, Samuel M. Clegg, Agnes Cousin, L. Edgar, Kenneth S. Edgett, B.L. Ehlmann, Cecile Fabre, M. Fisk, John P. Grotzinger, S.C. Gupta, Kenneth E. Herkenhoff, J.A. Hurowitz, J. R. Johnson, Linda C. Kah, Nina L. Lanza, Jeremie Lasue, S. Le Mouélic, Eric Lewin, Michael Malin, Scott M. McLennan, S. Maurice, Noureddine Melikechi, Alissa Mezzacappa, Ralph E. Milliken, H.L. Newsome, A. Ollila, Scott K. Rowland, Violaine Sautter, M.E. Schmidt, S. Schroder, C. D'Uston, Dave Vaniman, R. A. Williams