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
Filter Total Items: 34
Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of Southeastern Arkansas Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of Southeastern Arkansas
The Mississippi River Valley alluvial aquifer is a water-bearing assemblage of gravels and sands that underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi, Louisiana, and Arkansas. Because of the heavy demands placed on the aquifer, several large cones of depression have formed in the potentiometric surface, resulting in lower well yields and degraded water...
Authors
John B. Czarnecki, Brian R. Clark, Gregory P. Stanton
Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of northeastern Arkansas Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of northeastern Arkansas
The Mississippi River Valley alluvial aquifer is a water-bearing assemblage of gravels and sands that underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi, Louisiana, and Arkansas. Because of the heavy demands placed on the aquifer, several large cones of depression over 100 feet deep have formed in the potentiometric surface, resulting in lower well yields...
Authors
John B. Czarnecki, Brian R. Clark, Thomas B. Reed
Development and calibration of a ground-water flow model for the Sparta Aquifer of southeastern Arkansas and north-central Louisiana and simulated response to withdrawals, 1998-2027 Development and calibration of a ground-water flow model for the Sparta Aquifer of southeastern Arkansas and north-central Louisiana and simulated response to withdrawals, 1998-2027
The Sparta aquifer, which consists of the Sparta Sand, in southeastern Arkansas and north-central Louisiana is a major water resource and provides water for municipal, industrial, and agricultural uses. In recent years, the demand in some areas has resulted in withdrawals from the Sparta aquifer that substantially exceed replenishment of the aquifer. Considerable drawdown has occurred in...
Authors
Paul W. McKee, Brian R. Clark
Recalibration of a ground-water flow model of the Mississippi River Valley alluvial aquifer in southeastern Arkansas, 1918-1998, with simulations of hydraulic heads caused by projected ground-water withdrawals through 2049 Recalibration of a ground-water flow model of the Mississippi River Valley alluvial aquifer in southeastern Arkansas, 1918-1998, with simulations of hydraulic heads caused by projected ground-water withdrawals through 2049
To evaluate the effects of projected ground water withdrawals, three scenarios were used to simulate a range of possible withdrawals. Five additional stress periods of 10 years each were added to the model to facilitate predictive scenario generation. The predictive scenarios control pumpage by either continuing 1997 pumpage into the future (scenario 1) or by increasing water-use trends...
Authors
Gregory P. Stanton, Brian R. Clark
Science and Products
Filter Total Items: 34
Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of Southeastern Arkansas Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of Southeastern Arkansas
The Mississippi River Valley alluvial aquifer is a water-bearing assemblage of gravels and sands that underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi, Louisiana, and Arkansas. Because of the heavy demands placed on the aquifer, several large cones of depression have formed in the potentiometric surface, resulting in lower well yields and degraded water...
Authors
John B. Czarnecki, Brian R. Clark, Gregory P. Stanton
Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of northeastern Arkansas Conjunctive-use optimization model of the Mississippi River Valley alluvial aquifer of northeastern Arkansas
The Mississippi River Valley alluvial aquifer is a water-bearing assemblage of gravels and sands that underlies about 32,000 square miles of Missouri, Kentucky, Tennessee, Mississippi, Louisiana, and Arkansas. Because of the heavy demands placed on the aquifer, several large cones of depression over 100 feet deep have formed in the potentiometric surface, resulting in lower well yields...
Authors
John B. Czarnecki, Brian R. Clark, Thomas B. Reed
Development and calibration of a ground-water flow model for the Sparta Aquifer of southeastern Arkansas and north-central Louisiana and simulated response to withdrawals, 1998-2027 Development and calibration of a ground-water flow model for the Sparta Aquifer of southeastern Arkansas and north-central Louisiana and simulated response to withdrawals, 1998-2027
The Sparta aquifer, which consists of the Sparta Sand, in southeastern Arkansas and north-central Louisiana is a major water resource and provides water for municipal, industrial, and agricultural uses. In recent years, the demand in some areas has resulted in withdrawals from the Sparta aquifer that substantially exceed replenishment of the aquifer. Considerable drawdown has occurred in...
Authors
Paul W. McKee, Brian R. Clark
Recalibration of a ground-water flow model of the Mississippi River Valley alluvial aquifer in southeastern Arkansas, 1918-1998, with simulations of hydraulic heads caused by projected ground-water withdrawals through 2049 Recalibration of a ground-water flow model of the Mississippi River Valley alluvial aquifer in southeastern Arkansas, 1918-1998, with simulations of hydraulic heads caused by projected ground-water withdrawals through 2049
To evaluate the effects of projected ground water withdrawals, three scenarios were used to simulate a range of possible withdrawals. Five additional stress periods of 10 years each were added to the model to facilitate predictive scenario generation. The predictive scenarios control pumpage by either continuing 1997 pumpage into the future (scenario 1) or by increasing water-use trends...
Authors
Gregory P. Stanton, Brian R. Clark