Groundwater or surface water interaction in the Ozark Plateaus aquifer system. Includes examples of thermal imagery used to see groundwater entering streams.
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
Coastal Lowlands Regional Groundwater Availability Study
USGS is undertaking a 5-year study to assess groundwater availability for the aquifers proximal to the Gulf of America from the Texas-Mexico border through the panhandle of Florida, known as the Coastal Lowlands Aquifer System (CLAS). This study is one of several within the Regional Groundwater Availability Studies of the USGS Water Availability and Use Science Program.
Ozark Plateaus Groundwater Availability Study
The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources.
Mississippi Alluvial Plain Management and Environmental Support System
Providing reliable hydrologic understanding of a system as inherently complex as the MAP will require a numerical groundwater simulation model capable of simulating stream/aquifer interaction, updated and recalibrated over time and supported by a continuing program of data collection and evaluation. The US Geological Survey (USGS) has produced such a model for the larger Mississippi embayment...
Ozark Groundwater Availability Study
The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources. Assessments will be completed for the Nation's principal aquifer systems to help characterize how...
Principal Aquifer Susceptibility Study
Short Title: Principal Aquifers Project Chief: Brian Clark Cooperator: U.S. Geological Survey National Water-Quality Assessment Program Project Time Frame: May 2008 - Sept 2009 The principal aquifer study will use regional ground-water MODFLOW models and particle-tracking predictions to estimate travel time from the water table to aquifer zones in selected principal aquifers. Zones may be related...
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...
Groundwater, A Source To Streams in the Ozark Plateaus
Groundwater or surface water interaction in the Ozark Plateaus aquifer system. Includes examples of thermal imagery used to see groundwater entering streams.
Water-level Change in the High Plains Aquifer System
In 1986, Congress directed the USGS to regularly report groundwater-level changes in the High Plains aquifer system. To comply with this directive, the USGS compares water levels measured every two years. By measuring water levels across the entire aquifer in one year, measurements made two years later enable calculation of changes over time.
In 1986, Congress directed the USGS to regularly report groundwater-level changes in the High Plains aquifer system. To comply with this directive, the USGS compares water levels measured every two years. By measuring water levels across the entire aquifer in one year, measurements made two years later enable calculation of changes over time.
The Mississippi Embayment - Declining Water Levels in a Deep Aquifer
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a deep aquifer. Water from this deep aquifer is utilized to meet the industrial and public supply needs in the area.
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a deep aquifer. Water from this deep aquifer is utilized to meet the industrial and public supply needs in the area.
The Mississippi Embayment - Declining Water Levels in a Shallow Aquifer
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a shallow aquifer. Water from this shallow aquifer is utilized by the agricultural based economy in the area.
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a shallow aquifer. Water from this shallow aquifer is utilized by the agricultural based economy in the area.
Simulated groundwater declines in Central Arkansas
A groundwater-flow model of the Mississippi embayment was used to evaluate changes in water-level altitudes after the addition of wells that simulate potential future pumping from the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas (shown within the black outline) for the 30-year period from 2007 through 2037.
A groundwater-flow model of the Mississippi embayment was used to evaluate changes in water-level altitudes after the addition of wells that simulate potential future pumping from the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas (shown within the black outline) for the 30-year period from 2007 through 2037.
The Mississippi embayment — Where Does the Water Come From?
As the animation begins, the land surface of the Mississippi embayment fades away to reveal underground geologic formations (shown as shades of blue, brown, and gray surfaces). A slice deep into the earth cuts off the eastern half of the embayment so we can peer into the formations (aquifers) beneath the surface.
As the animation begins, the land surface of the Mississippi embayment fades away to reveal underground geologic formations (shown as shades of blue, brown, and gray surfaces). A slice deep into the earth cuts off the eastern half of the embayment so we can peer into the formations (aquifers) beneath the surface.
The Mississippi embayment — a look underground
Water, oil, and gas wells (shown as green lines) are drilled to hundreds or thousands of feet below land surface in an area known as the Mississippi embayment. Information gathered from these wells was used to create a 3D computer model of underground formations.
Water, oil, and gas wells (shown as green lines) are drilled to hundreds or thousands of feet below land surface in an area known as the Mississippi embayment. Information gathered from these wells was used to create a 3D computer model of underground formations.
Science and Products
Coastal Lowlands Regional Groundwater Availability Study
USGS is undertaking a 5-year study to assess groundwater availability for the aquifers proximal to the Gulf of America from the Texas-Mexico border through the panhandle of Florida, known as the Coastal Lowlands Aquifer System (CLAS). This study is one of several within the Regional Groundwater Availability Studies of the USGS Water Availability and Use Science Program.
Ozark Plateaus Groundwater Availability Study
The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources.
Mississippi Alluvial Plain Management and Environmental Support System
Providing reliable hydrologic understanding of a system as inherently complex as the MAP will require a numerical groundwater simulation model capable of simulating stream/aquifer interaction, updated and recalibrated over time and supported by a continuing program of data collection and evaluation. The US Geological Survey (USGS) has produced such a model for the larger Mississippi embayment...
Ozark Groundwater Availability Study
The U.S. Geological Survey's Groundwater Resources Program (GWRP) is conducting an assessment of groundwater availability throughout the United States to gain a better understanding of the status of the Nation's groundwater resources and how changes in water use and climate may affect those resources. Assessments will be completed for the Nation's principal aquifer systems to help characterize how...
Principal Aquifer Susceptibility Study
Short Title: Principal Aquifers Project Chief: Brian Clark Cooperator: U.S. Geological Survey National Water-Quality Assessment Program Project Time Frame: May 2008 - Sept 2009 The principal aquifer study will use regional ground-water MODFLOW models and particle-tracking predictions to estimate travel time from the water table to aquifer zones in selected principal aquifers. Zones may be related...
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...
Groundwater, A Source To Streams in the Ozark Plateaus
Groundwater or surface water interaction in the Ozark Plateaus aquifer system. Includes examples of thermal imagery used to see groundwater entering streams.
Groundwater or surface water interaction in the Ozark Plateaus aquifer system. Includes examples of thermal imagery used to see groundwater entering streams.
Water-level Change in the High Plains Aquifer System
In 1986, Congress directed the USGS to regularly report groundwater-level changes in the High Plains aquifer system. To comply with this directive, the USGS compares water levels measured every two years. By measuring water levels across the entire aquifer in one year, measurements made two years later enable calculation of changes over time.
In 1986, Congress directed the USGS to regularly report groundwater-level changes in the High Plains aquifer system. To comply with this directive, the USGS compares water levels measured every two years. By measuring water levels across the entire aquifer in one year, measurements made two years later enable calculation of changes over time.
The Mississippi Embayment - Declining Water Levels in a Deep Aquifer
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a deep aquifer. Water from this deep aquifer is utilized to meet the industrial and public supply needs in the area.
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a deep aquifer. Water from this deep aquifer is utilized to meet the industrial and public supply needs in the area.
The Mississippi Embayment - Declining Water Levels in a Shallow Aquifer
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a shallow aquifer. Water from this shallow aquifer is utilized by the agricultural based economy in the area.
The USGS recently constructed a computer model of groundwater in the Mississippi embayment. This model was used to simulate the rise or decline of water level in a shallow aquifer. Water from this shallow aquifer is utilized by the agricultural based economy in the area.
Simulated groundwater declines in Central Arkansas
A groundwater-flow model of the Mississippi embayment was used to evaluate changes in water-level altitudes after the addition of wells that simulate potential future pumping from the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas (shown within the black outline) for the 30-year period from 2007 through 2037.
A groundwater-flow model of the Mississippi embayment was used to evaluate changes in water-level altitudes after the addition of wells that simulate potential future pumping from the Sparta aquifer in the Bayou Meto-Grand Prairie area of eastern Arkansas (shown within the black outline) for the 30-year period from 2007 through 2037.
The Mississippi embayment — Where Does the Water Come From?
As the animation begins, the land surface of the Mississippi embayment fades away to reveal underground geologic formations (shown as shades of blue, brown, and gray surfaces). A slice deep into the earth cuts off the eastern half of the embayment so we can peer into the formations (aquifers) beneath the surface.
As the animation begins, the land surface of the Mississippi embayment fades away to reveal underground geologic formations (shown as shades of blue, brown, and gray surfaces). A slice deep into the earth cuts off the eastern half of the embayment so we can peer into the formations (aquifers) beneath the surface.
The Mississippi embayment — a look underground
Water, oil, and gas wells (shown as green lines) are drilled to hundreds or thousands of feet below land surface in an area known as the Mississippi embayment. Information gathered from these wells was used to create a 3D computer model of underground formations.
Water, oil, and gas wells (shown as green lines) are drilled to hundreds or thousands of feet below land surface in an area known as the Mississippi embayment. Information gathered from these wells was used to create a 3D computer model of underground formations.