Eric A White
Eric A. White is a Hydrologist in the Hydrologic Remote Sensing Branch of the USGS Water Mission Area. Eric provides support to USGS hydrologists nationally on development and application of hydrogeophysical methods to groundwater studies, with a focus on surface, waterborne, and sUAS methods.
Science and Products
Filter Total Items: 40
Water-borne electromagnetic induction, handheld thermal infrared and sediment temperature, chemical, and pressure data collected at Hen Cove, Pocasset, Massachusetts, 2022 Water-borne electromagnetic induction, handheld thermal infrared and sediment temperature, chemical, and pressure data collected at Hen Cove, Pocasset, Massachusetts, 2022
Groundwater discharge points to coastal waters can be identified and quantified using natural electrical and temperature data. In August 2022, U.S. Geological Survey (USGS) collected water-borne electromagnetic induction and temperature along selected transects within Hen Cove on Cape Cod, Massachusetts, following a spatial survey of bed sediment temperature. Handheld thermal infrared...
Magnetic Survey Data in Glastonbury, Connecticut 2023 Magnetic Survey Data in Glastonbury, Connecticut 2023
A ground-based magnetic survey was conducted in Glastonbury, Connecticut. Magnetic surveys are passive, non-contact, surface geophysical methods that measure the total ambient magnetic field. The magnetic survey utilized a Geometrics G-858 MagMapper with dual cesium vapor magnetometers and a GEM Systems Base Station. Sixteen survey profiles, totaling 7 linear kilometers in length, were...
Floating Transient Electromagnetic Survey Data from the Columbia River near Hanford, WA Floating Transient Electromagnetic Survey Data from the Columbia River near Hanford, WA
This data release contains motorboat-towed floating transient electromagnetic data collected from the Columbia River near Hanford WA. Data were collected using a ~16 foot (4.9 meters) outboard motorboat during two field campaigns: July 2021 and April 2022. In total, several hundred linear kilometers of data were collected from a reach of the Columbia that extends from approximately...
Sediment Volume and Bedrock of the Similkameen River Above Enloe Dam Near Oroville, Washington Sediment Volume and Bedrock of the Similkameen River Above Enloe Dam Near Oroville, Washington
This data release contains 3-meter gridded rasters of depth to bedrock below bathymetric surface, the thickness of unconsolidated sediment, and the volume of unconsolidated sediment within a 2.6-km reach of the Similkameen River, Okanogan County, Washington, impounded by Enloe Dam. These rasters were calculated from continuous resistivity profiles (CRP) surveyed using a SuperSting R8 8...
Continuous resistivity profiling (CRP) in the Similkameen River above Enloe Dam, Okanogan County, Washington Continuous resistivity profiling (CRP) in the Similkameen River above Enloe Dam, Okanogan County, Washington
A continuous resistivity profiling (CRP) survey was conducted in a 1.2-mile reach of the Similkameen River upstream of Enloe Dam in December 2021 in Washington State. The survey was performed to characterize the resistivity of the water column and subbottom materials using the CRP method. The survey consisted of eight longitudinal profiles roughly equivalent in length and conducted in...
Floating and Towed Transient Electromagnetic Surveys used to Characterize Hydrogeology underlying Rivers and Estuaries: March - December 2018 Floating and Towed Transient Electromagnetic Surveys used to Characterize Hydrogeology underlying Rivers and Estuaries: March - December 2018
Surface and water-borne geophysical methods can provide information for the characterization of the subsurface structure of the earth for aquifer investigations. Floating and towed transient electromagnetic (FloaTEM and tTEM) surveys provide resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. In the TEM method, a primary electrical current is...
Floating Electromagnetic Surveys from the Lower Delaware River Basin Floating Electromagnetic Surveys from the Lower Delaware River Basin
Electromagnetic (EM) geophysical methods provide information about the bulk electrical conductivity of the subsurface. EM data has been widely used to investigate aquifers and geologic structures. In the following study, the United States Geological Survey conducted a boat-towed, waterborne transient electromagnetic (FloaTEM) survey to examine conductivity within the subsurface of the...
Passive Seismic Horizontal-to-Vertical Spectral Ratio Measurements at Transportation Infrastructure Sites in New Hampshire, 2022 Passive Seismic Horizontal-to-Vertical Spectral Ratio Measurements at Transportation Infrastructure Sites in New Hampshire, 2022
In 2022, the U.S. Geological Survey (USGS) in cooperation with the New Hampshire Department of Transportation (NHDOT) made 107 horizontal-to-vertical spectral ratio (HVSR) passive seismic geophysical measurements at four transportation infrastructure sites in New Hampshire to determine the benefits of HVSR as an enhancement to traditional geotechnical site characterizations performed by...
Geophysical and Other Data From an Irrigation Monitoring Experiment at Haddam Meadows, CT, July 2019 Geophysical and Other Data From an Irrigation Monitoring Experiment at Haddam Meadows, CT, July 2019
An irrigation monitoring experiment was performed in Haddam Meadows State Park, Connecticut, on July 16, 2019. Prior to this experiment, ground penetrating radar (GPR), frequency domain electromagnetics (FDEM), and electrical resistivity tomography (ERT) geophysical data were collected over a 20 meter by 10-meter grid to provide baseline information. A vertical soil moisture probe was...
Passive seismic data collected along headwater stream corridors in Shenandoah National Park in 2016 - 2020 Passive seismic data collected along headwater stream corridors in Shenandoah National Park in 2016 - 2020
In July 2016, July 2019, and March 2020, 318 seismic recordings were acquired at locations within Shenandoah National Park, Virginia, using MOHO Tromino Model TEP-3C three-component seismometers to assess depth to bedrock using the HVSR method. This method requires a measurement of estimate of shear wave velocity, which depends on the regolith sediment composition and density, for the...
Time-domain electromagnetic soundings to delineate saline groundwater in the Genesee valley-fill aquifer system, New York (2016-2017) Time-domain electromagnetic soundings to delineate saline groundwater in the Genesee valley-fill aquifer system, New York (2016-2017)
In October and November 2016-2017, transient electromagnetic (TEM) data, also called time domain electromagnetic (TDEM) surveys, were acquired at 120 locations in the Genesee Valley, Livingston County, New York, in order to characterize the subsurface resistivity structure in support of a U.S. Geological Survey groundwater investigation. The TEM data were collected as part of a project...
Geophysical Data Collected in the Des Moines River, Beaver Creek, and the Des Moines River Floodplain, Des Moines, Iowa, 2018 Geophysical Data Collected in the Des Moines River, Beaver Creek, and the Des Moines River Floodplain, Des Moines, Iowa, 2018
A suite of geophysical methods was used along the Des Moines River, Beaver Creek, and in the Des Moines River floodplain in Des Moines, Iowa to support the hydrogeologic characterization of the alluvial aquifer associated with the river. The aquifer consists of sands and gravels underlain by weathered shale bedrock. Groundwater from the aquifer along with surface water sources are used...
Filter Total Items: 24
Application of frequency- and time-domain electromagnetic surveys to characterize hydrostratigraphy and landfill construction at the Amargosa Desert Research Site, Beatty, Nevada Application of frequency- and time-domain electromagnetic surveys to characterize hydrostratigraphy and landfill construction at the Amargosa Desert Research Site, Beatty, Nevada
In 2014 and 2015, the U.S. Geological Survey (USGS), conducted frequency-domain electromagnetic (FDEM) surveys at the USGS Amargosa Desert Research Site (ADRS), approximately 17 kilometers (km) south of Beatty, Nevada. The FDEM surveys were conducted within and adjacent to a closed low-level radioactive waste disposal site located at the ADRS. FDEM surveys were conducted on a grid of...
Authors
Eric A. White, Frederick D. Day-Lewis, Carole D. Johnson, John W. Lane
Statistical analysis of lake levels and field study of groundwater and surface-water exchanges in the northeast Twin Cities Metropolitan Area, Minnesota, 2002 through 2015: Chapter A of Water levels and groundwater and surface-water exchanges in lakes Statistical analysis of lake levels and field study of groundwater and surface-water exchanges in the northeast Twin Cities Metropolitan Area, Minnesota, 2002 through 2015: Chapter A of Water levels and groundwater and surface-water exchanges in lakes
Water levels declined from 2003 to 2011 in many lakes in Ramsey and Washington Counties in the northeast Twin Cities Metropolitan Area, Minnesota; however, water levels in other northeast Twin Cities Metropolitan Area lakes increased during the same period. Groundwater and surface-water exchanges can be important in determining lake levels where these exchanges are an important component...
Authors
Perry M. Jones, Jared J. Trost, Aliesha L. Diekoff, Donald O. Rosenberry, Eric A. White, Melinda L. Erickson, Daniel L. Morel, Jessica M. Heck
Wildfire risk as a socioecological pathology Wildfire risk as a socioecological pathology
Wildfire risk in temperate forests has become a nearly intractable problem that can be characterized as a socioecological “pathology”: that is, a set of complex and problematic interactions among social and ecological systems across multiple spatial and temporal scales. Assessments of wildfire risk could benefit from recognizing and accounting for these interactions in terms of...
Authors
A. Paige Fischer, Thomas A. Spies, Toddi A Steelman, Cassandra Moseley, Bart R. Johnson, John D. Bailey, Alan A Ager, Patrick S. Bourgeron, Susan Charnley, Brandon M. Collins, Jeffrey D Kline, Jessica E Leahy, Jeremy S. Littell, James D. A. Millington, Max Nielsen-Pincus, Christine S Olsen, Travis B Paveglio, Christopher I. Roos, Michelle M Steen-Adams, Forrest R Stevens, Jelena Vukomanovic, Eric M White, David M J S Bowman
Use of electromagnetic induction methods to monitor remediation at the University of Connecticut landfill: 2004–2011 Use of electromagnetic induction methods to monitor remediation at the University of Connecticut landfill: 2004–2011
Time‐lapse geophysical surveys using frequency‐domain electromagnetics (FDEM) can indirectly measure time‐varying hydrologic parameters such as fluid saturation or solute concentration. Monitoring of these processes provides insight into aquifer properties and the effectiveness of constructed controls (such as leachate interceptor trenches), as well as aquifer responses to natural or...
Authors
Carole D. Johnson, Eric A. White, Peter K. Joesten
Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA
A frequency-domain electromagnetic (FDEM) survey can be used to select locations for the more quantitative and labor-intensive electrical resistivity surveys. The FDEM survey rapidly characterized the groundwater-flow directions and configured the saline plumes caused by evaporation from several groundwater-dominated lakes in the Nebraska Sand Hills, USA. The FDEM instrument was mounted...
Authors
John B. Ong, John W. Lane, Vitaly A. Zlotnik, Todd Halihan, Eric A. White
Integrated use of surface geophysical methods for site characterization — A case study in North Kingstown, Rhode Island Integrated use of surface geophysical methods for site characterization — A case study in North Kingstown, Rhode Island
A suite of complementary, non‐invasive surface geophysical methods was used to assess their utility for site characterization in a pilot investigation at a former defense site in North Kingstown, Rhode Island. The methods included frequency‐domain electromagnetics (FDEM), ground‐penetrating radar (GPR), electrical resistivity tomography (ERT), and multi‐channel analysis of surface‐wave...
Authors
Carole D. Johnson, John W. Lane, William C. Brandon, Christine A.P. Williams, Eric A. White
Combined use of frequency‐domain electromagnetic and electrical resistivity surveys to delineate the freshwater/saltwater interface near saline lakes in the Nebraska Sand Hills, Nebraska, USA Combined use of frequency‐domain electromagnetic and electrical resistivity surveys to delineate the freshwater/saltwater interface near saline lakes in the Nebraska Sand Hills, Nebraska, USA
We investigate the use of frequency‐domain electromagnetic (FDEM) and electrical resistivity (ER) surveys for rapid and detailed characterization of the direction of lake‐aquifer fluxes and the configuration of salt plumes generated from saline lakes. This methodology was developed and applied at several lakes in the Nebraska Sand Hills, Nebraska, in an area with both freshwater and...
Authors
John T. Ong, Eric A. White, John W. Lane, Todd Halihan, Vitaly A Zlotnik
Estimation of bedrock depth using the horizontal‐to‐vertical (H/V) ambient‐noise seismic method Estimation of bedrock depth using the horizontal‐to‐vertical (H/V) ambient‐noise seismic method
Estimating sediment thickness and the geometry of the bedrock surface is a key component of many hydrogeologic studies. The horizontal‐to‐vertical (H/V) ambient‐noise seismic method is a novel, non‐invasive technique that can be used to rapidly estimate the depth to bedrock. The H/V method uses a single, broad‐band three‐component seismometer to record ambient seismic noise. The ratio of...
Authors
John W. Lane, Eric A. White, Gregory V. Steele, James C. Cannia
Marine geophysical investigation of selected sites in Bridgeport Harbor, Connecticut, 2006 Marine geophysical investigation of selected sites in Bridgeport Harbor, Connecticut, 2006
A marine geophysical investigation was conducted in 2006 to help characterize the bottom and subbottom materials and extent of bedrock in selected areas of Bridgeport Harbor, Connecticut. The data will be used by the U.S. Army Corps of Engineers in the design of confined aquatic disposal (CAD) cells within the harbor to facilitate dredging of the harbor. Three water-based geophysical...
Authors
Carole D. Johnson, Eric A. White
Surface-geophysical investigation of a formerly used defense site, Machiasport, Maine, February 2003 Surface-geophysical investigation of a formerly used defense site, Machiasport, Maine, February 2003
Surface-geophysical surveys were conducted in February 2003 at a formerly used defense site in Maine, where residual chlorinated solvents are affecting off-site domestic water-supply wells. The U.S. Geological Survey and Argonne National Laboratory used surface-geophysical methods, including ground-penetrating radar and seismic-refraction tomography, to characterize the lithology and...
Authors
Eric A. White
Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine
The U.S. Geological Survey (USGS), in cooperation with United Technologies Corporation, used an integrated suite of borehole, surface, and water-borne geophysical methods near the site of the former Winthrop Landfill, Winthrop, Maine, to investigate the hydrogeology controlling the transport of leachate from the landfill to nearby Annabessacook Lake. During the fall of 2000 and summer of...
Authors
Cian B. Dawson, John W. Lane, Eric A. White, Marcel Belaval
Borehole-geophysical investigation of the University of Connecticut landfill, Storrs, Connecticut Borehole-geophysical investigation of the University of Connecticut landfill, Storrs, Connecticut
A borehole-geophysical investigation was conducted to help characterize the hydrogeology of the fractured-rock aquifer and the distribution of unconsolidated glacial deposits near the former landfill and chemical waste-disposal pits at the University of Connecticut in Storrs, Connecticut. Eight bedrock boreholes near the landfill and three abandoned domestic wells located nearby were...
Authors
Carole D. Johnson, F.P. Haeni, John W. Lane, Eric A. White
Science and Products
Filter Total Items: 40
Water-borne electromagnetic induction, handheld thermal infrared and sediment temperature, chemical, and pressure data collected at Hen Cove, Pocasset, Massachusetts, 2022 Water-borne electromagnetic induction, handheld thermal infrared and sediment temperature, chemical, and pressure data collected at Hen Cove, Pocasset, Massachusetts, 2022
Groundwater discharge points to coastal waters can be identified and quantified using natural electrical and temperature data. In August 2022, U.S. Geological Survey (USGS) collected water-borne electromagnetic induction and temperature along selected transects within Hen Cove on Cape Cod, Massachusetts, following a spatial survey of bed sediment temperature. Handheld thermal infrared...
Magnetic Survey Data in Glastonbury, Connecticut 2023 Magnetic Survey Data in Glastonbury, Connecticut 2023
A ground-based magnetic survey was conducted in Glastonbury, Connecticut. Magnetic surveys are passive, non-contact, surface geophysical methods that measure the total ambient magnetic field. The magnetic survey utilized a Geometrics G-858 MagMapper with dual cesium vapor magnetometers and a GEM Systems Base Station. Sixteen survey profiles, totaling 7 linear kilometers in length, were...
Floating Transient Electromagnetic Survey Data from the Columbia River near Hanford, WA Floating Transient Electromagnetic Survey Data from the Columbia River near Hanford, WA
This data release contains motorboat-towed floating transient electromagnetic data collected from the Columbia River near Hanford WA. Data were collected using a ~16 foot (4.9 meters) outboard motorboat during two field campaigns: July 2021 and April 2022. In total, several hundred linear kilometers of data were collected from a reach of the Columbia that extends from approximately...
Sediment Volume and Bedrock of the Similkameen River Above Enloe Dam Near Oroville, Washington Sediment Volume and Bedrock of the Similkameen River Above Enloe Dam Near Oroville, Washington
This data release contains 3-meter gridded rasters of depth to bedrock below bathymetric surface, the thickness of unconsolidated sediment, and the volume of unconsolidated sediment within a 2.6-km reach of the Similkameen River, Okanogan County, Washington, impounded by Enloe Dam. These rasters were calculated from continuous resistivity profiles (CRP) surveyed using a SuperSting R8 8...
Continuous resistivity profiling (CRP) in the Similkameen River above Enloe Dam, Okanogan County, Washington Continuous resistivity profiling (CRP) in the Similkameen River above Enloe Dam, Okanogan County, Washington
A continuous resistivity profiling (CRP) survey was conducted in a 1.2-mile reach of the Similkameen River upstream of Enloe Dam in December 2021 in Washington State. The survey was performed to characterize the resistivity of the water column and subbottom materials using the CRP method. The survey consisted of eight longitudinal profiles roughly equivalent in length and conducted in...
Floating and Towed Transient Electromagnetic Surveys used to Characterize Hydrogeology underlying Rivers and Estuaries: March - December 2018 Floating and Towed Transient Electromagnetic Surveys used to Characterize Hydrogeology underlying Rivers and Estuaries: March - December 2018
Surface and water-borne geophysical methods can provide information for the characterization of the subsurface structure of the earth for aquifer investigations. Floating and towed transient electromagnetic (FloaTEM and tTEM) surveys provide resistivity soundings of the subsurface, which can be related to lithology and hydrogeology. In the TEM method, a primary electrical current is...
Floating Electromagnetic Surveys from the Lower Delaware River Basin Floating Electromagnetic Surveys from the Lower Delaware River Basin
Electromagnetic (EM) geophysical methods provide information about the bulk electrical conductivity of the subsurface. EM data has been widely used to investigate aquifers and geologic structures. In the following study, the United States Geological Survey conducted a boat-towed, waterborne transient electromagnetic (FloaTEM) survey to examine conductivity within the subsurface of the...
Passive Seismic Horizontal-to-Vertical Spectral Ratio Measurements at Transportation Infrastructure Sites in New Hampshire, 2022 Passive Seismic Horizontal-to-Vertical Spectral Ratio Measurements at Transportation Infrastructure Sites in New Hampshire, 2022
In 2022, the U.S. Geological Survey (USGS) in cooperation with the New Hampshire Department of Transportation (NHDOT) made 107 horizontal-to-vertical spectral ratio (HVSR) passive seismic geophysical measurements at four transportation infrastructure sites in New Hampshire to determine the benefits of HVSR as an enhancement to traditional geotechnical site characterizations performed by...
Geophysical and Other Data From an Irrigation Monitoring Experiment at Haddam Meadows, CT, July 2019 Geophysical and Other Data From an Irrigation Monitoring Experiment at Haddam Meadows, CT, July 2019
An irrigation monitoring experiment was performed in Haddam Meadows State Park, Connecticut, on July 16, 2019. Prior to this experiment, ground penetrating radar (GPR), frequency domain electromagnetics (FDEM), and electrical resistivity tomography (ERT) geophysical data were collected over a 20 meter by 10-meter grid to provide baseline information. A vertical soil moisture probe was...
Passive seismic data collected along headwater stream corridors in Shenandoah National Park in 2016 - 2020 Passive seismic data collected along headwater stream corridors in Shenandoah National Park in 2016 - 2020
In July 2016, July 2019, and March 2020, 318 seismic recordings were acquired at locations within Shenandoah National Park, Virginia, using MOHO Tromino Model TEP-3C three-component seismometers to assess depth to bedrock using the HVSR method. This method requires a measurement of estimate of shear wave velocity, which depends on the regolith sediment composition and density, for the...
Time-domain electromagnetic soundings to delineate saline groundwater in the Genesee valley-fill aquifer system, New York (2016-2017) Time-domain electromagnetic soundings to delineate saline groundwater in the Genesee valley-fill aquifer system, New York (2016-2017)
In October and November 2016-2017, transient electromagnetic (TEM) data, also called time domain electromagnetic (TDEM) surveys, were acquired at 120 locations in the Genesee Valley, Livingston County, New York, in order to characterize the subsurface resistivity structure in support of a U.S. Geological Survey groundwater investigation. The TEM data were collected as part of a project...
Geophysical Data Collected in the Des Moines River, Beaver Creek, and the Des Moines River Floodplain, Des Moines, Iowa, 2018 Geophysical Data Collected in the Des Moines River, Beaver Creek, and the Des Moines River Floodplain, Des Moines, Iowa, 2018
A suite of geophysical methods was used along the Des Moines River, Beaver Creek, and in the Des Moines River floodplain in Des Moines, Iowa to support the hydrogeologic characterization of the alluvial aquifer associated with the river. The aquifer consists of sands and gravels underlain by weathered shale bedrock. Groundwater from the aquifer along with surface water sources are used...
Filter Total Items: 24
Application of frequency- and time-domain electromagnetic surveys to characterize hydrostratigraphy and landfill construction at the Amargosa Desert Research Site, Beatty, Nevada Application of frequency- and time-domain electromagnetic surveys to characterize hydrostratigraphy and landfill construction at the Amargosa Desert Research Site, Beatty, Nevada
In 2014 and 2015, the U.S. Geological Survey (USGS), conducted frequency-domain electromagnetic (FDEM) surveys at the USGS Amargosa Desert Research Site (ADRS), approximately 17 kilometers (km) south of Beatty, Nevada. The FDEM surveys were conducted within and adjacent to a closed low-level radioactive waste disposal site located at the ADRS. FDEM surveys were conducted on a grid of...
Authors
Eric A. White, Frederick D. Day-Lewis, Carole D. Johnson, John W. Lane
Statistical analysis of lake levels and field study of groundwater and surface-water exchanges in the northeast Twin Cities Metropolitan Area, Minnesota, 2002 through 2015: Chapter A of Water levels and groundwater and surface-water exchanges in lakes Statistical analysis of lake levels and field study of groundwater and surface-water exchanges in the northeast Twin Cities Metropolitan Area, Minnesota, 2002 through 2015: Chapter A of Water levels and groundwater and surface-water exchanges in lakes
Water levels declined from 2003 to 2011 in many lakes in Ramsey and Washington Counties in the northeast Twin Cities Metropolitan Area, Minnesota; however, water levels in other northeast Twin Cities Metropolitan Area lakes increased during the same period. Groundwater and surface-water exchanges can be important in determining lake levels where these exchanges are an important component...
Authors
Perry M. Jones, Jared J. Trost, Aliesha L. Diekoff, Donald O. Rosenberry, Eric A. White, Melinda L. Erickson, Daniel L. Morel, Jessica M. Heck
Wildfire risk as a socioecological pathology Wildfire risk as a socioecological pathology
Wildfire risk in temperate forests has become a nearly intractable problem that can be characterized as a socioecological “pathology”: that is, a set of complex and problematic interactions among social and ecological systems across multiple spatial and temporal scales. Assessments of wildfire risk could benefit from recognizing and accounting for these interactions in terms of...
Authors
A. Paige Fischer, Thomas A. Spies, Toddi A Steelman, Cassandra Moseley, Bart R. Johnson, John D. Bailey, Alan A Ager, Patrick S. Bourgeron, Susan Charnley, Brandon M. Collins, Jeffrey D Kline, Jessica E Leahy, Jeremy S. Littell, James D. A. Millington, Max Nielsen-Pincus, Christine S Olsen, Travis B Paveglio, Christopher I. Roos, Michelle M Steen-Adams, Forrest R Stevens, Jelena Vukomanovic, Eric M White, David M J S Bowman
Use of electromagnetic induction methods to monitor remediation at the University of Connecticut landfill: 2004–2011 Use of electromagnetic induction methods to monitor remediation at the University of Connecticut landfill: 2004–2011
Time‐lapse geophysical surveys using frequency‐domain electromagnetics (FDEM) can indirectly measure time‐varying hydrologic parameters such as fluid saturation or solute concentration. Monitoring of these processes provides insight into aquifer properties and the effectiveness of constructed controls (such as leachate interceptor trenches), as well as aquifer responses to natural or...
Authors
Carole D. Johnson, Eric A. White, Peter K. Joesten
Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA Combined use of frequency-domain electromagnetic and electrical resistivity surveys to delineate near-lake groundwater flow in the semi-arid Nebraska Sand Hills, USA
A frequency-domain electromagnetic (FDEM) survey can be used to select locations for the more quantitative and labor-intensive electrical resistivity surveys. The FDEM survey rapidly characterized the groundwater-flow directions and configured the saline plumes caused by evaporation from several groundwater-dominated lakes in the Nebraska Sand Hills, USA. The FDEM instrument was mounted...
Authors
John B. Ong, John W. Lane, Vitaly A. Zlotnik, Todd Halihan, Eric A. White
Integrated use of surface geophysical methods for site characterization — A case study in North Kingstown, Rhode Island Integrated use of surface geophysical methods for site characterization — A case study in North Kingstown, Rhode Island
A suite of complementary, non‐invasive surface geophysical methods was used to assess their utility for site characterization in a pilot investigation at a former defense site in North Kingstown, Rhode Island. The methods included frequency‐domain electromagnetics (FDEM), ground‐penetrating radar (GPR), electrical resistivity tomography (ERT), and multi‐channel analysis of surface‐wave...
Authors
Carole D. Johnson, John W. Lane, William C. Brandon, Christine A.P. Williams, Eric A. White
Combined use of frequency‐domain electromagnetic and electrical resistivity surveys to delineate the freshwater/saltwater interface near saline lakes in the Nebraska Sand Hills, Nebraska, USA Combined use of frequency‐domain electromagnetic and electrical resistivity surveys to delineate the freshwater/saltwater interface near saline lakes in the Nebraska Sand Hills, Nebraska, USA
We investigate the use of frequency‐domain electromagnetic (FDEM) and electrical resistivity (ER) surveys for rapid and detailed characterization of the direction of lake‐aquifer fluxes and the configuration of salt plumes generated from saline lakes. This methodology was developed and applied at several lakes in the Nebraska Sand Hills, Nebraska, in an area with both freshwater and...
Authors
John T. Ong, Eric A. White, John W. Lane, Todd Halihan, Vitaly A Zlotnik
Estimation of bedrock depth using the horizontal‐to‐vertical (H/V) ambient‐noise seismic method Estimation of bedrock depth using the horizontal‐to‐vertical (H/V) ambient‐noise seismic method
Estimating sediment thickness and the geometry of the bedrock surface is a key component of many hydrogeologic studies. The horizontal‐to‐vertical (H/V) ambient‐noise seismic method is a novel, non‐invasive technique that can be used to rapidly estimate the depth to bedrock. The H/V method uses a single, broad‐band three‐component seismometer to record ambient seismic noise. The ratio of...
Authors
John W. Lane, Eric A. White, Gregory V. Steele, James C. Cannia
Marine geophysical investigation of selected sites in Bridgeport Harbor, Connecticut, 2006 Marine geophysical investigation of selected sites in Bridgeport Harbor, Connecticut, 2006
A marine geophysical investigation was conducted in 2006 to help characterize the bottom and subbottom materials and extent of bedrock in selected areas of Bridgeport Harbor, Connecticut. The data will be used by the U.S. Army Corps of Engineers in the design of confined aquatic disposal (CAD) cells within the harbor to facilitate dredging of the harbor. Three water-based geophysical...
Authors
Carole D. Johnson, Eric A. White
Surface-geophysical investigation of a formerly used defense site, Machiasport, Maine, February 2003 Surface-geophysical investigation of a formerly used defense site, Machiasport, Maine, February 2003
Surface-geophysical surveys were conducted in February 2003 at a formerly used defense site in Maine, where residual chlorinated solvents are affecting off-site domestic water-supply wells. The U.S. Geological Survey and Argonne National Laboratory used surface-geophysical methods, including ground-penetrating radar and seismic-refraction tomography, to characterize the lithology and...
Authors
Eric A. White
Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine Integrated geophysical characterization of the Winthrop Landfill Southern Flow Path, Winthrop, Maine
The U.S. Geological Survey (USGS), in cooperation with United Technologies Corporation, used an integrated suite of borehole, surface, and water-borne geophysical methods near the site of the former Winthrop Landfill, Winthrop, Maine, to investigate the hydrogeology controlling the transport of leachate from the landfill to nearby Annabessacook Lake. During the fall of 2000 and summer of...
Authors
Cian B. Dawson, John W. Lane, Eric A. White, Marcel Belaval
Borehole-geophysical investigation of the University of Connecticut landfill, Storrs, Connecticut Borehole-geophysical investigation of the University of Connecticut landfill, Storrs, Connecticut
A borehole-geophysical investigation was conducted to help characterize the hydrogeology of the fractured-rock aquifer and the distribution of unconsolidated glacial deposits near the former landfill and chemical waste-disposal pits at the University of Connecticut in Storrs, Connecticut. Eight bedrock boreholes near the landfill and three abandoned domestic wells located nearby were...
Authors
Carole D. Johnson, F.P. Haeni, John W. Lane, Eric A. White