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USGS OGW, BG: Assessing the resolution-dependent utility …

United States Geological Survey, Office of Ground Water, Branch of Geophysics - Assessing the resolution-dependent utility of tomograms for geostatistics

USGS OGW BG: Photo Gallery

Figure 3. USGS scientists prepare to install a well at the study area. Well construction across the study area allows for ongoing ground-water sampling at 56 points. Figure 4. Rory Henderson (USGS OGW Branch of Geophysics) installs trenches that will house surface electrical resistivity tomography (ERT) and data transfer cables at the study area.

USGS OGW, BG: Watershed-Scale Temperature Monitoring of Hydrologic

Watershed-Scale Temperature Monitoring of Hydrologic Processes. F.D. Day- and J.W. Lane, Jr. Abstract. New geophysical methods are required for monitoring hydrologic processes at the catchment and larger scales, and for quantifying fluxes between ground water and surface water.

USGS OGW, BG: TDEM and NUMISPlus Soundings at the …

TDEM and NUMIS Plus soundings at the Ash Meadows National Wildlife Refuge: a case study. Jared D. Abraham, U.S. Geological Survey Denver Federal Center, P.O. Box 25046, Mail Stop 964, Denver, CO 80225-0046, USA 001-303-236-1318, [email protected]

USGS

As part of OGW Branch of Geophysics (BG) geophysical monitoring research through the USGS Toxic Substances Hydrology Program, electrical-resistivity tomography (ERT) surveys of saline tracer tests in porous media were conducted on the Massachusetts Military Reservation (MMR), Cape Cod, Massachusetts.

USGS OGW BG: Photo Gallery

Rory Henderson (USGS OGW Branch of Geophysics) installs trenches that will house surface electrical resistivity tomography (ERT) and data transfer cables at the study area. Figure 5. Thirty porous-pot electrodes were installed to enable collection of self potential (SP) and induced polarization (IP) measurements during bioremediation at the ...

USGS OGW BG: Integrated Surface Geophysical Methods for

As part of its applied research initiatives, the USGS Office of Ground Water, Branch of Geophysics (OGW BG) assists in the planning and collection of surface geophysical data at the USGS Toxic Substances Hydrology Program's Naval Air Warfare Center (NAWC) research site in New Jersey, where volatile organic compounds have contaminated …

Optimized Enhanced Bioremediation through 4D …

The USGS Office of Ground Water, Branch of Geophysics (OGW BG) is collaborating on an applied research project to evaluate the use of new hydrogeophysical tools to remotely …

USGS OGW BG: Applied Toxic Substances Hydrology Research

This research was conducted by Fred Day- (USGS OGW BG) and Carole D. Johnson (USGS OGW BG), with assistance from Fred Paillet and OGW BG staff. Recent Publications: Day-, F.D., and Lane, J.W., Jr., 2004, Assessing the resolution-dependent utility of tomograms for geostatistics : Geophysical Research Letters, v. 31, …

USGS OGW, BG: Magnetic Resonance Sounding (MRS)

Because g has a specific value for each nuclei, the Larmor frequency is a physical property of the nuclei. g is 2p x 4.254597x10-2 = 0.2675 radians per second per nano-Tesla (rad/s/nT) for protons in water molecules.. The empricial method used in determining the permeability of a formation is then based on the following relationship: k = C k (fT 1 * 2)

USGS OGW BG: Applied Toxic Substances Hydrology …

This research was funded by the USGS Toxic Substances Hydrology Program and by the National Science Foundation (Grant no. EAR-0124262).. This research was conducted by Kamini Singha (Stanford University School of Earth Sciences) with assistance from OGW BG staff.. Recent publications: Singha, K., Binley, A.M., Lane, J.W., Jr., and Gorelick, …

USGS OGW, BG: Borehole-wall imaging with acoustic and …

Final copy as submitted to Seventh International Symposium on Borehole Geophysics for Minerals, Geotechnical, and Groundwater Applications for publication as: Williams, J.H., and Johnson, C.D., 2000, Borehole-wall imaging with acoustic and optical televiewers for fractured-bedrock aquifer investigations, in Seventh International Symposium on …

USGS OGW BG: Applied Research at UConn landfill study …

Since 1998, the USGS has cooperated with the University of Connecticut as part of a research team using a multi-disciplinary, integrated approach to characterize the nature and extent of contamination in the soil, ground water, and surface water in the area of a landfill and former chemical-waste disposal pits at the University of Connecticut (UConn), …

USGS OGW, BG: CRP system

OGW BG collaborated with Advanced Geosciences, Inc. (AGI) to test the new OGW BG continuous resistivity profiling (CRP) system. AGI provided training on CRP data acquisition, processing and interpretation from January 7 to January 11, 2002, for John Lane and Eric White of the USGS OGW, Branch of Geophysics and Marcel Belaval a graduate student …

USGS OGW BG: Borehole Radar Imaging of Injected …

As part of OGW BG geophysical monitoring research through the USGS Toxic Substances Hydrology Program, a pilot-scale study was conducted on the Massachusetts Military Reservation, Cape Cod, Massachusetts, to assess the use of a hydraulic-fracturing method to create vertical permeable walls of zero-valent iron to remediate groundwater …

Fiber-Optic Distributed Temperature Sensing in the UK

In 2009 the USGS Office of Groundwater, Branch of Geophysics (OGW BG) expanded its technology demonstration and evaluation activities to England in an ongoing effort to evaluate the use of fiber-optic distributed temperature sensing (FO-DTS).

USGS OGW, BG: Integration of Geophysical Methods for …

ABSTRACT. Five surface geophysical methods were used to determine the locations of fracture zones in crystalline bedrock for predicting fluid flow and chemical migration at the U.S. Geological Survey Fractured Rock Research Site at …

USGS OGW BG: Radar Tomography and Borehole …

As part of its applied research initiatives, the USGS Office of Groundwater, Branch of Geophysics (OGW BG) collected and analyzed cross-hole radar and geophysical logging data collected from 2001 through 2003 to monitor a U.S. Navy pilot biostimulation project designed to remediate groundwater contaminated with chlorinated hydrocarbons in …

USGS OGW, BG: Application of a geophysical tool-box …

USGS OGW, BG: Application of a geophysical tool-box approach to characterization of fractured-rock aquifers -- a case study from Norwalk, Connecticut ... As part of improvements to the USGS Water Resources Mission Area web presence to better serve you, this site is being sunset.

USGS OGW, BG: Presentations

Presentations. As a means of sharing and disseminating the work done at the OGW, Branch of Geophysics, staff often make presentations at USGS offices and districts …

USGS OGW BG: FLASH

Publications > Johnson and others, 2010.. FLASH - A program for flow-log analysis of single holes. Carole D. Johnson, Office of Groundwater, Branch of Geophysics, U.S. Geological Survey, 11 Sherman Place, Unit 5015, Storrs, CT 06269, Storrs-Mansfield, CT 06269, [email protected]

USGS OGW, BG: Presentations

As a means of sharing and disseminating the work done at the OGW, Branch of Geophysics, staff often make presentations at USGS offices and districts nationally, at conferences and meetings, and at other formal and informal gatherings. Below you will find samples of these presentations. "Use of Geophysical Tool Box to Characterize Ground …

USGS OGW, BG: Student Research Opportunities

The USGS Office of Groundwater, Branch of Geophysics (OGW BG) is seeking undergraduate and graduate students interested in emerging geophysical methods and …

USGS OGW BG: Use of towed electromagnetic conductivity …

Use of towed electromagnetic conductivity surveys for reconnaissance geophysics - An example from saline lakes in the Nebraska Sand Hills. John W. Lane Jr. (1), Eric A. White (1), Vitaly Zlotnik (2) and John B. Ong (2)

Photo Gallery of BG Research at Fridley, Minnesota

Alton Anderson (USGS NY District) and Dick Hodges (USGS Borehole Geophysics Research Project, Denver) clean neutron logging tool after conducting logging in boreholes at NIROP. Peter Joesten (OGW, Branch of Geophysics) pulls radar cable to remove radar antenna from borehole.

USGS OGW BG: Applied Toxic Substances Hydrology Research

This research was funded by the USGS Toxic Substances Hydrology Program and by the National Science Foundation (Grant no. EAR-0124262).. This research was conducted by Kamini Singha (Stanford University School of Earth Sciences) with assistance from OGW BG staff.. Recent publications: Singha, K., Binley, A.M., Lane, J.W., Jr., and Gorelick, …

USGS OGW, BG: High-resolution flow logging for hydraulic

High-resolution flow logging for hydraulic characterization of boreholes and aquifer flow zones at contaminated bedrock sites. Williams, J.H., [email protected], U. S. …

USGS OGW, BG: Borehole Radar Tomography Imaging of …

Cross-hole radar tomography is one of the geophysical methods that has been used at the U.S. Geological Survey (USGS) Mirror Lake fractured-rock field-research site in the …

USGS OGW, BG: Application of borehole-radar methods to …

Final copy as submitted to Symposium on the Application of Geophysics to Engineering and Environmental Problems for publication as: Joesten, P.K., Lane, J.W., Jr., Savoie, J.G., and Versteeg, R.J., 2001, Application of borehole-radar methods to image two permeable reactive-iron walls at the Massachusetts Millitary Reservation, Cape Cod, …

USGS OGW, BG: Mission

OGW BG also promotes consistent guidelines for quality assurance and quality control for the collection, processing, storage, and interpretation of related geophysical data. The …

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