Abstract. Cross-hole radar tomography surveys using saline tracer injections have been developed and tested at the U.S. Geological Survey Mirror Lake fractured-rock field-research site in Grafton County, New Hampshire to delineate transmissive fracture zones and image fluid flow at a scale of a meter to about 100 meters (m).
Final copy as submitted to 2004 U.S. EPA/NGWA Fractured Rock Conference for publication as: Johnson, C.D., Williams, J.H., and Paillet, F.L., 2004, Importance of …
As part of improvements to the USGS Water Resources Mission Area web presence to better serve you, this site is being sunset. As some content is migrated to new locations, …
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)
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, …
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 monitor and visualize subsurface bioremediation amendment emplacement and transport in near real-time. ... For more information on this project, please contact John W. Lane ...
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 …
United States Geological Survey, Office of Ground Water, Branch of Geophysics - Assessing the resolution-dependent utility of tomograms for geostatistics
OGW BG also promotes consistent guidelines for quality assurance and quality control for the collection, processing, storage, and interpretation of related geophysical data. The …
[email protected]. ABSTRACT. The Branch of Geophysical Applications and Support (BGAS), serves as the focus point for the water-resource related geophysical activities …
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. ... URL: …
John H. Williams USGS 425 Jordan Road Troy NY 12180. J. Alton Anderson USGS 425 Jordan Road Troy NY 12180. Abstract. Analysis of geophysical logs has provided critical information in the characterization of selected carbonate-rock aquifers from New York to …
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.
The USGS Office of Groundwater, Branch of Geophysics (OGW BG) is seeking undergraduate and graduate students interested in emerging geophysical methods and …
Publications > Zlotnick and others, 2010.. Mechanisms controlling variability of lake salinity in dune environments in semi-arid climate — Nebraska Sand Hills. V.A. Zlotnik ([email protected])
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 …
and Bureau de Recherches Géologiques et Minières (BRGM), France . ... Hypertext links and other references to non-USGS products, trade names, and (or) services are provided for information purposes only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content ...
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.
Borehole geophysics for contamination investigations in fractured sedimentary bedrock. WILLIAMS, John H., U. S. Geological Survey, 425 Jordan Road, Troy, NY 12180 ...
Borehole-Radar Methods -- Tools for Characterization of Fractured Rock USGS Fact Sheet 054-00 May 2000 Prepared in cooperation with the U.S. Environmental Protection Agency, Region 5
Abstract - Toward minimally invasive performance monitoring: applications of time-lapse geophysical imaging to aquifer storage and recovery and engineered remediation (USGS - U.S. Geological Survey Office of Ground Water, Branch of Geophysics)
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]
Mission. The Office of Groundwater, Branch of Geophysics (OGW BG) supports the USGS Water Mission Area by providing technical assistance to the Water Science Centers; conducting training on the use of geophysical methods and equipment; and through the development and application of hydrogeophysical techniques that enhance groundwater …
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 monitor and visualize subsurface bioremediation amendment emplacement and transport in near real-time. The project, funded by the U.S. Department of Defense Environmental ...
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 …
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)
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 …
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 Ground Water Information - Geophysics: OGW Branch of Geophysics list of publications
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).
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 …
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), …
The USGS Office of Groundwater, Branch of Geophysics (OGW BG) is seeking undergraduate and graduate students interested in emerging geophysical methods and novel applications of geophysical methods for groundwater investigations. OGW BG has opportunities for energetic and motivated students to participate in ongoing applied …
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 …
