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The USGS Office of Groundwater, Branch of Geophysics (OGW BG) is seeking undergraduate and graduate students interested in emerging geophysical methods and …
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).
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), …
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, …
Publications > Zlotnick and others, 2010.. Mechanisms controlling variability of lake salinity in dune environments in semi-arid climate — Nebraska Sand Hills. V.A. Zlotnik (vzlotnik1@unl.edu)
phaeni@usgs.gov. ABSTRACT. The Branch of Geophysical Applications and Support (BGAS), serves as the focus point for the water-resource related geophysical activities …
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.
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 …
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.
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.
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, …
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 …
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 ...
OGW BG also promotes consistent guidelines for quality assurance and quality control for the collection, processing, storage, and interpretation of related geophysical data. The …
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 …
USGS Ground Water Information - Geophysics: OGW Branch of Geophysics list of publications
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, …
United States Geological Survey, Office of Ground Water, Branch of Geophysics - Assessing the resolution-dependent utility of tomograms for geostatistics
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 …
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, jdabraha@usgs.gov
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 …
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 …
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 …
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 ...
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 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 …
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 …
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 …
The Office of Ground Water, Branch of Geophysics (OGW BG) conducts applied geophysical research to support studies of the Nation's water resources. Research at …
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)
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 …
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, …
Borehole geophysics for contamination investigations in fractured sedimentary bedrock. WILLIAMS, John H., U. S. Geological Survey, 425 Jordan Road, Troy, NY 12180 ...
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.