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 is an ongoing project, building on
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OGW BG develops online technical information and resources for USGS offices and cooperators about hydrogeophysical techniques that enhance groundwater resource assessment, modeling, and monitoring. The table below provides links to USGS resources on hydrogeophysics methods, applications, and tools.
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OGW BG applied geophysical logging research at NAWC is focused on the acquisition of comprehensive suites of standard and advanced borehole geophysical logs. The geophysical data are entered into a database
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OGW BG staff give frequent presentations and demonstrations at USGS meetings, conferences, USGS Water Science Centers, and universities. Research results are published in USGS reports and fact sheets, conference proceedings, and
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:USGS OGW BGUsgs GeophysicsGroundwater BgGeophysical MethodsMay 2000. Prepared in cooperation with the U.S. Environmental Protection Agency, Region 5. By Kamini Singha, Kari Kimball, and John W. Lane, Jr. Introduction. Locating and
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:USGS OGW BGGeophysical MethodsOGW BG uses a variety of geophysical methods and techniques in its ongoing research and training courses. Below is a listing of the surface, borehole, and water-borne geophysical methods supported by OGW BG,
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USGS Office of Ground Water, Branch of Geophysics, 11 Sherman Pl, U-5015, Storrs, Connecticut 06269, phone: 860-487-7402, fax 860-487-8802 Peter K. Joesten is a Hydrologist with the USGS OGW, BG in Storrs, Connecticut.
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· USGS publication on Characterizing fractures in a bedrock outcrop using ground-penetrating radar at Mirror Lake, New Hampshire (USGS Office of Ground Water, Branch of Geophysics) USGS OGW, BG: Characterizing fractures in a bedrock outcrop using ground-penetrating radar at Mirror Lake, Grafton County, New Hampshire
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:USGS OGW BGUsgs GeophysicsGroundwater BgGeophysical MethodsGet hands-on applied research experience in near-surface geophysics! The USGS Office of Groundwater, Branch of Geophysics (OGW BG) is seeking undergraduate and graduate
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OGW BG has collaborated with numerous students on undergraduate-, masters-, and PhD-level applied research. Examples of recent graduate-level research conducted with OGW BG include: Electrical resistivity tomography (ERT) for mapping aquifer heterogeneity
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Borehole-radar methods, including cross-hole tomography and single-hole reflection surveys, were successfully used to detect a saline tracer and interpret permeable fractures in the FSE 1-4 well cluster at Mirror Lake, Grafton County, New Hampshire, USA. The tomograms and reflection surveys successfully detected the presence of the saline
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As part of its applied research initiatives, the USGS Office of Ground Water, Branch of Geophysics (OGW BG) investigated the application of geophysical measurements to help verify and measure rate-limited mass transfer (RLMT), which is thought to be an important control on solute transport in heterogeneous geologic media.
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· CONCLUSIONS. 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
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OGW BG also conducted research on the addition of tracers in order to alter the electrical and magnetic properties of the vegetable oil. Three separate injections at the NIROP site were monitored: one of pure vegetable oil, one of vegetable oil mixed with ferrofluids, and one of vegetable oil mixed with colloidal iron powder.
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· 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. presented by F.P. Haeni
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As part of its applied research initiatives, the USGS Office of Ground Water, Branch of Geophysics (OGW BG) conducted research on the use of geophysical methods to map aquifer heterogeneity at the USGS Toxic Substances Hydrology Program Massachusetts Military Reservation (MMR) research site, Cape Cod, Massachusetts.
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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
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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
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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
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As part of its applied research initiatives, the USGS Office of Ground Water, Branch of Geophysics (OGW BG) conducted research on the use of geophysical methods to map aquifer heterogeneity at the USGS Toxic
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As part of its applied research initiatives in FY2004, the USGS Office of Ground Water, Branch of Geophysics (OGW BG) continued analysis of geophysical data from the FY2002 and FY2003 monitoring of a steam-injection remediation pilot study at the Loring
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Directions to the OGW Branch of Geophysics Office U.S. Geological Survey Branch of Geophysics 11 Sherman Place, Unit 5015 University of Connecticut Storrs Mansfield, CT 06269 (860) 487-7402 Travel Map Driving Directions From Boston, Massachusetts:
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OGW BG also conducted research on the addition of tracers in order to alter the electrical and magnetic properties of the vegetable oil. Three separate injections at the NIROP site were monitored: one of pure vegetable oil, one of vegetable oil mixed with ferrofluids, and one of vegetable oil mixed with colloidal iron powder.
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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
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OGW BG uses a variety of geophysical methods and techniques in its ongoing research and training courses. Below is a listing of the surface, borehole, and water-borne geophysical methods supported by OGW BG, including emerging techniques under development. The Branch also supports selected methods for hydraulic testing in
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· Ground-penetrating radar (GPR) has been used by the USGS in hydrologic, geologic, environmental, and bridge-scour studies by floating antennas on water or mounting antennas in boats. GPR methods were developed to measure and monitor remotely the cross-sectional area of rivers by suspending a 100-megahertz (MHz) radar
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OGW BG applied geophysical logging research at NAWC is focused on the acquisition of comprehensive suites of standard and advanced borehole geophysical logs. The geophysical data are entered into a database accessible by USGS personnel involved in research at the NAWC site in order to support integrated, interdisciplinary research.
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ABSTRACT. Borehole- and surface-geophysical methods were used to characterize the hydrogeology and the effects of blast fracturing an in-situ recovery trench in a contaminated fractured-bedrock aquifer. The recovery trench is located at the former fire-training area of Loring Air Force Base in Aroostook County, Maine.
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:USGS OGW BGUsgs GeophysicsIntroduction. Principles of surface-geophysical techniques. Equipment and modification. Data collection near bridge piers. Processing techniques applied to surface- geophysical
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As part of 2000-2001 OGW BG site characterization research through the USGS Toxic Substances Hydrology Program, resistivity and electromagnetic measurements of tree conductivity were made near the University of Connecticut landfill, Storrs, Connecticut.
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