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 …
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United States Geological Survey, Office of Ground Water, Branch of Geophysics: Proton Magnetic Resonance Sounding (MRS) (nuclear magnetic resonance) geophysical method overview.
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USGS has been a leader in advancing the use of hydrogeophysics to study groundwater/surface-water exchange for decades via methods and software …
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The multi-echo acoustic televiewer (ATV) is a borehole geophysical probe that uses the acoustic method. The multi-echo ATV tool works similarly to regular ATV tools and is used to generate high …
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Applied Geophysical Research. 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 the Branch is focused on the development and testing of new and emerging geophysical methods to image near-surface geologic …
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In 2006 the USGS Office of Groundwater, Branch of Geophysics (OGW BG) conducted a technology demonstration and evaluation project in Waquoit Bay, East Falmouth, …
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Page title: USGS OGW, BG: Using Surface Geophysics for Bridge Scour Detection: Keywords: U.S Geological Survey USGS Office of Ground Water Branch of Geophysics surface geophysical techniques used to detect existing and infilled scour holes near bridge piers ground-penetrating radar GPR continuous seismic-reflection profiling …
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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 …
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Overview. The USGS Office of Groundwater, Branch of Geophysics (OGW BG) has collaborated on multi-year applied research to develop and demonstrate geophysical strategies to measure mass-transfer parameters over a range of spatial scales and to provide geophysical estimates of mass-transfer parameters for Hanford 300 Area …
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Overview. 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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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 …
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The Office of Groundwater, Branch Of Geophysics (OGW BG) regularly offers formal courses or workshops at USGS Water Science Centers or at regional and national conferences. USGS formal training courses are …
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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).
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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 novel applications of geophysical methods for groundwater investigations. OGW BG has opportunities for energetic and motivated students to participate in ongoing applied …
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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, users will be redirected automatically. In the interim, these pages are not being updated. If you have questions, please contact the Hydrogeophysics Branch at …
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Paper: Cross-borehole flow tests and insights into hydraulic connections in fractured mudstone and sandstone at VOC-contaminated bedrock research site in west-central New Jersey (USGS - U.S. Geological Survey Office of Ground Water, Branch of …
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Applied geophysical research at OGW BG focuses on the development and modification of surface- and borehole-geophysical characterization and monitoring methods, and the testing of newly developed and emerging geophysical technologies. This work is supported by the Office of …
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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.
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developing a hydrogeologic framework, monitoring dam removal, delineating of sediment types, and. mapping sub-bottom contamination plumes. CRP data complement other water-borne …
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Temperature of borehole fluid; differential temperature (rate of change of the temperature) is calculated. 1. 1. 1. Heat-pulse, electromagnetic, and spinner flowmeter. Map fluid flow regime and transmissive fractures in the borehole. Direction and magnitude of vertical flow within the borehole. 3. 3.
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The Latest Earthquakes application supports most recent browsers, view supported browsers. If the application does not load, try our legacy Latest Earthquakes application.
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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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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 antenna from …
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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 …
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Current trends in relation to hydrogeophysics and water science focus on three main areas: properties, processes, and scale. This is an excerpt from the U.S. Geological Survey Water Science Strategy – Observing, Understanding, Predicting, and Delivering Water Science to the Nation, released April 2013.
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For more information about the FO-DTS project, contact Fred Day- ( [email protected] or 860-487-7402 x21) at the OGW, Branch of Geophysics. For more information on the Fish Creek investigation, contact Cheryl Eddy Miller ( [email protected] or 307-775-9167) or Jerrod Wheeler ( [email protected] or 307-856-3771 x12) at the …
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By Maryland-Delaware-D.C. Water Science Center June 28, 2020. Contaminant Fate and Transport. effective solubility assessment for organic analytes in …
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A primary goal of the Office of Groundwater, Branch of Geophysics (OGW BG) mission is to transfer geophysical knowledge and experience to USGS offices and programs. This Geophysical Technology Transfer (G2T) web page provides USGS scientists with online resources to support the development and implementation of USGS earth …
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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, …
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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 …
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The USGS computer program, FLASH (Flow Log Analysis for Single Holes), provides an easy-to-use utility for the quantitative analysis of flow logs collected in single boreholes. The code is based on a multi-layer, analytical solution for steady-state radial flow to a single borehole. FLASH provides a simple graphical user interface (GUI) for ...
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For more information on this project, please contact John W. Lane, Jr. (Chief, USGS OGW Branch of Geophysics) or Carole Johnson (Hydrologist, USGS OGW Branch of Geophysics), or call the Branch of Geophysics at (860)487-7402. USGS Programs and Offices can learn more about geophysical equipment available for USGS use and training and support from ...
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Introduction. Vertical flowmeter logging measures vertical movement of fluid in a borehole. Flowmeter data can provide critical information for the design and interpretation of hydraulic testing and chemical sampling in groundwater investigations, helping to refine site conceptual models. The results of flowmeter logging can also be …
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