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Geophysical Technology Transfer (G2T)

A primary goal of the Office of Ground Water, Branch of Geophysics (OGW BG) mission is to transfer geophysical knowledge and experience. The goal of this Geophysical Technology Transfer (G2T) section is to provide USGS scientists with web-based resources that will support the development and implementation of earth science studies:

• Online Information & Resources
• Overviews of methods and (or) tools
• Additional online resources
• Related USGS Publications
• Geophysical Equipment Available to the USGS
• Branch Workshops & Courses
• Branch Research & Publications

• Continuous-resistivity profiling
• Magnetic resonance sounding
• Multi-echo acoustic imaging
• Spectral gamma logging
• Vertical flowmeter logging

Additional resources include:

• Summary of selected borehole geophysical logging methods
• Seismic blasting safety

• Advances in borehole geophysics for ground-water investigations: Williams, J., and Lane, J.W., Jr., 1998, U.S. Geological Survey Fact Sheet 002-98, 6 p.
• Application of drilling, coring and sampling techniques to test holes and wells: Shuter, Eugene and Teasdale, W.E., 1989, U.S. Geological Survey Techniques of Water-Resources Investigations, book 2, chap. F1.
• Application of seismic-refraction techniques to hydrologic studies: Haeni, F.P., 1988, U.S. Geological Survey Techniques of Water-Resources Investigations, book 2, chap. D2, 86 p.)
• Application of surface geophysics to ground-water investigations: Zohdy, A.A.R., Eaton, G.P., and Mabey, D.R., 1974, Techniques of Water-Resources Investigations of the United States Geological Survey, book 2, chap. D1, 116 p.
• Borehole geophysics applied to ground-water investigations: Keys, W.S., 1990, U.S. Geological Survey Techniques of Water-Resources Investigations, book 2, chap. E-2, 149 p.
• Borehole-radar methods -- tools for characterization of fractured rock: Singha, Kamini; Lane, J.W., Jr.; and Kimball, Kari, 2000, U.S. Geological Survey Fact Sheet 054-00, 4 p.
• Characterizing ground-water chemistry and hydraulic properties of fractured-rock aquifers using the multifunction bedrock-aquifer transportable testing tool (BAT3): Shapiro, A.M., 2001, U.S. Geological Survey Fact Sheet FS-075-01, 4 p.
• Fractured-rock aquifers--Understanding an increasingly important source of water: Shapiro, A.M., 2002, U.S. Geological Survey Fact Sheet 112-02, 2 p.
• Introduction to Potential Fields: Gravity (68K PDF):1997, U.S. Geological Survey Fact Sheet 0239-95
• Introduction to Potential Fields: Magnetics (40K PDF):1997, U.S. Geological Survey Fact Sheet 0236-95

OGW surface, borehole, and water-borne geophysical equipment is available to USGS users through the Office of Ground Water, Branch of Geophysics.

OGW BG provides formal and informal training to USGS offices and staff. A tentative schedule of courses and workshops is available online. In addition, staff regularly offer formal courses at USGS Water Science Centers or presentations and workshops at regional and national conferences.

For an example of what a USGS regional or Water Science Center training or support could include, see the descriptions of recent training and recent district support available online.

Did you participate in a recent course? If so, please take a few minutes to complete our online course evaluation form.

The Branch of Geophysics summarizes its research results through USGS reports and fact sheets, as well as journal and proceedings articles. Many of these publications are available online through the publications section of our web site. In addition, samples of some meeting and conference presentations are also available online.

OGW BG also publishes summaries of some of our applied research projects:

• OGW BG applied research conducted in conjunction with the USGS Toxics Substances Hydrology Program
• BG applied research at the University of Connecticut landfill study area.

As part of its active applied research program, the Branch of Geophysics offers numerous student research opportunities.