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USGS Groundwater Information: Hydrogeophysics Branch

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If you have questions, please contact the Hydrogeophysics Branch at

Geophysical Technology Transfer (G2T)

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 science studies:

Online Geophysics Resources:

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.


Method General Borehole Surface Waterborne Airborne
Multi-method - -
Flowmeter - - - -
Electrical Resistivity -   -
Electromagnetic (EM) Induction - -   -  
Gamma - - -  
Gravity -   -  
Imaging - - -  
Magnetic - - -  
Magnetic Resonance Sounding/Nuclear Magnetic Resonance - - -  
Neutron -        
Radar   - -  
Seismic - -
Temperature -  
Misc. Resources - -  

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Related USGS Policy:

 [Photo: USGS OGW BG Scientist adjusts console during two-dimensional resistivity survey.]

USGS Water Science Centers and programs conducting geophysical investigations should be familiar with relevant USGS policies and guidance including the following Office of Groundwater (OGW) Technical Memoranda:

Historical listings of Office of Groundwater Technical Memoranda and Water Mission Area Memoranda released prior to FY2018 are available online.

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Applied Research & Publications:

 [Photo: USGS scientists working on equipment in the field.] OGW BG conducts applied research on the development and application of hydrogeophysical techniques to enhance USGS groundwater resource assessment, modeling, and monitoring activities. The applied research results are summarized in 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. Examples of recent publications include:

OGW BG also publishes online summaries of some of our recent or ongoing applied research projects. Examples include:

OGW BG occasionally profiles examples of the use of geophysics in groundwater studies by USGS Water Science Centers across the Nation.

As part of its active applied research program, OGW BG also offers numerous student research opportunities.

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Geophysical Equipment Available for USGS Use:

OGW surface, borehole, and water-borne geophysical equipment is available to USGS Water Mission Area users through OGW BG.

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Training & Support for USGS Water Mission Area:

 [Photo: USGS OGW, BG scientist works with USGS Massachusetts scientist to process water-borne continuous-resistivity data.] OGW BG provides formal and informal training to USGS offices and staff. In addition, OGW BG scientists regularly present at regional and national conferences.

For an example of what a USGS regional or Water Science Center training or support could include, read about recent training and Water Science Center support.

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Page Last Modified: Thursday, 21-Dec-2017 17:32:05 EST