USGS Groundwater Information: Hydrogeophysics Branch
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 firstname.lastname@example.org
[an error occurred while processing this directive] Internal USGS users should bookmark our new HGB internal home page: https://water.usgs.gov/usgs/espd/hgb/
As part of OGW BG geophysical site characterization research through the USGS Toxic Substances Hydrology Program in 2000-2001, modified square-array resistivity sounding experiments were conducted at the Mirror Lake fractured rock research site in Hubbard Brook Experimental Forest, New Hampshire.
A newly developed azimuthal resisitivity sounding method was tested at the Mirror Lake fractured-rock field site. The new array should make it possible to discriminate between azimuthal resisitivity changes induced by steeply dipping sets of fractures and resistivity changes induced by a dipping bedrock surface or lateral resistivity changes.
View the online photo gallery from this project.
This research was conducted through the USGS Toxic Substances Hydrology Program by John W. Lane, Jr. (USGS, OGW Branch of Geophysics) and Fred Day-Lewis (Bucknell University) with assistance from OGW BG staff.
For more information on this project, please contact John W. Lane, Jr. (Chief, USGS OGW Branch of Geophysics) or Frederick Day-Lewis (Hydrologist, USGS OGW Branch of Geophysics), or call the Branch of Geophysics at (860)487-7402.[an error occurred while processing this directive]
For more information about USGS Toxics Substances Hydrology Program research Mirror Lake, see the Mirror Lake Toxic Substances Hydrology Program web site.