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Title: Near-Surface Gravity Survey
Description: A USGS hydrologist prepares equipment to conduct a gravity survey to evaluate small variations in the earth's gravity field. The USGS Office of Groundwater Branch of Geophysics develops and tests new tools and field methods to support USGS analysis of groundwater flow systems.
Location: CA, USA
Date Taken: 3/1/2007
Photographer: USGS Office of Groundwater, Branch of Geophysics (vog.sgsu@retsambeW_GB_WGO_W-SG), U.S. Geological Survey
Usage: This image is public domain/of free use. Please refer to the USGS Copyright section for more details.
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File Size (original): JPEG Image - 2.11 MB
Dimensions: 2592 x 1944
Resolution: 180 dpi

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Tags: equipment geophysics gravimeter gravity groundwater hydrogeophysics hydrology personnel research scientists water