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_ScienceBase Catalog
__USGS Data Release Products
___Gravity data releases
____Data from "Time-lapse gravity data for monitoring and modeling artificial recharge through a thick unsaturated zone"
The U.S. Geological Survey Southwest Gravity Program aims to provide high-precision time-lapse gravity (repeat microgravity) data for hydrologic studies in the southwestern US. Recent projects include monitoring recharge underneath ephemeral-stream channels, monitoring aquifer-storage change in unconfined and compressible aquifers, measuring preferential storage change at an artificial-recharge facility, and estimating specific yield through the correlation of gravity and water-level change in wells. Projects range in scale from the site-specific (individual recharge basins) to alluvial basin (e.g., the Tucson and Avra Valley groundwater basins). Southwest Gravity Program Data Releases Fact sheet about hydrologic...
