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Heavy

April 20, 2023

Heavy is a Fortran program for calculating the change in gravity caused by the change in groundwater storage as predicted by a MODFLOW groundwater-flow model.
Gravity change is calculated relative to the initial time step at user-specified locations (e.g., measurement locations). At each location, the gravitational attraction is the sum of the attraction caused by storage change (confined or unconfined) within each model cell and layer.
Heavy is intended to be incorporated into workflows for parameter estimation such as PEST++.

Publication Year 2023
Title Heavy
DOI 10.5066/P9IIHXN3
Authors Jeffrey R Kennedy, Joshua D Larsen
Product Type Software Release
Record Source USGS Asset Identifier Service (AIS)
USGS Organization Arizona Water Science Center, Tucson Office
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