MODFLOW Ground-Water Model: User Guide to the Subsidence and Aquifer-System Compaction Package (SUB-WT) for Water-Table Aquifers (Paperback) (ISBN-13: 9781249182276)

A new computer program was developed to simulate vertical compaction in models of regional ground-water flow. The program simulates ground-water storage changes and compaction in discontinuous interbeds or in extensive confining units, accounting for stress-dependent changes in storage properties. The new program is a package for MODFLOW, the U.S. Geological Survey modular finite-difference ground-water flow model. Several features of the program make it useful for application in shallow, unconfined flow systems. Geostatic stress can be treated as a function of water-table elevation, and compaction is a function of computed changes in effective stress at the bottom of a model layer. Thickness of compressible sediments in an unconfined model layer can vary in proportion to saturated thickness.

Author: United States Geological Survey (Usgs)
ISBN-10: 1249182271
ISBN-13: 9781249182276
Publisher: Bibliogov
Language: English
Published: 07/21/2012
Pages: 56
Format: Paperback
Weight: 0.26lbs
Size: 9.69h x 7.44w x 0.12d