Prediction of land subsidence due to groundwater withdrawal in Las Vegas Valley, Nevada
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Authors
Waichler, Scott R.
Issue Date
1991
Type
Thesis
Language
en_US
Keywords
One-dimensional Finite-difference Model , Vertical Compaction , Groundwater Withdrawal , Las Vegas Valley , Nevada , Driller's Litholigic Logs , Calibrated Constant Parameters , Vertical Hydraulic Conductivity , Virgin Specific Storage , Compacting Clay Beds , Groundwater Management , Pumping , Artificial Recharge , Land Subsidence , Mackay Theses and Dissertations Grant Collection
Alternative Title
Abstract
A one-dimensional finite-difference model that simulates vertical compaction (consolidation) due to groundwater withdrawal is applied to two sites in Las Vegas Valley, Nevada. The input to the model consists of interpreted water level records and driller's lithologic logs. The calibrated constant parameters, vertical hydraulic conductivity and virgin specific storage of the compacting clay beds, are back-calculated with historical subsidence data from survey levelings. Although there are no definitive water level or lithologic records at either site, a broad range of possible input values predicts 4 to 16 cm of subsidence at one site from 1990-2000, and 11 to 63 cm at another site during the same period. Lithologic data are the weakest component of the study and deserve priority in future modeling efforts. The model can be used as a groundwater management tool to aid in planning placement and intensity of pumping and artificial recharge in Las Vegas Valley to minimize land subsidence.
Description
Thesis Number: 2786.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
Online access for this thesis was created in part with support from the Institute of Museum and Library Services (IMLS) administered by the Nevada State Library, Archives and Public Records through the Library Services and Technology Act (LSTA). To obtain a high quality image or document please contact the DeLaMare Library at https://unr.libanswers.com/ or call: 775-784-6945.
Citation
Publisher
University of Nevada, Reno
License
In Copyright(All Rights Reserved)