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miami1343158292.pdf (3.78 MB)
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QUANTIFYING RECHARGE DURING THE LAST GLACIAL MAXIMUM IN THE DEATH VALLEY REGIONAL FLOW SYSTEM
Author Info
Hecker, Joel W.
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=miami1343158292
Abstract Details
Year and Degree
2012, Master of Science, Miami University, Geology and Environmental Earth Science.
Abstract
Paleo-hydrologic surface deposits signify wetter than present conditions during the Last Glacial Maximum (LGM) in the American Southwest. Detailed knowledge exists about the location of these surface deposits, as well as the climate and hydrologic conditions during the LGM. Using groundwater modeling programs in conjunction with paleohydrologic deposits allowed for an opportunity to quantitatively characterize past climate for a 100,000 km2 area near Death Valley, approximating recharge and the level of the potentiometric surface. Simulations using the Death Valley Regional Flow System model indicated that the average recharge rate in the model domain during the LGM was approximately 1.63 cm/yr, or 7.71 times the calibrated modern recharge rate. As a result, the simulated potentiometric surface was generally 0-50m higher throughout the model domain. Assuming LGM precipitation was twice the modern value (Forester et al., 1999), ~6.80% of total precipitation became recharge during the LGM, compared to only ~1.75% during modern day.
Committee
Jason Rech (Advisor)
Jonathan Levy (Advisor)
Bill Renwick (Committee Member)
Wayne Belcher (Other)
Pages
51 p.
Subject Headings
Geological
;
Geology
;
Hydrologic Sciences
;
Hydrology
Keywords
Death Valley Regional Flow System
;
Recharge
;
Last Glacial Maximum
;
Las Vegas
;
Potentiometric Surface
;
Water
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Citations
Hecker, J. W. (2012).
QUANTIFYING RECHARGE DURING THE LAST GLACIAL MAXIMUM IN THE DEATH VALLEY REGIONAL FLOW SYSTEM
[Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1343158292
APA Style (7th edition)
Hecker, Joel.
QUANTIFYING RECHARGE DURING THE LAST GLACIAL MAXIMUM IN THE DEATH VALLEY REGIONAL FLOW SYSTEM.
2012. Miami University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=miami1343158292.
MLA Style (8th edition)
Hecker, Joel. "QUANTIFYING RECHARGE DURING THE LAST GLACIAL MAXIMUM IN THE DEATH VALLEY REGIONAL FLOW SYSTEM." Master's thesis, Miami University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=miami1343158292
Chicago Manual of Style (17th edition)
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Document number:
miami1343158292
Download Count:
392
Copyright Info
© 2012, some rights reserved.
QUANTIFYING RECHARGE DURING THE LAST GLACIAL MAXIMUM IN THE DEATH VALLEY REGIONAL FLOW SYSTEM by Joel W. Hecker is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Miami University and OhioLINK.