Use of an Integrated Hydrologic Model to Assess the Effects of Pumping on Streamflow in the Lower Rio Grande

Persistent Link:
http://hdl.handle.net/10150/556878
Title:
Use of an Integrated Hydrologic Model to Assess the Effects of Pumping on Streamflow in the Lower Rio Grande
Author:
Knight, Jacob
Issue Date:
2015
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Irrigation practices in the Rincon Valley and Mesilla Basin of the Lower Rio Grande have evolved over the last century into a complex setting of transboundary conjunctive use. Three major water users have surface and groundwater appropriation rights regulated by compact, treaty, and operating rules and agreements. The analysis of complex relationships between supply/demand components and the effects of surface-water and groundwater use requires an integrated hydrologic model to track all of the use and movement of water. Models previously developed for the region relied on a priori estimates of net irrigation flux or externally-calculated landscape water budgets. This study instead utilizes a MODFLOW model with the Farm Process (MF-FMP), which directly couples the surface-water and groundwater regimes through simulation of landscape processes. This allows the assessment of stream-aquifer interactions in the context of fulfilling irrigation demands with variable supplies of surface water allotments and supplemental groundwater pumping. MF-FMP also simulates direct uptake of groundwater by crops, an important utility for modeling a region with significant acreage dedicated to pecan orchards, a phreatophytic crop. The abilities and limitations of this new model are explored through scenario simulations meant to estimate streamflow depletions caused by historic pumping levels.
Type:
text; Electronic Thesis
Keywords:
capture; conjunctive use; hydrologic model; Rio Grande; streamflow; Hydrology; base case
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Hydrology
Degree Grantor:
University of Arizona
Advisor:
Maddock, Thomas; Hanson, Randall T.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleUse of an Integrated Hydrologic Model to Assess the Effects of Pumping on Streamflow in the Lower Rio Grandeen_US
dc.creatorKnight, Jacoben
dc.contributor.authorKnight, Jacoben
dc.date.issued2015en
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractIrrigation practices in the Rincon Valley and Mesilla Basin of the Lower Rio Grande have evolved over the last century into a complex setting of transboundary conjunctive use. Three major water users have surface and groundwater appropriation rights regulated by compact, treaty, and operating rules and agreements. The analysis of complex relationships between supply/demand components and the effects of surface-water and groundwater use requires an integrated hydrologic model to track all of the use and movement of water. Models previously developed for the region relied on a priori estimates of net irrigation flux or externally-calculated landscape water budgets. This study instead utilizes a MODFLOW model with the Farm Process (MF-FMP), which directly couples the surface-water and groundwater regimes through simulation of landscape processes. This allows the assessment of stream-aquifer interactions in the context of fulfilling irrigation demands with variable supplies of surface water allotments and supplemental groundwater pumping. MF-FMP also simulates direct uptake of groundwater by crops, an important utility for modeling a region with significant acreage dedicated to pecan orchards, a phreatophytic crop. The abilities and limitations of this new model are explored through scenario simulations meant to estimate streamflow depletions caused by historic pumping levels.en
dc.typetexten
dc.typeElectronic Thesisen
dc.subjectcaptureen
dc.subjectconjunctive useen
dc.subjecthydrologic modelen
dc.subjectRio Grandeen
dc.subjectstreamflowen
dc.subjectHydrologyen
dc.subjectbase caseen
thesis.degree.nameM.S.en
thesis.degree.levelmastersen
thesis.degree.disciplineGraduate Collegeen
thesis.degree.disciplineHydrologyen
thesis.degree.grantorUniversity of Arizonaen
dc.contributor.advisorMaddock, Thomasen
dc.contributor.advisorHanson, Randall T.en
dc.contributor.committeememberMaddock, Thomasen
dc.contributor.committeememberHanson, Randall T.en
dc.contributor.committeememberMeixner, Thomasen
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.