Modeling nitrates in projecting the future ground-water quality of the Cortaro area, Arizona

Persistent Link:
http://hdl.handle.net/10150/191945
Title:
Modeling nitrates in projecting the future ground-water quality of the Cortaro area, Arizona
Author:
Osborn, Michael David,1947-
Issue Date:
1987
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:
The Discrete State Compartment (DSC) Model was used to model ground-water quality in the Cortaro Area, Arizona. The objective was to project ground-water quality to the year 2005 in the area in response to changing land use and increasing population. In modeling various scenarios, the constituent nitrate was used as the indicator of water quality. The 31 compartment (cell) design was based upon knowledge of the ground-water flow system, current and historic land use, ground-water elevation changes through time, and estimates for ground-water recharge and aquifer parameters. A modification of the computer code was done in order to more directly address excessive pumping in certain cells which can cause dewatering. Trends in nitrate concentrations among selected cells were compared graphically. Every scenario showed improvement in water quality of the ground-water system through time, based on the land uses defined for the scenarios.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater -- Quality -- Arizona -- Tucson Region.; Water -- Arizona -- Tucson Region -- Nitrogen control.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Simpson, Eugene S.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleModeling nitrates in projecting the future ground-water quality of the Cortaro area, Arizonaen_US
dc.creatorOsborn, Michael David,1947-en_US
dc.contributor.authorOsborn, Michael David,1947-en_US
dc.date.issued1987en_US
dc.publisherThe University of Arizona.en_US
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_US
dc.description.abstractThe Discrete State Compartment (DSC) Model was used to model ground-water quality in the Cortaro Area, Arizona. The objective was to project ground-water quality to the year 2005 in the area in response to changing land use and increasing population. In modeling various scenarios, the constituent nitrate was used as the indicator of water quality. The 31 compartment (cell) design was based upon knowledge of the ground-water flow system, current and historic land use, ground-water elevation changes through time, and estimates for ground-water recharge and aquifer parameters. A modification of the computer code was done in order to more directly address excessive pumping in certain cells which can cause dewatering. Trends in nitrate concentrations among selected cells were compared graphically. Every scenario showed improvement in water quality of the ground-water system through time, based on the land uses defined for the scenarios.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Quality -- Arizona -- Tucson Region.en_US
dc.subject.lcshWater -- Arizona -- Tucson Region -- Nitrogen control.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairSimpson, Eugene S.en_US
dc.identifier.oclc213339861en_US
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