Show simple item record

dc.contributor.authorDoolen, Matthew Louis.
dc.creatorDoolen, Matthew Louis.en_US
dc.date.accessioned2011-11-28T13:51:32Z
dc.date.available2011-11-28T13:51:32Z
dc.date.issued1994en_US
dc.identifier.urihttp://hdl.handle.net/10150/191338
dc.description.abstractA sensitivity analysis was performed for Tucson Water's Central Wellfield (CWF) flow model to determine response to changes in aquifer and stress parameters and to evaluate various comparative methods. Changes were made to hydraulic conductivity, storage coefficients, anisotropy factors, recharge rates, évapotranspiration rates and depths, layer thicknesses, and groundwater pumping. Water table elevation maps and cross sections, head residual maps, head crossplots, hydrographs, and residual statistics were used to compare heads from each sensitivity run with the calibrated steady state and transient state models. Water budgets were also compared. The CWF model is most sensitive to recharge rate changes, storativity decrease, layer thickness, and an increase in the row-to-column anisotropy factor, but is relatively robust to changes in other parameters. No single comparative method should serve as the sole basis for determining model sensitivity to parameter changes.
dc.language.isoenen_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.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Arizona -- Tucson Region.en_US
dc.subject.lcshGroundwater flow -- Arizona -- Tucson Region -- Mathematical models.en_US
dc.subject.lcshGroundwater flow -- Analysis.en_US
dc.titleSensitivity Analysis Methods and Results for Tucson Water's Central Wellfield Groundwater Flow Model, Tucson Basin, Southeastern Arizonaen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.contributor.chairMaddock, T.en_US
dc.identifier.oclc213470761en_US
thesis.degree.grantorUniversity of Arizonaen_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.nameM.S.en_US
dc.description.notehydrology collectionen_US
refterms.dateFOA2018-06-28T21:15:53Z
html.description.abstractA sensitivity analysis was performed for Tucson Water's Central Wellfield (CWF) flow model to determine response to changes in aquifer and stress parameters and to evaluate various comparative methods. Changes were made to hydraulic conductivity, storage coefficients, anisotropy factors, recharge rates, évapotranspiration rates and depths, layer thicknesses, and groundwater pumping. Water table elevation maps and cross sections, head residual maps, head crossplots, hydrographs, and residual statistics were used to compare heads from each sensitivity run with the calibrated steady state and transient state models. Water budgets were also compared. The CWF model is most sensitive to recharge rate changes, storativity decrease, layer thickness, and an increase in the row-to-column anisotropy factor, but is relatively robust to changes in other parameters. No single comparative method should serve as the sole basis for determining model sensitivity to parameter changes.


Files in this item

Thumbnail
Name:
azu_td_hy_0087_sip1_w.pdf
Size:
10.42Mb
Format:
PDF
Description:
azu_td_hy_0087_sip1_w.pdf

This item appears in the following Collection(s)

Show simple item record