Hydrologic Assessment and Simulations of Groundwater Conditions in Arivaca Basin, Pima County, Arizona.

Persistent Link:
http://hdl.handle.net/10150/191297
Title:
Hydrologic Assessment and Simulations of Groundwater Conditions in Arivaca Basin, Pima County, Arizona.
Author:
Schorr, Staffan Wagner.
Issue Date:
2005
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:
Meeting the water needs of humans while protecting riparian habitat and wildlife is a significant challenge for land use and water resources planning in Southern Arizona. Arivaca Creek is one of the few remaining perennial streams and wetland ecosystems in Pima County and supports one of the largest hydro-meso-riparian corridors. Arivaca is also a rural community with a growing population. A hydrological assessment was conducted and a groundwater flow model was created to better understand the dynamics of the Arivaca groundwater basin. A groundwater flow model had not been created for this basin prior to this investigation. A conceptual model was developed using ArcView Geographic Information System (GIS) software and Groundwater Modeling System (GMS) software to aid in model input and model calibration. GMS was used to convert the GIS-based conceptual information into the input files needed to run the numerical finite-difference groundwater flow model MODFLOW. A new evapotranspiration MODFLOW module (RIP-ET) was used to represent riparian evapotranspiration in the model. A steady-state model was developed for the years prior to 1975 in order to calibrate model inputs and produce initial hydraulic head conditions for the transient analysis. A transient analysis is performed over the period 1975 to 2002 during which stresses to the system are changing over time. Model results are consistent with observed data, indicating the model's utility as a management tool to assess possible land use scenarios and their impacts on riparian habitat along Arivaca Creek and the water resources of the Arivaca groundwater basin.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Water-supply -- Arizona -- Arivaca.; Watersheds -- Arizona -- Arivaca.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Maddock, Thomas

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleHydrologic Assessment and Simulations of Groundwater Conditions in Arivaca Basin, Pima County, Arizona.en_US
dc.creatorSchorr, Staffan Wagner.en_US
dc.contributor.authorSchorr, Staffan Wagner.en_US
dc.date.issued2005en_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.abstractMeeting the water needs of humans while protecting riparian habitat and wildlife is a significant challenge for land use and water resources planning in Southern Arizona. Arivaca Creek is one of the few remaining perennial streams and wetland ecosystems in Pima County and supports one of the largest hydro-meso-riparian corridors. Arivaca is also a rural community with a growing population. A hydrological assessment was conducted and a groundwater flow model was created to better understand the dynamics of the Arivaca groundwater basin. A groundwater flow model had not been created for this basin prior to this investigation. A conceptual model was developed using ArcView Geographic Information System (GIS) software and Groundwater Modeling System (GMS) software to aid in model input and model calibration. GMS was used to convert the GIS-based conceptual information into the input files needed to run the numerical finite-difference groundwater flow model MODFLOW. A new evapotranspiration MODFLOW module (RIP-ET) was used to represent riparian evapotranspiration in the model. A steady-state model was developed for the years prior to 1975 in order to calibrate model inputs and produce initial hydraulic head conditions for the transient analysis. A transient analysis is performed over the period 1975 to 2002 during which stresses to the system are changing over time. Model results are consistent with observed data, indicating the model's utility as a management tool to assess possible land use scenarios and their impacts on riparian habitat along Arivaca Creek and the water resources of the Arivaca groundwater basin.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshWater-supply -- Arizona -- Arivaca.en_US
dc.subject.lcshWatersheds -- Arizona -- Arivaca.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.chairMaddock, Thomasen_US
dc.identifier.oclc214288081en_US
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