Quantifying baseflow inputs to the San Pedro River : a geochemical approach

Persistent Link:
http://hdl.handle.net/10150/192125
Title:
Quantifying baseflow inputs to the San Pedro River : a geochemical approach
Author:
Baillie, Matthew Nelson.
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:
The Upper San Pedro River Basin (Arizona, U.S.A.) contains one of the few remaining desert riparian areas in the Southwest. This study characterizes and quantifies the water sources that contribute to riparian groundwater and sustain river baseflow using a suite of geochemical tracers including stable and radioactive isotopes and anions. Results indicate that of the possible sources, basin groundwater from the west and local recharge of monsoon floodwaters are the most significant water sources to the riparian system. Using a simple two end-member mixing model, riparian groundwater varies from 10 to 90% basin groundwater whereas baseflow ranges from 0 to 55%; the percentage is well correlated with gaining (basin groundwater dominated) and losing reaches (monsoon dominated). These results highlight the importance of monsoon floodwater recharge as a water source for desert riparian systems, a fact that future water management decisions need to address.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater flow -- Arizona.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Ekwurzel, Brenda

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleQuantifying baseflow inputs to the San Pedro River : a geochemical approachen_US
dc.creatorBaillie, Matthew Nelson.en_US
dc.contributor.authorBaillie, Matthew Nelson.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.abstractThe Upper San Pedro River Basin (Arizona, U.S.A.) contains one of the few remaining desert riparian areas in the Southwest. This study characterizes and quantifies the water sources that contribute to riparian groundwater and sustain river baseflow using a suite of geochemical tracers including stable and radioactive isotopes and anions. Results indicate that of the possible sources, basin groundwater from the west and local recharge of monsoon floodwaters are the most significant water sources to the riparian system. Using a simple two end-member mixing model, riparian groundwater varies from 10 to 90% basin groundwater whereas baseflow ranges from 0 to 55%; the percentage is well correlated with gaining (basin groundwater dominated) and losing reaches (monsoon dominated). These results highlight the importance of monsoon floodwater recharge as a water source for desert riparian systems, a fact that future water management decisions need to address.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater flow -- Arizona.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.chairEkwurzel, Brendaen_US
dc.contributor.committeememberHogan, Jamesen_US
dc.identifier.oclc217311107en_US
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