Persistent Link:
http://hdl.handle.net/10150/191362
Title:
Paleoflood hydrology of the alluvial Salt River, Tempe, Arizona
Author:
Fuller, Jonathan Edward.
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 paleoflood history of the lower Salt River was documented using slackwater sedimentation techniques. Slackwater sediments are finegrained alluvial deposits which accumulate in zones of ineffective flow along the margins of flood channels. The tops of slackwater deposits can be used as a proxy for the water surface of the flood responsible for their deposition. Slackwater deposits used in this study also included post-abandonment fill in ancient Hohokam Indian irrigation canals. Paleodischarges were estimated using the HEC-II water-surface profile computer model. Cross-section information for the prehistoric Salt River channel was derived from a 1904 contour map of the Salt River Valley. This study is the first application of the slackwater technique to an alluvial river. Flood deposits dating from 1100 years before present to 1976 were analyzed. HEC-II modelling indicates that 27 floods during that time period exceeded the bankful discharge of 175,000 cfs (5000 cms). Two floods exceeded 420,000 cfs (11,900 cms). One of these large floods occurred around A.D. 890. The other occurred within the past 410 years. The largest flood of the historical era was the February, 1891 flood which had a peak discharge of 260,000 cfs (7400 cms). The findings of this study compare favorably with previous studies of the paleohydrology of the Salt River.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Paleohydrology -- Arizona -- Salt River.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Geosciences; Graduate College
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titlePaleoflood hydrology of the alluvial Salt River, Tempe, Arizonaen_US
dc.creatorFuller, Jonathan Edward.en_US
dc.contributor.authorFuller, Jonathan Edward.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 paleoflood history of the lower Salt River was documented using slackwater sedimentation techniques. Slackwater sediments are finegrained alluvial deposits which accumulate in zones of ineffective flow along the margins of flood channels. The tops of slackwater deposits can be used as a proxy for the water surface of the flood responsible for their deposition. Slackwater deposits used in this study also included post-abandonment fill in ancient Hohokam Indian irrigation canals. Paleodischarges were estimated using the HEC-II water-surface profile computer model. Cross-section information for the prehistoric Salt River channel was derived from a 1904 contour map of the Salt River Valley. This study is the first application of the slackwater technique to an alluvial river. Flood deposits dating from 1100 years before present to 1976 were analyzed. HEC-II modelling indicates that 27 floods during that time period exceeded the bankful discharge of 175,000 cfs (5000 cms). Two floods exceeded 420,000 cfs (11,900 cms). One of these large floods occurred around A.D. 890. The other occurred within the past 410 years. The largest flood of the historical era was the February, 1891 flood which had a peak discharge of 260,000 cfs (7400 cms). The findings of this study compare favorably with previous studies of the paleohydrology of the Salt River.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshPaleohydrology -- Arizona -- Salt River.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGeosciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.identifier.oclc219727408en_US
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