The Cesium-137 Method for Measuring Erosion: Case Study in a Close Arid Basin.

Persistent Link:
http://hdl.handle.net/10150/192123
Title:
The Cesium-137 Method for Measuring Erosion: Case Study in a Close Arid Basin.
Author:
Hartley, Daniel Robert.
Issue Date:
2004
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:
Fallout ¹³⁷Cs was used to study erosion in a 1-ha closed arid basin created by a railroad embankment in the Mojave Desert. A literature review discovered a web site that gives the start date of Nevada Test Site fallout for any county in the U.S. Calculations showed that the peak ¹³⁷Cs concentration in sediment deposits occurred in 1966 when accumulations in soil were greatest, not in 1963 as is commonly assumed. ¹³⁷Cs calculations using some unverified assumptions yielded soil erosion of 10,000 kg over 46 years, compared to an estimated volume of 15,000 kg of reservoir sediments. The highest erosion rates occurred in the disturbed borrow pit and on steep channel side slopes, while desert pavement areas had deposition. Two main difficulties with ¹³⁷Cs erosion estimates are relating point measurements to larger areas and converting ¹³⁷Cs loss to soil loss.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Cesium.; Arid regions.; Hydrology -- Arid regions -- Congresses.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Baker, Victor

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleThe Cesium-137 Method for Measuring Erosion: Case Study in a Close Arid Basin.en_US
dc.creatorHartley, Daniel Robert.en_US
dc.contributor.authorHartley, Daniel Robert.en_US
dc.date.issued2004en_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.abstractFallout ¹³⁷Cs was used to study erosion in a 1-ha closed arid basin created by a railroad embankment in the Mojave Desert. A literature review discovered a web site that gives the start date of Nevada Test Site fallout for any county in the U.S. Calculations showed that the peak ¹³⁷Cs concentration in sediment deposits occurred in 1966 when accumulations in soil were greatest, not in 1963 as is commonly assumed. ¹³⁷Cs calculations using some unverified assumptions yielded soil erosion of 10,000 kg over 46 years, compared to an estimated volume of 15,000 kg of reservoir sediments. The highest erosion rates occurred in the disturbed borrow pit and on steep channel side slopes, while desert pavement areas had deposition. Two main difficulties with ¹³⁷Cs erosion estimates are relating point measurements to larger areas and converting ¹³⁷Cs loss to soil loss.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshCesium.en_US
dc.subject.lcshArid regions.en_US
dc.subject.lcshHydrology -- Arid regions -- Congresses.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.chairBaker, Victoren_US
dc.identifier.oclc220941451en_US
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