Estimation and analysis of the uncertainty in streamflow and change in reservoir-content data at selected streamflow-gaging stations in the lower Colorado River network, 1995-99

Persistent Link:
http://hdl.handle.net/10150/191364
Title:
Estimation and analysis of the uncertainty in streamflow and change in reservoir-content data at selected streamflow-gaging stations in the lower Colorado River network, 1995-99
Author:
Anning, David William.
Issue Date:
2002
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:
New methods were used to estimate the standard error of the annual discharge and the annual change in reservoir content at stations in the lower Colorado River streamflowgaging network. The Moss and Gilroy (1980) method estimates the standard error of the annual discharge by using information contained in the periodic discharge measurements made at a streamflow-gaging station and was modified to be more site-specific and reflective of actual conditions during the year of interest. The two main improvements are using only discharge measurements pertinent to the year of interest rather than all discharge measurements, and using a semivariogram to estimate three discharge-uncertainty parameters: measurement variance, process variance, and the one-day serial correlation coefficient of the discharge-rating residuals. The new method for estimating the standard error of the annual change in reservoir content uses the standard error of the two reservoir stage readings and the corresponding reservoir surface areas for the readings.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Streamflow -- Colorado River (Colo.-Mexico) -- Mathematical models.; Stream measurements -- Colorado River (Colo.-Mexico); Stream-gaging stations -- Colorado River (Colo.-Mexico)
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Davis, Donald R.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleEstimation and analysis of the uncertainty in streamflow and change in reservoir-content data at selected streamflow-gaging stations in the lower Colorado River network, 1995-99en_US
dc.creatorAnning, David William.en_US
dc.contributor.authorAnning, David William.en_US
dc.date.issued2002en_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.abstractNew methods were used to estimate the standard error of the annual discharge and the annual change in reservoir content at stations in the lower Colorado River streamflowgaging network. The Moss and Gilroy (1980) method estimates the standard error of the annual discharge by using information contained in the periodic discharge measurements made at a streamflow-gaging station and was modified to be more site-specific and reflective of actual conditions during the year of interest. The two main improvements are using only discharge measurements pertinent to the year of interest rather than all discharge measurements, and using a semivariogram to estimate three discharge-uncertainty parameters: measurement variance, process variance, and the one-day serial correlation coefficient of the discharge-rating residuals. The new method for estimating the standard error of the annual change in reservoir content uses the standard error of the two reservoir stage readings and the corresponding reservoir surface areas for the readings.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshStreamflow -- Colorado River (Colo.-Mexico) -- Mathematical models.en_US
dc.subject.lcshStream measurements -- Colorado River (Colo.-Mexico)en_US
dc.subject.lcshStream-gaging stations -- Colorado River (Colo.-Mexico)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.chairDavis, Donald R.en_US
dc.identifier.oclc227011053en_US
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