Persistent Link:
http://hdl.handle.net/10150/620102
Title:
WATER QUALITY IN THE LOWER COLORADO RIVER AND THE EFFECT OF RESERVOIRS
Author:
Slawson, G. C., Jr.
Affiliation:
Department of Hydrology & Water Resources, The University of Arizona
Publisher:
Department of Hydrology and Water Resources, University of Arizona (Tucson, AZ)
Issue Date:
1972-07
Rights:
Copyright © Arizona Board of Regents
Collection Information:
This title from the Hydrology & Water Resources Technical Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu.
Abstract:
Comparison of the power spectra of TDS time series from different locations on the Lower Colorado River is useful in showing changes in salinity and for indicating physical factors influencing salinity. Similarities between the power spectra of the Lee Ferry and Grand Canyon tine series indicated that lateral inputs and evaporation are not greatly influencing the salinity cycle. The salinity change within this reach was approximated by a constant concentration change of 66.6 ppm. A similar model form was used for the Hoover Dam to Parker Dam reach. Dissimilarities between power spectra indicated that additional inputs are significant and must be accounted for in any model of such reaches. The model for Lake Mead required compensation for evaporation and for the inputs of the Virgin River and Las Vegas Wash. The modeled salinity increase between Parker Dam and Yuma contained a trend factor to allow for the effect of irrigation return flows and seepage. The crosscovariance function was used to approximate the time lag between data stations. Time series statistics, including coherence, response function spectra, and overall unit response, were used and are of utility in estimating salinity in a river system.
Keywords:
Water quality -- Colorado River (Colo.-Mexico); Saline waters -- Colorado River (Colo.-Mexico); Reservoirs -- Colorado River (Colo.-Mexico); Time-series analysis.
Series/Report no.:
Technical Reports on Hydrology and Water Resources, No. 12
Sponsors:
The work upon which this report is based was supported by funds provided by the United States Bureau of Reclamation, Region 3, and by an Allotment Grant from the Water Resources Research Center of the University of Arizona.

Full metadata record

DC FieldValue Language
dc.contributor.authorSlawson, G. C., Jr.en
dc.date.accessioned2016-09-13T22:22:33Z-
dc.date.available2016-09-13T22:22:33Z-
dc.date.issued1972-07-
dc.identifier.urihttp://hdl.handle.net/10150/620102-
dc.description.abstractComparison of the power spectra of TDS time series from different locations on the Lower Colorado River is useful in showing changes in salinity and for indicating physical factors influencing salinity. Similarities between the power spectra of the Lee Ferry and Grand Canyon tine series indicated that lateral inputs and evaporation are not greatly influencing the salinity cycle. The salinity change within this reach was approximated by a constant concentration change of 66.6 ppm. A similar model form was used for the Hoover Dam to Parker Dam reach. Dissimilarities between power spectra indicated that additional inputs are significant and must be accounted for in any model of such reaches. The model for Lake Mead required compensation for evaporation and for the inputs of the Virgin River and Las Vegas Wash. The modeled salinity increase between Parker Dam and Yuma contained a trend factor to allow for the effect of irrigation return flows and seepage. The crosscovariance function was used to approximate the time lag between data stations. Time series statistics, including coherence, response function spectra, and overall unit response, were used and are of utility in estimating salinity in a river system.en
dc.description.sponsorshipThe work upon which this report is based was supported by funds provided by the United States Bureau of Reclamation, Region 3, and by an Allotment Grant from the Water Resources Research Center of the University of Arizona.en
dc.language.isoen_USen
dc.publisherDepartment of Hydrology and Water Resources, University of Arizona (Tucson, AZ)en
dc.relation.ispartofseriesTechnical Reports on Hydrology and Water Resources, No. 12en
dc.rightsCopyright © Arizona Board of Regentsen
dc.sourceProvided by the Department of Hydrology and Water Resources.en
dc.subjectWater quality -- Colorado River (Colo.-Mexico)en
dc.subjectSaline waters -- Colorado River (Colo.-Mexico)en
dc.subjectReservoirs -- Colorado River (Colo.-Mexico)en
dc.subjectTime-series analysis.en
dc.titleWATER QUALITY IN THE LOWER COLORADO RIVER AND THE EFFECT OF RESERVOIRSen_US
dc.typetexten
dc.typeTechnical Reporten
dc.contributor.departmentDepartment of Hydrology & Water Resources, The University of Arizonaen
dc.description.collectioninformationThis title from the Hydrology & Water Resources Technical Reports collection is made available by the Department of Hydrology & Atmospheric Sciences and the University Libraries, University of Arizona. If you have questions about titles in this collection, please contact repository@u.library.arizona.edu.en
All Items in UA Campus Repository are protected by copyright, with all rights reserved, unless otherwise indicated.