An Evaluation of Potential Evapotranspiration Estimates for Selected Sites within Arizona

Persistent Link:
http://hdl.handle.net/10150/191848
Title:
An Evaluation of Potential Evapotranspiration Estimates for Selected Sites within Arizona
Author:
Kagele, William Charles.
Issue Date:
1985
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 purpose of this investigation was to develop empirical relationships between pan evaporation and meteorological factors, under varied climatic conditions. Linear regression equations relating potential evapotranspiration and pan evaporation were derived for five stations in Arizona from January to December, 1983. Five climatological models (temperature, temperature-radiation, net radiation, solar radiation, and Penman combination) were applied to data collected from Mesa, Tucson (Campus Agricultural Center and UA 1), Oracle Agricultural Center, and Yuma. At each site high correlations were found between predicted values and open pan evaporation when data were grouped into monthly and weekly periods, although coefficients of variation were markedly different. Of the five methods, the net radiation equation, which required local calibration showed the poorest agreement between the empirical and measured values. Improvement in comparisons between empirical and measured values was observed with the temperature, radiation-temperature, and solar radiation methods. The Penman combination equation corresponded most closely to measured values.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Evaporation -- Arizona.; Evapotranspiration -- Arizona.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Soils, Water and Engineering; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Matthias, A.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleAn Evaluation of Potential Evapotranspiration Estimates for Selected Sites within Arizonaen_US
dc.creatorKagele, William Charles.en_US
dc.contributor.authorKagele, William Charles.en_US
dc.date.issued1985en_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 purpose of this investigation was to develop empirical relationships between pan evaporation and meteorological factors, under varied climatic conditions. Linear regression equations relating potential evapotranspiration and pan evaporation were derived for five stations in Arizona from January to December, 1983. Five climatological models (temperature, temperature-radiation, net radiation, solar radiation, and Penman combination) were applied to data collected from Mesa, Tucson (Campus Agricultural Center and UA 1), Oracle Agricultural Center, and Yuma. At each site high correlations were found between predicted values and open pan evaporation when data were grouped into monthly and weekly periods, although coefficients of variation were markedly different. Of the five methods, the net radiation equation, which required local calibration showed the poorest agreement between the empirical and measured values. Improvement in comparisons between empirical and measured values was observed with the temperature, radiation-temperature, and solar radiation methods. The Penman combination equation corresponded most closely to measured values.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshEvaporation -- Arizona.en_US
dc.subject.lcshEvapotranspiration -- Arizona.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineSoils, Water and Engineeringen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairMatthias, A.en_US
dc.contributor.committeememberYitayew, M.en_US
dc.contributor.committeememberHendricks, D.en_US
dc.identifier.oclc228026409en_US
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