The potential and actual evapotranspiration of water-rich ecosystems in arid regions

Persistent Link:
http://hdl.handle.net/10150/291843
Title:
The potential and actual evapotranspiration of water-rich ecosystems in arid regions
Author:
Honaman, Andrew M., 1958-
Issue Date:
1998
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 well-known and widely accepted Penman combination equation was applied to climatic data collected in a desert environment to predict actual evapotranspiration if the desert region were developed into irrigated agriculture. The Penman evaporation estimates from desert climate data were compared to Bowen ratio ET measurements collected on irrigated alfalfa fields in the general vicinity. Six variations of the wind function in Penman's equation were tested. From these six the best fit-model was determined. surprisingly, Penman's original equation provided the best fit (in mean hourly units W m⁻²) as PLE₁ = 0.953LE + 43. The s.e. was 51 W⁻², r² = 0.953, and n = 298 hourly points. A calibrated wind function was developed and named 'Sonoran'. The Sonoran wind function PLE₆ = 0.954LE + 24, s.e. = 48.8 r² = 0.956 provided virtually imperceptible improvements over Penman's original wind function.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Environmental Sciences.; Agriculture, General.; Engineering, Agricultural.; Physics, Atmospheric Science.; Environmental Sciences.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Renewable Natural Resources
Degree Grantor:
University of Arizona
Advisor:
Gay, Lloyd W.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe potential and actual evapotranspiration of water-rich ecosystems in arid regionsen_US
dc.creatorHonaman, Andrew M., 1958-en_US
dc.contributor.authorHonaman, Andrew M., 1958-en_US
dc.date.issued1998en_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 well-known and widely accepted Penman combination equation was applied to climatic data collected in a desert environment to predict actual evapotranspiration if the desert region were developed into irrigated agriculture. The Penman evaporation estimates from desert climate data were compared to Bowen ratio ET measurements collected on irrigated alfalfa fields in the general vicinity. Six variations of the wind function in Penman's equation were tested. From these six the best fit-model was determined. surprisingly, Penman's original equation provided the best fit (in mean hourly units W m⁻²) as PLE₁ = 0.953LE + 43. The s.e. was 51 W⁻², r² = 0.953, and n = 298 hourly points. A calibrated wind function was developed and named 'Sonoran'. The Sonoran wind function PLE₆ = 0.954LE + 24, s.e. = 48.8 r² = 0.956 provided virtually imperceptible improvements over Penman's original wind function.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEnvironmental Sciences.en_US
dc.subjectAgriculture, General.en_US
dc.subjectEngineering, Agricultural.en_US
dc.subjectPhysics, Atmospheric Science.en_US
dc.subjectEnvironmental Sciences.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorGay, Lloyd W.en_US
dc.identifier.proquest1393719en_US
dc.identifier.bibrecord.b39471809en_US
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