Regionalization of southeast Arizona precipitation distributions in a daily event-based watershed hydrologic model

Persistent Link:
http://hdl.handle.net/10150/191856
Title:
Regionalization of southeast Arizona precipitation distributions in a daily event-based watershed hydrologic model
Author:
Henkel, Arthur Frederick.
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:
A two-component daily event-based precipitation model previously analyzed only at isolated watersheds is "regionalized" by logically grouping points over Southeast Arizona into a small number of geographic clusters. Based on their grade of membership in successive similarity functions, fuzzy set theory is used to cluster 26 rainfall stations with 19 years of historical data into four groups representing relatively homogeneous probability distributions of rainfall interarrival time and amount per event. Geographic cluster subregions are identified and boundaries are drawn with such ancillary indicators as physiography, vegetation, and seasonal rainfall. Precipitation seasons are determined, theoretical probability distributions are hypothesized, and parameters are estimated by moments for each process in the model. An inverse distance algorithm is used to vary parameters within a cluster based on elevation, latitude, and longitude. An isolated validation of the regional technique is performed at an additional station with records.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Experimental watershed areas -- Arizona.; Rain and rainfall -- Arizona.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Renewable Natural Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Thames, John L.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleRegionalization of southeast Arizona precipitation distributions in a daily event-based watershed hydrologic modelen_US
dc.creatorHenkel, Arthur Frederick.en_US
dc.contributor.authorHenkel, Arthur Frederick.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.abstractA two-component daily event-based precipitation model previously analyzed only at isolated watersheds is "regionalized" by logically grouping points over Southeast Arizona into a small number of geographic clusters. Based on their grade of membership in successive similarity functions, fuzzy set theory is used to cluster 26 rainfall stations with 19 years of historical data into four groups representing relatively homogeneous probability distributions of rainfall interarrival time and amount per event. Geographic cluster subregions are identified and boundaries are drawn with such ancillary indicators as physiography, vegetation, and seasonal rainfall. Precipitation seasons are determined, theoretical probability distributions are hypothesized, and parameters are estimated by moments for each process in the model. An inverse distance algorithm is used to vary parameters within a cluster based on elevation, latitude, and longitude. An isolated validation of the regional technique is performed at an additional station with records.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshExperimental watershed areas -- Arizona.en_US
dc.subject.lcshRain and rainfall -- Arizona.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineRenewable Natural Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairThames, John L.en_US
dc.contributor.committeememberFogel, Martin M.en_US
dc.contributor.committeememberFfolliott, Peter F.en_US
dc.identifier.oclc213340316en_US
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