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dc.contributor.authorLogan, Benen_US
dc.date.accessioned2014-03-14T20:35:39Z
dc.date.available2014-03-14T20:35:39Z
dc.date.issued2006-04-25en_US
dc.identifier.otheretd-05082006-113632en_US
dc.identifier.urihttp://hdl.handle.net/10919/32371
dc.description.abstractTwentieth Century climatology was dominated by two great figures: Wladamir Köppen and C. Warren Thornthwaite. The first carefully developed climatic parameters to match the larger world vegetation communities. The second developed complex formulas of "Moisture Factors" that provided efficient understanding of how evapotranspiration influences plant growth and health, both for native and non-native communities. In the latter half of the Twentieth Century, the Sunset Magazine Corporation develop a purely empirical set of Garden Zones, first for California, then for the thirteen states of the West, now for the entire nation in the National Garden Maps. The Sunset Garden Zones are well recognized and respected in Western States for illustrating the several factors of climate that distinguish zones. But the Sunset Garden Zones have never before been digitized and examined statistically for validation of their demarcations. This thesis examines the digitized zones with reference to PRISM climate data. Variable coverages resembling those described by Sunset are extracted from the PRISM data. These variable coverages are collected for two buffered areas, one in northern California and one in southern California. The coverages are exported from ArcGIS 9.1 to SAS® where they are processed first through a Principal Component Analysis, and then the first five principal components are entered into a Ward's Hierarchical Cluster Analysis. The resulting clusters were translated back into ArcGIS as a raster coverage, where the clusters were climatic regions. This process is quite amenable for further examination of other regions of Californiaen_US
dc.publisherVirginia Techen_US
dc.relation.haspartblogan_thesis_6-29-07_Acrobat5.pdfen_US
dc.rightsI hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to Virginia Tech or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report.en_US
dc.subjectSunset Garden Zonesen_US
dc.subjectClimateen_US
dc.subjectPrincipal Component Analysisen_US
dc.subjectCaliforniaen_US
dc.subjectCluster Analysisen_US
dc.titleA Statistical Examination of the Climatic Human Expert System, The Sunset Garden Zones for Californiaen_US
dc.typeThesisen_US
dc.contributor.departmentGeographyen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
dc.contributor.committeechairCampbell, James B. Jr.en_US
dc.contributor.committeememberBoyer, John D.en_US
dc.contributor.committeememberKennedy, Lisa M.en_US
dc.contributor.committeememberBuikema, Arthur L. Jr.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05082006-113632/en_US
dc.date.sdate2006-05-08en_US
dc.date.rdate2008-01-11
dc.date.adate2008-01-11en_US


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