Parameterization and optimization of the season quadrant associated with the API-type model : Middle Atlantic River forecast center version
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azu_td_hy_e9791_1990_626_sip1_w.pdf
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azu_td_hy_e9791_1990_626_sip1_w.pdf
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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 physically based description of the standard API-type rainfall-runoff model is presented. Enhancements developed by the National Weather Service Middle Atlantic River Forecast Center (NWS MARFC) are also discussed. Alterations are made to some of these enhancements to provide a more realistic definition of the rainfall-runoff process. Equations are introduced to replace the interpolating schemes which describe the 19 regional season quadrants in the current version of the MARFC API model. A direct-search optimization routine known as pattern search is used to adjust the parameters in these equations. It is shown that the performance of the MARFC API model can be enhanced through the use of this routine, provided that the initial parameter values are relatively close to the final optimum.Type
Thesis-Reproduction (electronic)text
Degree Name
M.S.Degree Level
mastersDegree Program
Hydrology and Water ResourcesGraduate College