dc.contributor.advisor | Micheas, Athanasios Christos | eng |
dc.contributor.author | DeWees, Todd A., 1979- | eng |
dc.coverage.spatial | Missouri -- Kansas City | eng |
dc.date.issued | 2009 | eng |
dc.date.submitted | 2009 Fall | eng |
dc.description | The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. | eng |
dc.description | Title from PDF of title page (University of Missouri--Columbia, viewed on January 28, 2011). | eng |
dc.description | Thesis advisor: Dr. Athanasios C. Micheas. | eng |
dc.description | Vita. | eng |
dc.description | Ph. D. University of Missouri--Columbia 2009. | eng |
dc.description.abstract | [ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] We study a hierarchical Bayesian framework for finite mixtures of distributions. We first consider a Dirichlet mixture of normal components and utilize it to model spatial fields that arise as pixelated images of intensities. We demonstrate our models using results from simulated data as well as using "real-world" weather radar reflectivity fields. We propose model adequacy and verification tests to further illustrate the effectiveness of the model. We then consider and define spatio-temporal processes using a hierarchical Bayesian mixture model to help us predict the evolution of these processes based on several radar reflectivity fields observed over a short-term time period. We illustrate the methodology with simulated data and apply verification methods to demonstrate the ability of the methods to model such data. We implement these models in nowcasting the evolution of storm systems observed around the area of Kansas City, Missouri, on June 7, 2007. | eng |
dc.description.bibref | Includes bibliographical references. | eng |
dc.identifier.oclc | 698776427 | eng |
dc.identifier.uri | https://hdl.handle.net/10355/9888 | |
dc.identifier.uri | https://doi.org/10.32469/10355/9888 | eng |
dc.language | English | eng |
dc.publisher | University of Missouri--Columbia | eng |
dc.relation.ispartofcommunity | University of Missouri--Columbia. Graduate School. Theses and Dissertations | eng |
dc.rights | Access is limited to the campus of the University of Missouri--Columbia. | eng |
dc.subject.lcsh | Bayesian statistical decision theory | eng |
dc.subject.lcsh | Dirichlet principle | eng |
dc.subject.lcsh | Radar meteorology | eng |
dc.subject.lcsh | Reflectance | eng |
dc.subject.lcsh | Nowcasting (Meteorology) | eng |
dc.title | A hierarchical Bayesian mixture approach for modeling reflectivity fields with application to Nowcasting | eng |
dc.type | Thesis | eng |
thesis.degree.discipline | Statistics (MU) | eng |
thesis.degree.grantor | University of Missouri--Columbia | eng |
thesis.degree.level | Doctoral | eng |
thesis.degree.name | Ph. D. | eng |