With the events of recent years - especially in the Atlantic tropical basin, the need for additional forecast tools to aid in tropical cyclone (TC) prediction and understanding is apparent. A suite of algorithms to be used for 3-D TC visualization are presented. Utilizing the assets of the Amira visualization software, we present methods which constitute a real-time visualization routine of TC genesis, mesoscale, and TC centered features derived from the The Florida State University (FSU) adaptation of the Pennsylvania State University (PSU) and National Center for Atmospheric Research (NCAR) Fifth Generation Mesoscale Model (MM5). However, the algorithms we develop are generic in that they can be applied to any gridded output from a forecast model. A method for the removal TC vorticity fields allowing an approximation of the environmental steering levels is also developed. The development and use of an adaptive wavenumber refinement filter (AWRF) has proven to outperform various alternative methods for TC vortex removal and thus the preservation of the environmental flow. Case study inter-comparisons are performed and illustrate that the AWRF provides the smallest mean track errors in future forecast position compared to those determined by the model's use of minimum sea level pressure (SLP) and vorticity maxima algorithm for TC center location. Discussions are also provided suggesting areas of needed improvement within the algorithm as illustrated by the case studies presented. / A Thesis submitted to the Department of Meteorology in partial fulfillment of the
requirements for the degree of Masters of Science. / Degree Awarded: Fall Semester, 2006. / Date of Defense: September 21, 2006. / Vortex Removal, Tropical Cyclone Visualization, Amira, Environmental Steering Flow / Includes bibliographical references. / Xiaolei Zou, Professor Directing Thesis; Gordon Erlebacher, Outside Committee Member; Mark A. Bourassa, Committee Member; Gousheng Liu, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_169154 |
| Contributors | Winterbottom, Henry R. (authoraut), Zou, Xiaolei (professor directing thesis), Erlebacher, Gordon (outside committee member), Bourassa, Mark A. (committee member), Liu, Gousheng (committee member), Department of Earth, Ocean and Atmospheric Sciences (degree granting department), Florida State University (degree granting institution) |
| Publisher | Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text |
| Format | 1 online resource, computer, application/pdf |
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