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Author (up) Hite, M. M.
Title Vorticity-Based Detection of Tropical Cyclogenesis Type $loc['typeManuscript']
Year 2006 Publication Abbreviated Journal
Volume Issue Pages
Keywords Quikscat, Seawinds, Tropical Disturbance, Tropical Cyclogenesis, Vorticity
Abstract Ocean wind vectors from the SeaWinds scatterometer on QuikSCAT and GOES imagery are used to develop an objective technique that can detect and monitor tropical disturbances associated with the early stages of tropical cyclogenesis in the Atlantic basin. The technique is based on identification of surface vorticity and wind speed signatures that exceed certain threshold magnitudes, with vorticity averaged over an appropriate spatial scale. The threshold values applied herein are determined from the precursors of 15 tropical cyclones during the 1999-2004 Atlantic hurricane seasons using research-quality QuikSCAT data. Tropical disturbances are found for these cases within a range of 19 hours to 101 hours before classification as tropical cyclones by the National Hurricane Center (NHC). The 15 cases are further subdivided based upon their origination source (i.e., easterly wave, upper-level cut-off low, stagnant frontal zone, etc). Primary focus centers on the cases associated with tropical waves, since these waves account for approximately 63% of all Atlantic tropical cyclones. The detection technique illustrates the ability to track these tropical disturbances from near the coast of Africa. Analysis of the pre-tropical cyclone (TC) tracks for these cases depict stages, related to wind speed and precipitation, in the evolution of an easterly wave to tropical cyclone.
Address Department of Meteorology
Corporate Author Thesis $loc['Master's thesis']
Publisher Florida State University Place of Publication Tallahassee, FL Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @ Serial 616
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Author (up) Hite, M. M.; Bourassa, M. A.; O'Brien, J. J.
Title Vorticity-Based Detection Of Tropical Cyclones Type $loc['typeConference Article']
Year 2006 Publication 14th Conference on Interactions of the Sea and Atmosphere, American Meteorological Society, Atlanta, Ga, USA Abbreviated Journal
Volume Issue Pages cdrom
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Funding NASA, OSU, SEAWINDS Approved $loc['no']
Call Number COAPS @ mfield @ Serial 922
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Author (up) Hite, M.; Bourassa, M. A.; O'Brien, J. J.
Title Objective detection of Atlantic tropical disturbances Type $loc['typeConference Article']
Year 2006 Publication 14th Conference on Interactions of the Sea and Atmosphere, AMS, Monterey, CA, USA Abbreviated Journal
Volume Issue Pages cdrom
Keywords
Abstract
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN ISBN Medium
Area Expedition Conference
Funding NASA, OVWST, OSU, TCSP Approved $loc['no']
Call Number COAPS @ mfield @ Serial 932
Permanent link to this record

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