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Mesoscale cyclogenesis over the western North Pacific Ocean during TPARC

Davis, C.A.; Jones, S.C.; Anwender, D.; Badey, J.; Scheck, L.

Three cases of mesoscale marine cyclogenesis over the subtropics of the Western Pacific Ocean are investigated. Each case occurred during the THORPEX Pacific Asia Regional Campaign and Tropical Cyclone Structure (TCS-08) field phases in 2008. Each cyclone developed from remnants of disturbances that earlier showed potential for tropical cyclogenesis within the tropics. Two of the cyclones produced gale-force surface winds, and one, designated as a tropical cyclone, resulted in a significant coastal storm over eastern Japan. Development was initiated by a burst of organized mesoscale convection that consolidated and intensified the surface cyclonic circulation over a period of 12-24 h. Upper-tropospheric potential vorticity anomalies modulated the vertical wind shear that, in turn, influenced the periods of cyclone intensification and weakening. Weak baroclinicity associated with vertical shear was also deemed important in organizing mesoscale ascent and the convection outbreaks. The remnant tropical disturbances contributed exceptional water vapour content to higher latitudes that led to strong diabatic heating, and the tropical remnants contributed vorticity that was the seed of the development in the subtropics. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000039221
Veröffentlicht am 27.04.2018
DOI: 10.3402/tellusa.v65i0.18621
Zitationen: 1
Web of Science
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Physik (PHYSIK)
Institut für Meteorologie und Klimaforschung - Forschungsbereich Troposphäre (IMK-TRO)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2013
Sprache Englisch
Identifikator ISSN: 0280-6495, 1600-0870
KITopen-ID: 1000039221
HGF-Programm 12.01.02 (POF II, LK 01)
Prozessuntersuchungen und Vorhersage
Erschienen in Tellus / A
Band 65
Seiten 18621/1-22
Schlagwörter tropical cyclone, T-PARC, mesoscale cyclone, vertical shear, moist convection
Nachgewiesen in Scopus
Web of Science
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