The diagnosis of a pre-blocking explosively-developing extratropical cyclone system

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The diagnosis of a pre-blocking explosively-developing extratropical cyclone system

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/2410

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Title: The diagnosis of a pre-blocking explosively-developing extratropical cyclone system
Author: Smith, Phillip J.; Lupo, Anthony R., 1966-; Uhl, Mary A.
Contributor: University of Missouri-Columbia. College of Agriculture, Food and Natural Resources (CAFNR). School of Natural Resources. Department of Soil, Environmental and Atmospheric Sciences.
Keywords: extratropical cyclone
Date: 1992-05
Publisher: Munksgaard
Citation: Monthly Weather Review Volume 44 Issue 3 , pp. 236-251
Abstract: This paper presents the diagnosis of an extratropical cyclone that developed explosively from 18 to 19 January 1979 over the North Atlantic Ocean. The diagnosis applies data obtained from the Goddard Laboratory for Atmospheres FGGE SOP-1 level III-b global analyses on a 4° latitude by 5° longitude grid to the extended height tendency and the Zwack-Okossi development equations. The cyclone developed initially in response to cyclonic vorticity advection downstream from an upper air trough, warm air advection in a strongly baroclinic region, and latent heat release in the cyclone domain. As development continued, thermal advection and latent heat release increased their role in forcing height falls in the cyclone domain, while the influence of vorticity advection decreased. Finally, development ceased when anticyclonic vorticity advection below 700 mb and adiabatic cooling in the ascending air combined to neutralize the influence of warm air advection and latent heat release.
URI: http://hdl.handle.net/10355/2410
ISSN: 0280-6495

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