The diagnosis of a preblocking explosively-developing extratropical cyclone system
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 deg latitude by 5 deg longi...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19920062150 2023-05-15T17:32:28+02:00 The diagnosis of a preblocking explosively-developing extratropical cyclone system Uhl, Mary A. Smith, Phillip J. Lupo, Anthony R. Zwack, Peter Unclassified, Unlimited, Publicly available May 1, 1992 http://ntrs.nasa.gov/search.jsp?R=19920062150 unknown http://ntrs.nasa.gov/search.jsp?R=19920062150 Accession ID: 92A44774 Copyright Other Sources 47 Tellus, Series A - Dynamic Meteorology and Oceanography; 44A; 3, Ma 1992 ftnasantrs 2012-02-15T19:36:07Z 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 deg latitude by 5 deg 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 through, 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. Other/Unknown Material North Atlantic NASA Technical Reports Server (NTRS) |
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47 Uhl, Mary A. Smith, Phillip J. Lupo, Anthony R. Zwack, Peter The diagnosis of a preblocking explosively-developing extratropical cyclone system |
topic_facet |
47 |
description |
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 deg latitude by 5 deg 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 through, 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. |
format |
Other/Unknown Material |
author |
Uhl, Mary A. Smith, Phillip J. Lupo, Anthony R. Zwack, Peter |
author_facet |
Uhl, Mary A. Smith, Phillip J. Lupo, Anthony R. Zwack, Peter |
author_sort |
Uhl, Mary A. |
title |
The diagnosis of a preblocking explosively-developing extratropical cyclone system |
title_short |
The diagnosis of a preblocking explosively-developing extratropical cyclone system |
title_full |
The diagnosis of a preblocking explosively-developing extratropical cyclone system |
title_fullStr |
The diagnosis of a preblocking explosively-developing extratropical cyclone system |
title_full_unstemmed |
The diagnosis of a preblocking explosively-developing extratropical cyclone system |
title_sort |
diagnosis of a preblocking explosively-developing extratropical cyclone system |
publishDate |
1992 |
url |
http://ntrs.nasa.gov/search.jsp?R=19920062150 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19920062150 Accession ID: 92A44774 |
op_rights |
Copyright |
_version_ |
1766130627946479616 |