A diagnosis of warm-core and cold-core extratropical cyclone development using the Zwack–Okossi equation
In this study, the development of a warm-core and cold-core extratropical cyclone over North Atlantic is examined. The geostrophic relative vorticity tendency used to diagnose the development is calculated utilizing the so-called extended form of the Zwack–Okossi development equation. In both cases,...
| Published in: | Atmospheric Science Letters |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Royal Meteorological Society and Wiley-Blackwell
2009
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| Subjects: | |
| Online Access: | https://hdl.handle.net/1956/6612 https://doi.org/10.1002/asl.244 |
| Summary: | In this study, the development of a warm-core and cold-core extratropical cyclone over North Atlantic is examined. The geostrophic relative vorticity tendency used to diagnose the development is calculated utilizing the so-called extended form of the Zwack–Okossi development equation. In both cases, the cyclonic vorticity advection acted to develop the system, but warm-air advection (diabatic heating) made the largest contribution to explosive development in the cold-core (warm-core) case. Further, a vertical cross section of the temperature advection in the warm-core case reveals that the largest values of this contributor are located far and ahead of the cyclone center. publishedVersion |
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