Stortini, M. and Morelli, S. and Marchesi, S. (2000) Modelling study of mesoscale cyclogenesis over Ross Sea, Antarctica, on February 18, 1988. Il nuovo cimento C, 23 C (2). pp. 147-164. ISSN 1826-9885
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Abstract
This paper examines the development of a summer event of mesoscale cyclogenesis off the coast of Victoria Land in the presence of katabatic winds, by means of numerical simulations. These refer to the period from 00 UTC 17 February to 00 UTC 19 February 1988 and were performed using the hydrostatic ETA (1993 version) limited area model with resolution 55 km x 55 km x 17 levels. The ETA model reproduces katabatic winds from Terra Nova Bay and a trough on the southwestern Ross Sea. A cyclonic vortex is simulated in the trough, even though it is weaker than the one present in the analyses initialized by the European Center for Medium Range Weather Forecast (Reading, UK). Idealized simulations with varied surface conditions were also performed. In particular, an ice-covered ocean acts to weaken the atmospheric phenomena, while a no-mountain simulation emphasizes the influence of the orography and the cold winds from the coast of Victoria Land on the mesocyclonic activity.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Meteorology ; Antarctica ; Winds and their effects |
| Subjects: | 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia |
| Depositing User: | Marina Spanti |
| Date Deposited: | 09 Mar 2020 14:10 |
| Last Modified: | 09 Mar 2020 14:10 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/13832 |
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