On the interaction of tropical cyclones with each other and with different atmospheric structures |
| |
Authors: | A E Pokhil E S Glebova |
| |
Institution: | (1) TLGVRC, Jackson State University, Jackson, MS 39217, USA;(2) NCEP/EMC, 5200 Auth Road, Camp Springs, MD 20746, USA; |
| |
Abstract: | The paper deals with the investigation of the interaction of tropical cyclones (TC) of the Atlantic and Pacific oceans with
each other and with the polar front on the basis of computations using the mesoscale numerical ETA-model. The process of the
interaction is demonstrated of TC Man-yi with the polar front accompanied by the distortion of vorticity circle and its consolidation
with the vorticity zone of the polar front as well as by the formation of a convective “tail” interacting with the frontal
zone. It is shown how one can define the beginning of this interaction, the moment of the potential trajectory turn, and the
interaction process between a pair of tropical cyclones using the sea level pressure and vorticity fields. The transformation
of the kinetic energy field at the isobaric surface of 850 hPa can serve as an indicator of the energy transfer between the
cyclones. The influence of islands on the hurricane Gustav resulting in certain changes in the structure of vorticity, wind
speed and kinetic energy fields is considered. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|