OBSERVATIONAL STUDY OF THE PHYSICAL PROCESSES RESPONSIBLE FOR TROPICAL CYCLONE MOTION.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Detail(s)

Original languageEnglish
Pages (from-to)1036-1048
Journal / PublicationJournal of the Atmospheric Sciences
Volume41
Issue number6
Publication statusPublished - 1 Jan 1984
Externally publishedYes

Abstract

Presents an observational study of the physics of tropical cyclone motion. Analyses of the vorticity budget using both aircraft and rawinsonde composite data were performed. As expected, the results show a definite link between the local change in relative vorticity and tropical cyclone movement. The main contributor to this local change, at least in the middle troposphere, is the horizontal advection of absolute vorticity with the divergence term usually playing a secondary but not necessarily negligible role. The vertical advection and tilting terms are generally much smaller. The contribution of the divergence term as an extra component in determining the movement of tropical cyclone is discussed.