A numerical study on the effects of environmental flow on tropical storm genesis.

Abstract

The role of the environmental wind in tropical storm genesis is studied using a numerical simulation model. The model used is an 11-level, primitive equation model covering a channel domain of 25o span with open lateral boundaries at 5.5 and 30.5oN. According to the model results, the storm genesis potential is definitely biased toward easterly vertical shear (easterlies increasing with height) of the environmental flow rather than westerly shear when the mean surface flow is easterly. -from Authors