Articles | Volume 18, issue 19
Atmos. Chem. Phys., 18, 14393–14416, 2018
https://doi.org/10.5194/acp-18-14393-2018
Atmos. Chem. Phys., 18, 14393–14416, 2018
https://doi.org/10.5194/acp-18-14393-2018

Research article 09 Oct 2018

Research article | 09 Oct 2018

A numerical modelling investigation of the role of diabatic heating and cooling in the development of a mid-level vortex prior to tropical cyclogenesis – Part 1: The response to stratiform components of diabatic forcing

Melville E. Nicholls et al.

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Mid-level vortices are often observed to develop prior to the formation of a tropical cyclone. A numerical modelling simulation of tropical cyclogenesis is carried out which shows the development of a mid-level vortex, and an analysis indicates that sublimation at the base of the stratiform ice layer plays a major role in its formation. Understanding how mid-level vortices form and their role in tropical cyclogenesis may eventually lead to improved forecasts of these major weather events.
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