Articles | Volume 18, issue 19
https://doi.org/10.5194/acp-18-14393-2018
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, Roger A. Pielke Sr., Donavan Wheeler, Gustavo Carrio, and Warren P. Smith

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Cited articles

Adams-Selin, R. D. and Johnson, R. H.: Examination of gravity waves associated with the 13 March 2003 bow echo, Mon. Weather Rev., 141, 3735–3756, 2013. 
Bister, M. and Emanuel, K. A.: The genesis of hurricane Guillermo: TEXMEX analyses and a modeling study, Mon. Weather Rev., 125, 2662–2682, 1997. 
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Chen, S. S. and Frank, W. M.: A numerical study of the genesis of extratropical convective mesovortices. Part I: Evolution and dynamics, J. Atmos. Sci., 50, 2401–2426, 1993. 
Conzemius, R. J. and Montgomery, M. T.: Clarification on the generation of absolute and potential vorticity in mesoscale convective vortices, Atmos. Chem. Phys., 9, 7591–7605, https://doi.org/10.5194/acp-9-7591-2009, 2009. 
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Short summary
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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