Clausius-Clapeyron scaling of peak CAPE in continental convective storm environments

Clausius-Clapeyron scaling of peak CAPE in continental convective storm environments AbstractA thermodynamic constraint on convective available potential energy (CAPE) in continental environments is established using an idealized, one-dimensional model. This theoretical model simplifies the synoptic-scale preconditioning framework for continental severe convection by considering a dry adiabatic column that comes into contact with a moist land surface. A system of equations is derived to describe the evolution of the ensuing surface boundary layer. From these, the maximum value of transient CAPE in the column can be found for any particular combination of surface temperature and moisture. It is demonstrated that, for a given range of surface temperatures, the value of peak CAPE scales with the Clausius-Clapeyron relation. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the Atmospheric Sciences American Meteorological Society

Clausius-Clapeyron scaling of peak CAPE in continental convective storm environments

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0469
D.O.I.
10.1175/JAS-D-16-0352.1
Publisher site
See Article on Publisher Site

Abstract

AbstractA thermodynamic constraint on convective available potential energy (CAPE) in continental environments is established using an idealized, one-dimensional model. This theoretical model simplifies the synoptic-scale preconditioning framework for continental severe convection by considering a dry adiabatic column that comes into contact with a moist land surface. A system of equations is derived to describe the evolution of the ensuing surface boundary layer. From these, the maximum value of transient CAPE in the column can be found for any particular combination of surface temperature and moisture. It is demonstrated that, for a given range of surface temperatures, the value of peak CAPE scales with the Clausius-Clapeyron relation.

Journal

Journal of the Atmospheric SciencesAmerican Meteorological Society

Published: Jul 10, 2017

References

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