A normalization of the Available Potential Energy for the Convection
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Published:
Jul 1, 2017
Keywords:
Available potential energy, Convection, CAPE normalized
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Abstract
The CAPE – CIN set is a quite useful variable to know the available potential energy for convection at a given place and time. However, as its determination is based on an area between the curves of the ascending particle temperature and the environmental temperature, there is always a risk of obtaining equal areas for different vertical distributions of both curves. One solution is the normalization of the set value, taking into account the mean height of the considered area and the depth of the so called convective layer, without having to modify its energy units. Therefore the use of HCAPE – HCIN (normalized set) is proposed for the comparison, for instance, with the corresponding energy of descendent streams.
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How to Cite
CalvoM. C. (2017). A normalization of the Available Potential Energy for the Convection. Revista Cubana De Meteorología, 23(2), 226-231. Retrieved from http://rcm.insmet.cu/index.php/rcm/article/view/242
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Communications
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References
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Colby, F. D., Jr., 1984: Convective inhibition as a predictor of convection during AVESESAME II. Mon. Wea. Rev., 112, 2239 – 2252.
Doswell III, C. and M. Schultz, 2006: On the Use of Indices and Parameters in Forecasting Severe Local Storms. Electronic J. Severe Storms Meteor., 1 (3), 1– 22.
Fawbush, E. J. and R. C. Miller, 1953: A method for forecasting hailstone size at the earth’s surface. Bull. Amer. Meteor. Soc., 34, 235 – 244.
Foster, D. S. and F. Bates, 1956: A hail size forecasting technique. Bull. Amer. Meteorol. Soc., 37, 135 – 141.
Haurwitz, B., 1941: Dynamic Meteorology. New York, McGraw-Hill Book Co., 365 pp.
Lorenz, E. N., 1955: Available Potential Energy and the Maintenance of the General Circulation. Tellus, 157 – 167.
McCaul, E. W. and M. L. Weisman, 1996: The dependence of simulated storm structure on variations in the shape of environment buoyancy and shear profiles. Preprints, 18th Conf. on Severe Local Storms, San Francisco, CA, Amer. Meteor. Soc., 718 – 722.
Moncrieff, M. W. and J. S.A. Green, 1972: The propagation of steady convective overturning in shear. Quart. J. Meteor. Soc., 98, 336 – 352.
Moncrieff, M. W. and Miller, 1976: The dynamics and simulation of tropical cumulonimbus and squall lines. Quart. J. Roy. Meteor. Soc., 102, 373 – 394.
Pearce, R. P., 1978: On the concept of available potential energy. Quart. J. R. Met. Soc., 104, 737 – 755.
Wicker L. J. and L. Cantrell, 1996: The role of vertical buoyancy distributions in miniature supercells. Preprints, 18th Conf. on Severe Local Storms, San Francisco, CA, Amer. Meteor. Soc., 225 – 229.