Subsynoptic-Scale Kinetic Energy Balance in the Storm Area

Ernest C. Kung Department of Atmospheric Science, University of Missouri-Columbia, Mo. 65201

Search for other papers by Ernest C. Kung in
Current site
Google Scholar
PubMed
Close
and
Ted L. Tsui Department of Atmospheric Science, University of Missouri-Columbia, Mo. 65201

Search for other papers by Ted L. Tsui in
Current site
Google Scholar
PubMed
Close
Restricted access

Abstract

The balance of kinetic energy under severe storm conditions is investigated with a subsynoptic-scale upper-air network. The general shape of vertical profiles of the kinetic energy.generation and dissipation is very similar to that observed in well-developed major cyclones. The overall average magnitude of the observed energy transformations in the severe storm area is comparable to that of major synoptic-scale cyclones, but for a given storm the magnitude of energy transformations may vary widely depending on the existence and strength of mesoconvective systems in the area.

The balance of kinetic energy is also studied for the transient disturbances detected with the subsynoptic- scale upper-air network. Energetics features for those disturbances are depicted and discussed. The mid and lower troposphere appear to be the major source region of eddy kinetic energy.

Abstract

The balance of kinetic energy under severe storm conditions is investigated with a subsynoptic-scale upper-air network. The general shape of vertical profiles of the kinetic energy.generation and dissipation is very similar to that observed in well-developed major cyclones. The overall average magnitude of the observed energy transformations in the severe storm area is comparable to that of major synoptic-scale cyclones, but for a given storm the magnitude of energy transformations may vary widely depending on the existence and strength of mesoconvective systems in the area.

The balance of kinetic energy is also studied for the transient disturbances detected with the subsynoptic- scale upper-air network. Energetics features for those disturbances are depicted and discussed. The mid and lower troposphere appear to be the major source region of eddy kinetic energy.

Save