The Effects of Nonlinear Eddy Coefficients on Rising Line Thermals

The investigation reported is concerned with the time evolution of a dry line thermal in a stratified atmosphere. The base state is assumed to be hydrostatic, homogeneous in any horizontal plane, dry, with a zero ambient wind. The thermal structure can vary between slightly stable and slightly unsta...

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Bibliographic Details
Published in:Journal of the atmospheric sciences 1974-11, Vol.31 (8), p.2046-2057
Main Authors: Drake, Ronald L., Coyle, Patrick D., Anderson, Daniel P.
Format: Article
Language:English
Online Access:Get full text
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Summary:The investigation reported is concerned with the time evolution of a dry line thermal in a stratified atmosphere. The base state is assumed to be hydrostatic, homogeneous in any horizontal plane, dry, with a zero ambient wind. The thermal structure can vary between slightly stable and slightly unstable conditions. The base state is initially perturbed by excess heating, or a motion field, or both. The system considered is highly nonlinear and is, therefore, solved numerically.
ISSN:0022-4928
1520-0469
DOI:10.1175/1520-0469(1974)031<2046:TEONEC>2.0.CO;2