contributor author | Xu, Qin | |
date accessioned | 2017-06-09T14:29:15Z | |
date available | 2017-06-09T14:29:15Z | |
date copyright | 1989/09/01 | |
date issued | 1988 | |
identifier issn | 0022-4928 | |
identifier other | ams-20172.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4156371 | |
description abstract | The Sawyer?Eliassen (S?E) equation for frontal circulations forced by a geostrophic stretching deformation is extended to include the effects of both negative moist potential vorticity (MPV) and eddy viscosity. Since the moist (precipitation) region depends on the vertical motion and thus needs to be solved together with the frontal circulation, the extended S?E equation is a nonlinear, elliptic, partial differential equation of sixth order. When MPV is positive and viscosity is negligible, this equation degenerates into the conventional S?E equation. The existence, uniqueness and stability of the solutions of the extended S?E equation in the presence of negative MPV (but still stable to viscous moist symmetric perturbations) are examined both analytically and numerically. | |
publisher | American Meteorological Society | |
title | Extended Sawyer–Eliassen Equation for Frontal Circulations in the Presence of small Viscous Moist Symmetric Stability | |
type | Journal Paper | |
journal volume | 46 | |
journal issue | 17 | |
journal title | Journal of the Atmospheric Sciences | |
identifier doi | 10.1175/1520-0469(1989)046<2671:ESEFFC>2.0.CO;2 | |
journal fristpage | 2671 | |
journal lastpage | 2683 | |
tree | Journal of the Atmospheric Sciences:;1988:;Volume( 046 ):;issue: 017 | |
contenttype | Fulltext | |