Modeling Tropical Convergence Based on the Moist Static Energy Budget
Open Access
- 1 January 1987
- journal article
- Published by American Meteorological Society in Monthly Weather Review
- Vol. 115 (1) , 3-12
- https://doi.org/10.1175/1520-0493(1987)115<0003:mtcbot>2.0.co;2
Abstract
The vertically integrated moist static energy equation provides a convenient starting point for the construction of simple models of the time-mean low level convergence in the tropics. A vertically integrated measure of the moist static stability, the “gross moist stability,” proves to be of central importance. Minima in this quantity mark the positions of the tropical convergence zones. We argue that the positions of these minima are determined by the time-mean moisture field, which is, in turn, closely tied to the time-mean surface temperature. Abstract The vertically integrated moist static energy equation provides a convenient starting point for the construction of simple models of the time-mean low level convergence in the tropics. A vertically integrated measure of the moist static stability, the “gross moist stability,” proves to be of central importance. Minima in this quantity mark the positions of the tropical convergence zones. We argue that the positions of these minima are determined by the time-mean moisture field, which is, in turn, closely tied to the time-mean surface temperature.Keywords
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