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/lp/american-meteorological-society/on-the-coexistence-of-an-evaporation-minimum-and-precipitation-maximum-2A78EPA34U
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- Publisher
- American Meteorological Society
- Copyright
- Copyright © 2002 American Meteorological Society
- ISSN
- 1520-0442
- DOI
- 10.1175/1520-0442(2003)016<1003:OTCOAE>2.0.CO;2
- Publisher site
- See Article on Publisher Site
Abstract
Climatologically, the equatorial western Pacific warm pool region is a local minimum in surface evaporation and a local maximum in precipitation. The moist static energy budget in this situation requires a collocated minimum in radiative cooling of the atmosphere, which is supplied by the greenhouse effect of high clouds associated with the precipitation. However, this diagnostic statement does not explain why the evaporation minimum should coexist with the precipitation maximum. A simple physical model of the Walker circulation is used as the basis for an argument that the surface heat budget and the radiative effects of high clouds are essential to the existence of this feature, while variations in surface wind speed are not, though the latter may play an important role in determining the sea surface temperature.
Journal
Journal of Climate – American Meteorological Society
Published: May 13, 2002