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The American Monsoon Systems

Carlos R. Mechoso; Andrew W. Robertson; Chester F. Ropelewski; Alice M. Grimm

Title:
The American Monsoon Systems
Author(s):
Mechoso, Carlos R.
Robertson, Andrew W.
Ropelewski, Chester F.
Grimm, Alice M.
Date:
Type:
Articles
Department:
International Research Institute for Climate and Society
Permanent URL:
Part Number:
1266
Book/Journal Title:
The Global monsoon system : research and forecast : report of the International Committee of the Third International Workshop on Monsoons (IWM-III) 2-6 November 2004, Hangzhou, China
Book Author:
Chang, Chih-Pei
Publisher:
World Meteorological Organization
Publisher Location:
Geneva
Abstract:
This paper examines similarities and differences among major features of the North and South American monsoon systems. Over both North and South America the summertime circulation shows upper-level anticyclone/low-level heat low structures. These develop at different distances from the equator. It is argued that ascent to the east where convective and subtropical convergence zones develop, and subsidence over the cool waters of the eastern Pacific where stratocumulus decks provide a radiative heat sink to the tropical atmosphere are integral and unifying aspects of both monsoon systems. The intraseasonal and interannual variability of the systems are contrasted. The reported links between anomalies in soil conditions and sea surface temperatures are marginal, and consistently long-range predictability is low. Ropelewski et al. (2004) and Grimm et al. (2004) focus on each of the American monsoon systems in companion papers.
Subject(s):
Atmospheric sciences
Meteorology
Item views:
123
Metadata:
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