Fast and slow Kelvin waves in the Madden-Julian Oscillation of a GCM
نویسندگان
چکیده
منابع مشابه
Tropical Cyclogenesis Associated with Kelvin Waves and the Madden–Julian Oscillation
The Madden–Julian oscillation (MJO) influences tropical cyclone formation around the globe. Convectively coupled Kelvin waves are often embedded within the MJO, but their role in tropical cyclogenesis remains uncertain. This case study identifies the influences of the MJO and a series of Kelvin waves on the formation of two tropical cyclones. Typhoons Rammasun and Chataan developed in the weste...
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[1] The Madden-Julian Oscillation (MJO) is the dominant component of the intraseasonal (30–90 days) variability in the tropical atmosphere. It consists of large-scale coupled patterns in atmospheric circulation and deep convection, with coherent signals in many other variables, all propagating eastward slowly ( 5 m s ) through the portion of the Indian and Pacific oceans where the sea surface i...
متن کاملThe Madden Julian Oscillation A Literature Review
The literature survey reviews our present understanding of the Madden Julian Oscillation. This perturbation to the circulation of the tropical atmosphere involves anomalies in climate elements such as pressure, wind, outgoing long wave radiation, and temperature. It is successfully simulated by the present generation of general climate and atmospheric general circulation models. The literature ...
متن کاملMoisture Modes and the Madden-Julian Oscillation
Moisture mode instability is thought to occur in the tropical oceanic atmosphere when precipitation is a strongly increasing function of saturation fraction (precipitable water divided by saturated precipitable water) and when convection acts to increase the saturation fraction. A highly simpli ed model of the interaction between convection and large-scale ows in the tropics suggests that there...
متن کاملModulation of radiative heating by the Madden‐Julian Oscillation and convectively coupled Kelvin waves as observed by CloudSat
[1] The vertical distribution of radiative heating affects the moist static energy budget and potentially the maintenance and propagation of the Madden‐Julian Oscillation (MJO). This paper usesCloudSat data to examine the radiative heating climatology in the tropics and the vertical structure of its modulation by the MJO and convectively coupled Kelvin Waves (KWs). Composites of active regions ...
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ژورنال
عنوان ژورنال: Quarterly Journal of the Royal Meteorological Society
سال: 1999
ISSN: 1477-870X,0035-9009
DOI: 10.1256/smsqj.55701