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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27360


    Title: CLOUD CLUSTERS, KELVIN WAVE CISK, AND THE MADDEN JULIAN OSCILLATIONS IN THE EQUATORIAL TROPOSPHERE
    Authors: CHO,HR;FRAEDRICH,K;WANG,JT
    Contributors: 大氣物理研究所
    Keywords: FREQUENCY INTRASEASONAL OSCILLATIONS;TROPICAL ATMOSPHERE;WIND;DYNAMICS;PACIFIC;ORIGIN;MODES
    Date: 1994
    Issue Date: 2010-06-29 18:36:59 (UTC+8)
    Publisher: 中央大學
    Abstract: The Kelvin wave-CISK theory of the Madden-Julian oscillations in the tropical troposphere is reexamined by introducing a phase lag between the maximum cloud heating and the maximum convergence of the Kelvin wave. The study was motivated by the observations in the equatorial Pacific that clouds in the Kelvin waves are organized into westward propagating mesoscale cloud clusters. Since this phase lag depends on the propagation speed of the Kelvin waves, the waves become dispersive, and this leads to a favored growth of long waves. The results of this study suggest that the presence of organized mesoscale cloud systems needs to be parameterized directly into those climate models that cannot adequately describe their dynamics.
    Relation: JOURNAL OF THE ATMOSPHERIC SCIENCES
    Appears in Collections:[大氣物理研究所 ] 期刊論文

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