有蒸发-风反馈和海-气相互作用的CISK开尔文波——热带
季节内振荡机制的进一步研究
李崇银;禚汉如;王作台
【期刊名称】《大气科学进展（英文版）》 【年(卷),期】2002(019)003
【摘要】The wave-CISK (cumulus convection heating feedback), the air-sea interaction and the evaporation-wind feedback are together introduced into a simple theoretical model, in order to understand their effect on driving tropical atmospheric intraseasonal oscillation (ISO). The results showed that among the introduced dynamical processes the wave-CISK plays a major role in reducing phase speed of the wave to be closer to the observed tropical ISO. While the evaporation-wind feedback plays a major role in unstabilizing the wave. The air-sea interaction has certain effect on slowing down the phase speed of the wave. Therefore, the wave-CISK and evaporation-wind feedback can be regarded as fundamental dynamical mechanism of the tropical ISO. This study also shows that since the effects of the evaporation-wind feedback and the air-sea interaction were introduced, the excited wave is zonally dispersive, which can dynamically explain the activity feature of the observed ISO in the tropical atmosphere very well.%将波动-CISK(积云对流加热反馈)、海-气相互作用和蒸发-风反馈都引入一个简单理论模式,研究了它们在驱动热带大气季节内振荡(ISO)中的作用.其结果表明,波动-
CISK在减慢激发波的位相速度以接近观测到的热带ISO的移速过程中起主要作用;而蒸发-风反馈的主要作用是使激发波不稳定;海-气相互作用在减慢激发波的移速方面也有一定作用.因此,波动-CISK和蒸发-风反馈可认为是热带ISO的主要动力学机制.本研究还表明,由于蒸发-风反馈和海-气相互作用的影响,激发波是一种频散波,这种频散性可以更好地解释热带大气中ISO的活动特征. 【总页数】12页(379-390)
【关键词】季节内振荡;CISK开尔文波;蒸发-风反馈;海-气相互作用 【作者】李崇银;禚汉如;王作台
【作者单位】Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;Department of Atmospheric Sciences, National Central University, Taibei 32057;Department of Atmospheric Sciences, National Central University, Taibei 32057 【正文语种】中文 【中图分类】P4 【文献来源】
https://www.zhangqiaokeyan.com/academic-journal-cn_advances-atmospheric-sciences_thesis/0201253032199.html 【相关文献】
1.热带大气季节内振荡的进一步分析 [J], 李崇银; 李桂龙 2.蒸发-风反馈机制的进一步研究 [J], 李崇银
3.相进一步我与基态原子相互作用的统计性质 [J], 张纪岳; 邱骊峰 4.季节内尺度热带-中纬相互作用机制初探 [J], 王国民; 黄土松
5.风清气正好扬帆——自治区地税局“进一步营造风清气正的发展环境”活动掠影 [J],
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有蒸发-风反馈和海-气相互作用的CISK开尔文波——热带季节内振荡机
