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By using non-static atmosphere equations including basic current, heating force and friction, we discuss the balance amplitude of vertical motion in the conditions of constant heating force, linear and non-linear interaction between large-scale ascending motion and diabatic heating force. In the non-linear condition, the multiple equilibrium feature of the tropical cyclone development is discussed and the reason of the sudden varying of tropical cyclone intensity is studied preliminarily. 相似文献
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为推进气象业务现代化再作贡献──纪念《气象》复刊２０周年朱永（上海市气象局，２０００３０）值此《气象腹刊２０年之际，欣闻它被人选为“１９９２—１９９３年中国自然科学核心期刊”３００种之优秀行列，与《地球物理学报》并列第５４位，这是给《气象）｝复刊２０... 相似文献
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The barotropic primitive equations model is used in a numerical study of a tropical cyclone crossing the Subtropical high. It is revealed that apart from its own characteristics, sensitive factors having immediate effects on the motion of the tropical cyclone also include its radial distance from the center of the subtropical high, the variation in latitudinal location and intensity. A complex mechanism for nonlinear interactions among the tropical,subtropical high and β effect is also shown in the experiment, and expected to serve for the diagnosis and prediction of abnormal motion. 相似文献
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本文提出了应用测站探空资料计算层结稳定度指数(假相当位温递减率(θse)/p、沙瓦特指数等)的实用方法,并分析对比了沙瓦特指数的计算值,指出了文中所提近似算法具有较高精度;并设计了由测站资料输入到量值测站分布图输出的程序计算系统,为日常业务预报提供辅助诊断手段。 相似文献
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