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| 一类高阶位涡反演的算法及其应用 | |
| 引用本文： | 甘璐,赵南,沈新勇.一类高阶位涡反演的算法及其应用[J].气象学报,2011,69(3):412-422. |
| 作者姓名： | 甘璐 赵南 沈新勇 |
| 作者单位： | 1. 中国气象科学研究院,灾害天气国家重点实验室,北京,100081;北京市气象局,气象科技服务中心,北京,100089 2. 中国气象科学研究院,灾害天气国家重点实验室,北京,100081;南京信息工程大学,气象灾害省部共建教育部重点实验室,南京,210044 3. 南京信息工程大学,气象灾害省部共建教育部重点实验室,南京,210044 |
| 基金项目： | 国家自然科学基金项目(40775033); 国家重点基础研究发展规划项目(2009CB421503); 灾害天气国家重点实验室开放课题 |
| 摘 要： | 从位涡反演的基本定义和性质出发讨论了它的发展,指出基于非线性平衡(Chamey平衡)来进行位涡反演的局限性,要准确地反演中尺度系统还有待于发展高阶位涡反演算子.文中通过分析位涡反演算子的构造得出,高阶位涡反演算子的存在性问题最终归结为探讨高阶平衡流表达式,即高阶平衡方程的存在性问题.然而,平衡流在运动过程中对惯性重力波... |
| 关 键 词： | 位涡反演 平衡流 慢流形 高阶位涡反演 |
| 收稿时间： | 2009/3/11 0:00:00 |
| 修稿时间： | 2009/9/15 0:00:00 |
A higher order potential vorticity inversion algorithm and its application |
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| GAN Lu,ZHAO Nan and SHEN Xinyong.A higher order potential vorticity inversion algorithm and its application[J].Acta Meteorologica Sinica,2011,69(3):412-422. | |
| Authors: | GAN Lu ZHAO Nan and SHEN Xinyong |
| Institution: | GAN Lu1,3 ZHAO Nan1,2 SHEN Xinyong21.State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081,China2.Key Laboratory of Meteorological Disaster of Education,Nanjing University of Information Science and Technology,Nanjing 210044,China3.Meteorological Science and Technology Service Central,Beijing Meteorological Bureau,Beijing 100089,China |
| Abstract: | Having investingated into the general concept of potential vorticity inversion(hereafter,referred to as PV inversion) and its properties as well as its recent progress,the authors point out that this technology has deficiency in meso-scale systems research and,the higher-order PV inversion operator needs to be developed for these issues.The PV inversion operator depends on how to proper establish a balance equation to a great extent.However,the spontaneous emission of inertia-gravity waves makes the exact b... |
| Keywords: | PV inversion Balanced flow Slow manifold Higher-order PV inversion |
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