有限区域大气-海浪耦合模式的建立及海表粗糙度参数化试验

关皓; 周林; 王汉杰; 景丽

有限区域大气-海浪耦合模式的建立及海表粗糙度参数化试验

1.
解放军理工大学气象学院, 江苏南京 211101
2.
中国科学院东亚区域气候-环境重点实验室, 北京, 100029

基金项目: 国家自然科学基金(40675040);国家重点基础研究发展计划(“973”计划)(2006CB400505)

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出版历程
- 收稿日期: 2007-10-08
- 修回日期: 2008-05-20

A study on a coupled mesoscale atmosphere-ocean wave model and its sensitivity

1.
The Meteorological Institute of PLAUST, Nanjing 211101, China
2.
Key Laboratory of Regional Climate-Environment Research for Temperate East Asia (RCE-TEA), Chinese Academy of Sciences, Beijing 100029, China

摘要

摘要: 利用LINUX操作系统下的进程通讯(IPC)技术将中尺度大气模式MM5(V3)与第三代海浪模式WW3进行双向耦合,建立考虑大气-海浪相互作用的风浪耦合模式,在耦合模式中引入3种海表粗糙度参数化方案,通过对一次热带气旋过程的模拟,研究大气-海浪相互作用对热带气旋系统的影响及耦合模式对海表粗糙度参数化方案的敏感性。结果表明:LINUX系统下的进程通讯技术可以方便有效地实现大气和海浪模式的双向耦合,模式运行稳定;耦合模式能够较好的模拟热带气旋的发展和演变过程及其影响下海浪场的分布和演变,模拟结果对海表粗糙度参数化方案较敏感;海浪的反馈作用同时影响了海气间的动力和热力作用过程,不同的海表粗糙度参数化方案下,海浪对两种作用过程不同的影响程度决定了其对气旋系统强度的影响。
- 进程通讯 /
- 大气-海浪耦合模式 /
- 热带气旋 /
- 海表粗糙度
Abstract: The mesoscale atmospheric model MM5 (V3) and the third-generation ocean wave model WAVEWATCH Ⅲ are coupled each other in a two-way coupling manner using LINUXIPC technique.The coupled model is used to simulatea typical cyclone to study the interaction between the cyclonic circulation and ocean waves.The model sensitivity is tested to the three different parameterizations of sea surface roughness length.The results show that LINUXIPC technique is capable of coupling atmospheric and oceanic models and the coupled model performs very well.The coupled model is of good capability in simulating the cyclones and the results are sensitive to the paramet erizations of sea surface roughness.In view of the dependence of sea surface roughness on wave age,the ocean waves affect both dynamical and thermal processes witnin the ai-rsea interaction layer;the impact consequences are different as different parameterization schemes of sea surface roughness length are used.
- interprocess communication /
- atmosphere-ocean wave couped model /
- tropical cyclone /
- sea surface roughness length

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