中文摘要：

利用中尺度大气模式MM5（V3）和第3代海浪模式WWATCH建立考虑大气-海浪相互作用的风浪耦合模式。在耦合模式中引入考虑波浪影响的海表粗糙度参数化方案,大气模式分量提供海面10m风场驱动海浪模式分量运行,并利用海浪模式分量反馈的波龄参数计算海表粗糙度。利用耦合模式模拟南海的一次台风过程,通过3组对比试验,检验耦合模式对台风过程的模拟效果并研究大气-海浪相互作用对台风过程的影响。结果表明：耦合模式能够较好地模拟南海的台风过程,与非耦合大气模式相比,其模拟的台风强度略有增强,路径变化不大;耦合模式对台风过程中海表热通量及降水影响显著,在台风充分发展过程中,耦合模式模拟的海表热通量增强,台风螺旋雨带上尤其是台风路径的右侧,耦合模式模拟的降水强于非耦合模式;耦合模式较好地模拟了台风过程海浪场的分布和演变,与非耦合模式相比,其模拟的海浪场增强,与实际更为接近;考虑了海表粗糙度对波浪的依赖关系后,海浪场同时影响海表的动力过程和热力过程,从本次个例看,在台风发展初期,海浪对海表动力作用影响显著,其反馈作用使台风系统减弱,但在台风充分发展后,耦合系统中海表热通量增加,热力作用显著增强,海浪的反馈作用有利于台风系统的发展和维持。

英文摘要：

The exchange of heat,momentum,and moisture between air and sea has long been recognized as a fundamental process in the development of mesoscale atmospheric phenomena such as tropical cyclones,boundary layer jets,and heavy precipitating systems.The air-sea exchange takes place at the air sea interface in the wave boundary layer,so ocean waves play potential impacts on the air-sea interaction process.The mesoscale atmospheric model MM5（V3） and the third-generation of ocean wave model Wave Watch Ⅲ are coupled each other in a two-way coupling manner using a Linux IPC（inter-process communication） technique.The coupled model is used to simulate a strong typhoon process in the South China Sea and the interaction between atmosphere and ocean waves is studied.The two models are coupled using the parameterization scheme of sea surface roughness proposed by Smith in 1992.In the parameterization scheme,the sea surface roughness length depends on the wave age,which is calculated in the ocean wave model.In the coupling model run,the atmospheric model provides the sea surface wind to drive the ocean wave model,and the calculated wave age is inputted to the atmospheric model to calculate the sea surface roughness using the special PBL module.In this way,the two models are coupled each other and output both atmospheric and ocean wave parameters simultaneously.Three different experimental schemes are designed in this paper to valuate the function of the coupled model,which are named control,one-way and two-way coupling runs,respectively.The control run is an ordinary atmospheric model without any oceanic feedback,and the one-way coupling considers the driving wind field from the atmospheric model and its impact on the ocean waves only.The two-way coupling runs the ocean wave model and atmospheric model simultaneously using the coupling scheme mentioned above.In the coupling run,the process of typhoon is simulated by the coupled model and the exchange time step is 15 minutes.The experiment results show that the coupled m