区域台风—海洋耦合模式的构建及应用研究

发布时间：2018-06-12 16:18

本文选题：稳定基态海洋模式数据集 + 台风　；参考：《大气科学》2017年01期

【摘要】：由于海洋业务化预报模式对中尺度涡等海洋中、小尺度物理过程的准确预报仍然具有较大困难,因此,区域台风—海洋耦合模式初始化采用稳定基态的海洋数据是当前的有效手段。本文通过对两组台风个例的模拟,检验了基于稳定基态海洋数据的区域台风—海洋耦合模式的模拟效果,并通过6组敏感性试验,研究了初始台风最大风速半径(Radius of maximum wind speed,RMWS)对耦合模式模拟结果的影响。结果表明:初始台风RMWS的影响贯穿整个模拟阶段,RMWS越大,下垫面热通量输送量级越大,台风强度越强。在台风强烈的风场作用下,海温反馈也越显著,从而引起热通量降低幅度增大。RMWS作为与台风结构密切相关的物理量在度量台风强度中起到了重要作用。
[Abstract]:Due to the difficulty of accurate prediction of small-scale physical processes in mesoscale vortices and other oceans by the ocean operational forecasting model, It is an effective method to initialize the regional typhoon-ocean coupling model by using the stable ground state ocean data. In this paper, the simulation results of regional typhoon ocean coupling model based on stable ground state ocean data are tested by simulating two groups of typhoon cases, and six groups of sensitivity tests are carried out. The influence of the maximum wind radius of the initial typhoon, Radius of maximum wind speedspeed RMWS, on the simulation results of the coupled model is studied. The results show that the greater the effect of initial typhoon RMWS is during the whole simulation stage, the greater the heat flux level of underlying surface is and the stronger the typhoon intensity is. Under the strong wind field of typhoon, the SST feedback is more significant, which causes the decrease of heat flux to increase. RMWS, as a physical quantity closely related to typhoon structure, plays an important role in measuring typhoon intensity.
【作者单位】：解放军理工大学气象海洋学院;
【基金】：国家自然科学基金项目41305045、41230421 江苏省自然科学基金面上项目BK20151447~~
【分类号】：P732;P457.8

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