In this study, both an atmospheric model [Weather Research and Forecasting (WRF) model] and an atmosphere (WRF)-ocean (Princeton Ocean Model; POM) coupled model are used to simulate the tropical cyclone (TC) Kaemi (2006). By comparing the simulation results of the models, effects of oceanic elements, especially the TC-induced sea surface temperature (SST) cooling, on the simulated TC size and destructiveness are identified and analyzed. The results show that there are no notable differences in the simulated TC track and its intensity between the uncoupled and coupled experiments; however, there are large differences in the TC size (i.e., the radius of gale-force wind) between the two experiments, and it is the TC-induced SST cooling that decreases the TC size. The SST cooling contributes to the decrease of air-sea moisture difference (ASMD) outside the TC eyewall, which subsequently leads to the decreases in surface enthalpy flux (SEF), radial sea-level pressure gradient, absolute vorticity advection, and wind speed outside the TC eyewall. As a result, the TC size and size-dependent TC destructive potential all decrease remarkably.

在这项研究中，大气模型[天气研究和预报（WRF）模型]和大气（WRF）-海洋（普林斯顿海洋模型； POM）耦合模型都用于模拟热带气旋（TC）Kaemi（2006）。通过比较模型的仿真结果，确定并分析了海洋要素，尤其是TC诱导的海面温度（SST）冷却对模拟TC尺寸和破坏性的影响。结果表明，在未耦合实验和耦合实验之间，模拟TC轨迹及其强度没有显着差异。但是，两个实验之间的TC大小（即强风半径）存在很大差异，并且是TC诱导的SST冷却减小了TC大小。SST冷却有助于降低TC眼壁外部的空气-海洋湿度差（ASMD），从而导致表面焓通量（SEF），径向海平面压力梯度，绝对涡流平流和外部风速减小TC眼墙。结果，TC尺寸和与尺寸相关的TC破坏电位都显着降低。