Numerical experiments on Typhoon Trami (2018) using a regional 1-km-mesh three-dimensional atmosphere–ocean coupled model in current and pseudo-global warming (PGW) climates were conducted to investigate future changes of a slow-moving intense typhoon under the warming climate. Over the warmer sea in the PGW climate, the maximum near-surface wind speed rapidly increased around the large eye of the simulated Trami. The stronger winds in the PGW simulation versus the current simulation caused a 1.5-fold larger decrease of sea surface temperature (SST) in the storm core-region. In the PGW climate, near-surface air temperature increased by 3.1°C. A large SST decrease due to ocean upwelling caused downward heat fluxes from the atmosphere to the ocean. The magnitude of the SST decrease depended strongly on initial ocean conditions. Consideration of the SST decrease induced by an intense typhoon, and a slow-moving storm in particular, indicated that such a typhoon would not always become more intense under the warmer climate conditions. An atmosphere–ocean coupled model should facilitate making more reliable projections of typhoon intensities in a warming climate.

在当前和拟全球变暖（PGW）气候中，使用区域1-km-mesh三维大气-海洋耦合模型对台风特拉米（2018）进行了数值实验，以研究慢速强台风在未来气候下的变化。气候变暖。在PGW气候中，在更温暖的海洋上，最大的近地表风速在模拟的Trami的大眼睛周围迅速增加。与当前的模拟相比，PGW模拟中的强风使风暴核心区域的海表温度（SST）降低了1.5倍。在PGW气候中，近地表气温升高了3.1°C。由于海洋上升而使海表温度大幅下降，导致从大气到海洋的热通量下降。SST下降的幅度在很大程度上取决于初始海洋条件。考虑到强台风引起的海表温度降低，尤其是一场缓慢的风暴，表明这种台风在温暖的气候条件下不会总是变得更加强烈。大气-海洋耦合模型应该有助于在变暖的气候中更可靠地估算台风强度。