Recent climate modeling studies point to an increase in tropical cyclone rainfall rates in response to climate warming. These studies indicate that the percentage increase in tropical cyclone rainfall rates often outpaces the increase in saturation specific humidity expected from the Clausius-Clapeyron relation (~7% °C⁻¹). We explore the change in tropical cyclone rainfall rates over all oceans under global warming using a high-resolution climate model with the ability to simulate the entire intensity spectrum of tropical cyclones. Consistent with previous results, we find a robust increase of tropical cyclone rainfall rates. The percentage increase for inner-core tropical cyclone rainfall rates in our model is markedly larger than the Clausius-Clapeyron rate. However, when the impact of storm intensity is excluded, the rainfall rate increase shows a much better match with the Clausius-Clapeyron rate, suggesting that the “super Clausius-Clapeyron” scaling of rainfall rates with temperature increase is due to the warming-induced increase of tropical cyclone intensity. The increase of tropical cyclone intensity and environmental water vapor, in combination, explain the tropical cyclone rainfall rate increase under global warming.

最近的气候模型研究指出，随着气候变暖，热带气旋降雨率增加。这些研究表明，热带气旋降雨率的增加百分比通常超过了克劳修斯-克拉珀龙关系（〜7％°C ^-1）。我们使用高分辨率气候模型并模拟热带气旋的整个强度谱，探索了全球变暖下所有海洋热带气旋降雨率的变化。与以前的结果一致，我们发现热带气旋降雨率强劲增加。在我们的模型中，内芯热带气旋降雨率的增加百分比显着大于Clausius-Clapeyron率。但是，如果排除风暴强度的影响，则降雨速率的增加与克劳修斯-克拉皮隆速率的匹配度要好得多，这表明随着温度升高，降雨率的“超级克劳修斯-克拉佩隆”标度是由于变暖引起的。增加热带气旋强度。结合热带气旋强度和环境水蒸气的增加，