AI 中文总结
该研究协调了理论预测与对流解析模型的矛盾，指出热带对流随变暖是重新分布而非减弱，其沿等温线的对流运动和输送水对变暖高度不变，简化了热带大气变暖响应的预期。
AI 中文摘要
数十年来，理论观点一直预测，随着地表变暖，热带对流会大幅减弱，但对流解析模型显示，整层积分的对流质量输送没有显著变化，输送的体积却有所增加。本文通过论证两种主要理论观点所识别的是对流运动的重新分布，而非简单减弱，来协调这一明显矛盾。因此，常用的水文论证捕捉到单一高度的减弱，而这被对流层向上膨胀导致的高层增强所抵消。此外，随变暖升高的大气结构之后的对流质量通量减少，仅反映了高层空气密度的降低。研究表明，沿等温线的对流运动和输送的水对地表变暖高度不变，而预测单个高度对流响应的能力正是这种不变性的体现。这些发现共同重塑并简化了长期以来对热带大气如何响应变暖的预期。
英文摘要
Theoretical arguments have for decades anticipated substantial weakening of tropical convection as the surface warms, yet convection-resolving models show no robust change in column-integrated convective mass transport and an increase in transported volume. Here we reconcile this apparent discrepancy by demonstrating that the two main theoretical arguments identify a redistribution, rather than a straightforward reduction, of convective motions. A commonly invoked hydrological argument accordingly captures a weakening at a single altitude that is offset by strengthening aloft as the troposphere expands upward. Further, reduced convective mass flux following atmospheric structures that rise with warming simply reflects decreasing air density aloft. Convective motions and transported water are shown to be highly invariant to surface warming along isotherms, and the ability to predict convective responses at individual altitudes is a manifestation of this invariance. Together, these findings recast and simplify long-standing expectations of how the tropical atmosphere will respond to warming.
