Radiative heating of clouds, particularly those in the upper troposphere, alters temperature gradients in the atmosphere, affecting circulation and precipitation in today's and future climates. However, the response of cloud radiative heating to global warming remains largely unknown. We study changes to high cloud radiative heating in a warmer climate, identify physical mechanisms responsible for these changes, and develop a theory based on well-understood physics to predict them. Our approach involves a stepwise procedure that builds upon a simple hypothesis of an upward shift in cloud radiative heating at constant temperature and gradually incorporates additional physics. We find that cloud radiative heating intensifies as clouds move upward, suggesting that the role of high clouds in controlling atmospheric circulations increases in a warmer climate.

中文翻译：

---

基础物理学预测随着变暖，高云辐射加热会更强


云的辐射加热，尤其是对流层上层的云，会改变大气中的温度梯度，影响当今和未来气候的环流和降水。然而，云辐射加热对全球变暖的响应在很大程度上仍然未知。我们研究在温暖气候下云高辐射加热的变化，确定导致这些变化的物理机制，并基于充分理解的物理学发展一种理论来预测它们。我们的方法涉及一个逐步过程，该程序建立在恒定温度下云辐射加热向上移动的简单假设之上，并逐渐纳入其他物理场。我们发现，随着云层的向上移动，云的辐射加热会增强，这表明在温暖的气候中，高云在控制大气环流方面的作用会增加。