By interacting with radiation, aerosols perturb the Earth’s energy budget and thus the global precipitation amount. It was previously shown that aerosol‐radiation interactions lead to a reduction in the global‐mean precipitation amount. We have further demonstrated in aqua‐planet simulations that the local response to absorbing aerosols differs between the tropics and the extra‐tropics. In this study we incorporate an energy budget perspective to further examine the latitudinal‐dependence of the effect of aerosol‐radiation interaction on precipitation in idealized global simulations. We demonstrate that the transition between a positive local precipitation response in the tropics and a negative local precipitation response in the extra‐tropics occurs at relatively low latitudes (∼10°), indicating a transition between the deep‐tropics (in which the Coriolis force is low, hence direct thermally driven circulation, and associated divergence/convergence of energy/moisture, can form as a result of the diabatic‐heating) and their surroundings. In addition, we gradually increase the level of complexity of the simulations and demonstrate that, in the case of absorbing aerosols, the effect of land is to counteract some of the response both inside and outside the deep‐tropics due to the reduction in surface latent‐heat flux that opposes the diabatic‐heating. The effect of scattering aerosols is also examined and demonstrates a decrease in precipitation over land in both the tropics and extra‐tropics and no effect over the ocean. Finally, we examine these results in a more realistic set‐up and demonstrate that, although the physical mechanisms still operate, they are not significant enough to be discerned from the model’s natural‐variability.

中文翻译：

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快速气溶胶辐射对降水的地理依赖性的能量观

通过与辐射相互作用，气溶胶会扰乱地球的能源收支，从而扰乱全球的降水量。先前已证明，气溶胶-辐射相互作用导致全球平均降水量减少。我们在水行星模拟中进一步证明，热带地区和温带地区对吸收气溶胶的局部响应是不同的。在这项研究中，我们纳入了能源预算的观点，以进一步研究理想化的全球模拟中气溶胶-辐射相互作用对降水影响的纬度依赖性。我们证明，热带地区的正局部降水响应和温带地区的负局部降水响应之间的过渡发生在相对较低的纬度（〜10°），表示深热带（其中科里奥利力较低，因此直接由热驱动的循环以及由于绝热加热而形成的相关能量/水分的发散/会聚）之间的过渡。此外，我们逐渐提高了模拟的复杂性水平，并证明了在吸收气溶胶的情况下，土地的作用是抵消了深热带内部和外部的一些响应，这是由于表面潜伏减少所致。与绝热加热相反的热通量。还检查了气溶胶散布的影响，并证明了热带和温带地区陆地降水的减少，对海洋没有影响。最后，我们以更现实的方式检查这些结果，并证明，