Purpose of Review

Some aerosols absorb solar radiation, altering cloud properties, atmospheric stability and circulation dynamics, and the water cycle. Here we review recent progress towards global and regional constraints on aerosol absorption from observations and modeling, considering physical properties and combined approaches crucial for understanding the total (natural and anthropogenic) influences of aerosols on the climate.

Recent Findings

We emphasize developments in black carbon absorption alteration due to coating and ageing, brown carbon characterization, dust composition, absorbing aerosol above cloud, source modeling and size distributions, and validation of high-resolution modeling against a range of observations.

Summary

Both observations and modeling of total aerosol absorption, absorbing aerosol optical depths and single scattering albedo, as well as the vertical distribution of atmospheric absorption, still suffer from uncertainties and unknowns significant for climate applications. We offer a roadmap of developments needed to bring the field substantially forward.

中文翻译：

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气溶胶吸收：全球和区域限制的进展。

 审查目的

一些气溶胶吸收太阳辐射，改变云特性、大气稳定性和环流动力学以及水循环。在这里，我们回顾了观测和建模中气溶胶吸收的全球和区域限制的最新进展，考虑了对于理解气溶胶对气候的总体（自然和人为）影响至关重要的物理特性和综合方法。

 最近的发现

我们强调由于涂层和老化而导致的黑碳吸收变化、棕碳表征、灰尘成分、云上方吸收气溶胶、源建模和尺寸分布以及根据一系列观测结果验证高分辨率模型的发展。

 概括

总气溶胶吸收、吸收气溶胶光学深度和单散射反照率以及大气吸收的垂直分布的观测和建模仍然面临着对气候应用具有重要意义的不确定性和未知性。我们提供了大幅推进该领域所需的发展路线图。