Early growth dynamical implications for the steerability of stratospheric solar radiation management via sulfur aerosol particles
Early growth dynamical implications for the steerability of stratospheric solar radiation management via sulfur aerosol particles
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DOI：
10.1002/2016gl070701
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发表时间：
2016-09-28
影响因子：
5.2
通讯作者：
Lawrence, Mark G.
中科院分区：
文献类型：
--
作者：
Benduhn, Francois;Schallock, Jennifer;Lawrence, Mark G.
气溶胶增长动力学可能对通过硫粒子进行平流层太阳辐射管理的可操纵性产生影响。本文推导出一组临界初始生长条件，分析作为两个关键参数的函数：注入的硫酸的初始浓度及其与周围空气的稀释率。基于这种分析，早期气溶胶增长动力学制度可以被定义和分类的可能性，作为候选人的辐射有效的气溶胶的控制生成。我们的研究结果表明，满足所有临界条件的制度将需要飞机涡轮机被用来提供足够的湍流。该制度的参数空间是狭窄的，与陡峭的梯度，从而指向潜在的微调要求。需要更多的研究、开发和测试来完善我们的发现并确定其全球范围的影响。
Aerosol growth dynamics may have implications for the steerability of stratospheric solar radiation management via sulfur particles. This paper derives a set of critical initial growth conditions that are analyzed as a function of two key parameters: the initial concentration of the injected sulfuric acid and its dilution rate with the surrounding air. Based upon this analysis, early aerosol growth dynamical regimes may be defined and classified in terms of their likelihood to serve as candidates for the controlled generation of a radiatively effective aerosol. Our results indicate that the regime that fulfills all critical conditions would require that airplane turbines be used to provide sufficient turbulence. The regime's parameter space is narrow and related to steep gradients, thus pointing to potential fine tuning requirements. More research, development, and testing would be required to refine our findings and determine their globalscale implications.