The dependency of geoengineered sulfate aerosol on the emission strategy

The dependency of geoengineered sulfate aerosol on the emission strategy
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地球工程硫酸盐气溶胶对排放策略的依赖性

DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
C. Timmreck
C. Timmreck
中科院分区：
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文献类型：
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作者：
U. Niemeier;H. Schmidt;C. Timmreck

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地球工程平流层硫酸盐气溶胶的气候效应取决于硫排放的策略，该策略决定了所产生的硫酸盐层的微物理演变，特别是气溶胶的半径和辐射影响。使用三维大气环流模型（GCM）（包括气溶胶微物理模型）进行的模拟显示，硫酸盐寿命随着排放率的增加而减少。此外，还研究了在排放的地点、当地和时间分布以及化学成分方面不同的情景。该研究显示了这些情景下颗粒半径、硫酸盐负荷和辐射影响的详细信息。皇家气象学会
The climatic effect of geoengineered stratospheric sulfate aerosol depends on the strategy for sulfur emission that determines the microphysical evolution of the resulting sulfate layer, in particular the radius and radiative impact of the aerosols. Simulations with a three‐dimensional general circulation model (GCM), including an aerosol microphysical model, show e.g. decreasing sulfate lifetime with increasing emission rate. Furthermore, scenarios that differ with respect to location, local and temporal distribution and chemical composition of the emissions are studied. The study shows detailed information on particle radius, sulfate burden and radiative impact for these scenarios. Copyright © 2010 Royal Meteorological Society