Modeling the effects of heterogeneous cloud chemistry on the marine particle size distribution
Modeling the effects of heterogeneous cloud chemistry on the marine particle size distribution
复制标题
模拟异质云化学对海洋颗粒尺寸分布的影响
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
T. Larson
中科院分区：
文献类型：
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作者：
D. Hegg;P. Yuen;T. Larson
利用具有尺寸分辨化学的显式微物理云模式来评估外部混合的海洋气溶胶对云内硫酸盐产量的影响以及硫酸盐在干颗粒尺寸上的分布情况。评估了这种分布对硫酸盐的光散射效率及其作为云凝结核(CCN)的效率的影响。模式结果表明，碱性海盐粒子的存在对云内硫酸盐的大小、粒度分布、光散射效率和CCN效率有显著影响。
An explicit microphysical cloud model with size-resolved chemistry is utilized to assess the impact of an externally mixed, marine aerosol on the magnitude of sulfate production in-cloud and how the sulfate is distributed over dry particle size. Consequences of the distribution for the light-scattering efficiency of the sulfate and its efficiency as cloud condensation nuclei (CCN) are evaluated. The model results suggest that the presence of alkaline sea-salt particles has a significant impact on the magnitude of sulfate produced in-cloud, its size distribution, light-scattering efficiency, and CCN efficiency.