可溶性有机气溶胶对暖云形成的影响研究

The impact of water - soluble organic compounds on warm cloud forming process

本文首先对传统Kohler方程进行拓展，然后利用拓展后的Kohler方程从理论分析的角度讨论了我国华北地区主要的三种可溶性有机气溶胶对暖云形成过程的影响。研究发现可溶性有机物主要通过减小表面张力作用来降低临界过饱和比；C2H2O4、C3H4O4和C4H6O4在各个模态下都能够明显降低临界饱和比，且临界饱和比的减小程度与其含量成正比；WSOCs影响气溶胶粒子活化主要体现在小尺度范围的影响；三种主要可溶性有机物中，C3H4O4对气溶胶粒子的临界饱和比减小作用最为显著，更有利于暖云的形成。

Based on extending Traditional kohler equation, this paper study the impact of three water soluble dicarboxylic acid （ WSOC ）on warm cloud forming process in north China. From the typical kinds of research,I found that WSOC can reduce critical saturation ratio mainly through decreasing surface tension of droplet,especially the Malonate, and the impact appear at small-scale particles.