A study of aerosol liquid water content based on hygroscopicity measurements at high relative humidity in the North China Plain
A study of aerosol liquid water content based on hygroscopicity measurements at high relative humidity in the North China Plain
复制标题
基于吸湿性测量的华北平原高相对湿度气溶胶液态水含量研究
DOI：
10.5194/acp-14-6417-2014
复制
发表时间：
2014-01-01
影响因子：
6.3
通讯作者：
Xu, W. Y.
中科院分区：
文献类型：
--
作者：
Bian, Y. X.;Zhao, C. S.;Xu, W. Y.
抽象。水可以是气溶胶颗粒的主要成分，也可以作为水相反应的介质。基于2009年7 - 8月在华北平原开展的"中国灰霾"（HaChi in China）夏季野外观测，利用气溶胶吸湿增长因子、粒子数粒径分布和相对湿度，提出了一种计算高相对湿度下气溶胶液态水含量的新方法。在高相对湿度（> 60%）条件下，用该方法计算的气溶胶液态水含量与热力学平衡模式（ISORROPIA II）计算的气溶胶液态水含量吻合较好，相关系数为0.96。在低相对湿度下（
Abstract. Water can be a major component of aerosol particles, also serving as a medium for aqueous-phase reactions. In this study, a novel method is presented to calculate the aerosol liquid water content at high relative humidity based on measurements of aerosol hygroscopic growth factor, particle number size distribution and relative humidity in the Haze in China (HaChi) summer field campaign (July–August 2009) in the North China Plain. The aerosol liquid water content calculated using this method agreed well with that calculated using a thermodynamic equilibrium model (ISORROPIA II) at high relative humidity (>60%) with a correlation coefficient of 0.96. At low relative humidity (