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浑善达克沙地沙尘气溶胶的粒谱特征
引用本文:成天涛,吕达仁,陈洪滨,李占清.浑善达克沙地沙尘气溶胶的粒谱特征[J].大气科学,2005,29(1):147-153.
作者姓名:成天涛  吕达仁  陈洪滨  李占清
作者单位:1.复旦大学环境科学与工程系,上海,200433;中国科学院大气物理研究所中层大气与全球环境探测开放实验室,北京,100029;中国科学院研究生院,北京,100039
基金项目:国家自然科学基金;国家自然科学基金;海外青年学者合作研究基金
摘    要:浑善达克沙地是我国主要沙尘气溶胶源地之一,但对其沙尘气溶胶特征一直缺乏研究.2001年4月末到5月初,在内蒙古浑善达克沙地利用PMS Fssp-100型激光粒谱仪进行了大气气溶胶的外场观测,取得了晴天、扬沙和沙尘暴天气条件下沙尘粒子的数浓度采样资料,通过统计分析研究,总结出浑善达克沙地在不同天气条件下近地面沙尘气溶胶的粒谱分布规律.所得统计结果表明了与其他源地沙尘气溶胶的共同点、差异之处及其原因.这一结果也为沙尘气溶胶辐射气候效应的数值模拟提供了新的实测依据.

关 键 词:浑善达克沙地沙尘气溶胶粒谱分布
文章编号:1006-9895(2005)01-0147-07
修稿时间:2003年11月3日

The Size Distribution of Dust Aerosol Particles in Onqin Daga Sandland
CHENG Tian-Tao,LU Da-Ren,CHEN Hong-Bin and LI Zhan-Qing.The Size Distribution of Dust Aerosol Particles in Onqin Daga Sandland[J].Chinese Journal of Atmospheric Sciences,2005,29(1):147-153.
Authors:CHENG Tian-Tao  LU Da-Ren  CHEN Hong-Bin and LI Zhan-Qing
Abstract:Onqin Daga Sandland is one of important sources of dust aerosol in China. But it is very short of observation and research on the size distribution characteristics of dust aerosol from this region up to now. The size distribution of dust aerosol has been measured by PMS Fssp-100 in the Onqin Daga Sandland of the Inner Monoglia Autonomous Region of China between 30 April and 10 May 2001. A lot of data have been collected under different weather conditions such as fine, sand-blowing and sandstorm and so on. The rules of dust aerosol particle size distribution are found through statistical analysis. The results show that the dust size distributions are two-mode logarithm normal in dust storms and one-mode logarithm normal in fine or sand-blowing days. This result is quite useful to simulate radiation forcing and climate effects driven by dust aerosol in climate models.
Keywords:Onqin Daga Sandland  dust aerosol  size distribution
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