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对流层光化学过程中的气粒转化研究

纪飞 苏文颖 秦瑜

大气科学2001,Vol.25Issue(2):269-276,8.
大气科学2001,Vol.25Issue(2):269-276,8.

对流层光化学过程中的气粒转化研究

A Study of the Gas-to-Particle Conversion in Photochemical Process

纪飞 1苏文颖 2秦瑜1

作者信息

  • 1. 北京大学地球物理系暴雨监测和
  • 2. 空军第七研究所北京2861信箱7分箱
  • 折叠

摘要

Abstract

By evaluating MM5 (the Fifth Generation Penn State/NCAR Mesoscale Model), RADM (Regional Acid Deposition Model) and MARS (The Model for an Aerosol Reacting System), a coupled regional photochemical model is developed to study the transformation processes from gas to particle. With this coupled model, the characteristics of spatial and temporal distribution and variation of regional tropospheric photochemical precursors, products in the northern China are studied, such as SO2, NO2, O3, H2SO4, and HNO3. On the basis of this, the ammonia emission is considered and its spatial and temporal distribution and variation are obtained. The main conclusions are: the distribution of total dry particles is strongly correlated with the emission of SO2, NO2, and NH3; the total dry aerosol amount is mainly determined by H2SO4 concentration in ammonia-rich environment; the water amount in aerosol does not have good relationship with the distribution of dry aerosol, and it is mainly determined by the relative humidity.

关键词

气溶胶/硫酸盐/气粒转化

分类

天文与地球科学

引用本文复制引用

纪飞,苏文颖,秦瑜..对流层光化学过程中的气粒转化研究[J].大气科学,2001,25(2):269-276,8.

大气科学

OA北大核心CSCD

1006-9895

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