苏州城市灰霾及气溶胶对大气消光贡献的模拟研究*

南京大学学报(自然科学版) ›› 2013, Vol. 49 ›› Issue (3): 311–319.

苏州城市灰霾及气溶胶对大气消光贡献的模拟研究*

钱俊龙¹，刘红年¹**，唐丽娟²，朱焱²，杨金彪²，朱莲芳²，蒋维嵋¹

出版日期:2015-11-19 发布日期:2015-11-19
作者简介: (1.南京大学大气科学学院，南京，210093;2.江苏省苏州市气象局，苏州，215131)
基金资助:
国家重点基础研究发展规划(973)项日(2010CB428501)，公益性行业科研专项(GYHY201206011)，江苏省自然
科学基金(BK2012314)，江苏高校优势学科建设工程

Numerical simulation of the urban haze and the contribution of aerosol
to ambient light extinction in the Suzhou area , Jiangsu，eastern China

Qian Jun一Long¹ ,Liu Hong Nian¹*，Tang Li一Juan²，Zhu Yan²,Yang Jin Biuo²Zhu Lian- Fang²，Jiang Wei-Mei¹

Online:2015-11-19 Published:2015-11-19
About author: (1 .School of Atmospheric Science，Nanjing University,Nanjing,210093,China
2. Suzhou Meteorological Bureau,Suzhou,215131 ,China)

摘要/Abstract

摘要： 利用南京大学空气质量模式(NJU-CAQPS)对苏州地区2010年1、4、7、10月中旬共19 d灰
霾状况进行数值模拟，PM^₁₀,PM^_2.5、能见度等参数的模拟口平均与观测值模拟口平均比值分别为0. 9 ,
1.1、0、9.苏州北部郊区局地PM^₁₀,PM ^_2.5严重超标，硫酸盐、硝酸盐等二次气溶胶浓度高值区位于主城
区西部;模拟期间(总共456 h)中有99 h出现灰霾，发生率为21.7%，主城区西部最容易发生灰霾;城区
硫酸盐对消光系数的贡献率最高，为39.1%硝酸盐、有机物、黑碳的贡献率分别为15.6%,18.3%和10.0% （明显高于郊区）.

Abstract: Nanjing University City Air Quality Prediction System(NJU一CAQPS) is used to simulate haze weather
in Mid January,April,July and October.The ratios of PM10，PM2.5，visibility, etc. between the simulated values and
the observed values are 0. 9，1.1,0.9 respectively.The suburb area in northern Suzhou suffers from high value of
PM^₁₀ and PM ^_2.5 beyond the threshold ,the concentration of sulfate and nitrate has hot spot on west side of city. Dur-
ing the 456 simulation hours，there are 99 hours that haze occurred .which covers 21.7%of total time. Sulfate in
downtown area contributes the most to extinction coefficients,with ratio of 39. 1%，nitrate,organics and black carbon
respectively contributes 15. 6%，18. 3%and 10.0%，which are significant higher than those in suburb area.

钱俊龙¹，刘红年¹**，唐丽娟²，朱焱²，杨金彪²，朱莲芳²，蒋维嵋¹. 苏州城市灰霾及气溶胶对大气消光贡献的模拟研究*[J]. 南京大学学报(自然科学版), 2013, 49(3): 311–319.

Qian Jun一Long¹ ,Liu Hong Nian¹*，Tang Li一Juan²，Zhu Yan²,Yang Jin Biuo²Zhu Lian- Fang²，Jiang Wei-Mei¹. Numerical simulation of the urban haze and the contribution of aerosol
to ambient light extinction in the Suzhou area , Jiangsu，eastern China
[J]. Journal of Nanjing University(Natural Sciences), 2013, 49(3): 311–319.

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