应用WRF-chem探究气溶胶污染对区域气象要素的影响  

Effect of Particle Pollution on Regional Meteorological Factors in China

作　　者：马欣 陈东升[2] 温维 盛黎 胡江凯 佟华 尉鹏[4] 

机构地区：[1]国家气象中心数值预报中心,北京100081 [2]北京工业大学环境与能源工程学院,北京100124 [3]京津冀环境气象预报预警中心,北京100089 [4]中国环境科学研究院,北京100012

出　　处：《北京工业大学学报》2016年第2期285-295,共11页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(41305104);公益性行业(气象)科研专项资助项目(GYHY201306061)

摘　　要：采用新一代on-line空气质量模式Weather Research Forecasting Model with Chemistry(WRF-chem)模拟探究中国气溶胶污染对4个季节净辐射量、温度、大气边界层高度和降水量等气象要素的影响.模型验证结果表明:WRF-chem可反映出我国四季气象条件和PM_(10)的浓度分布特点.由于气溶胶气候效应作用,受气溶胶污染影响,2006年1、4、7、10月月均净辐射量下降约10 W/m^2,月均温度下降0.15℃,月均PBL高度下降15 m.月均净辐射量、温度、PBL高度显著下降的区域集中在京津冀、长江三角洲、珠江三角洲、山东半岛、武汉及周边、长株潭和成都-重庆等气溶胶浓度较高的地区,秋季下降量最高,春季最低.与其他气象要素不同,气溶胶污染使得降水量有所增加.通过与美洲、欧洲等地区的相关研究对比发现,由于我国气溶胶污染较为严重,气溶胶对气象要素的影响更加显著.In this paper,the new generation of on-lineair quality model Weather Research Forecasting Model with Chemistry(WRF-chem) was applied to investigate the effect of particle pollution on net radiation,temperature at 2 meter(T_2),the height of atmosphericboundary layer(PBL) and precipitation in January,April,July and October respectively in 2006.The model evaluation result shows that WRF-chem can reflect the characteristics of meteorological factors and the PM_(10) concentration distributions in four seasons.Under the influence of particle's direct,semi-direct and indirect effects,and monthly-mean net radiation decreased-9.12,-8.53,- 10.94 and- 11.23 W/m^2,monthlymean T_2 decreased-0.18,-0.12,-0.17,- 0.221,and monthly-mean height of PBL-16.44,-8.42,-15.48,-22.59 m in January,April,July and October respectively.Obvious decrease occurs in Beijing-Tianjin-Hebei(BTH),Yangtze River Delta(YRD) and Pearl River Delta(PRD)region,Shandong Peninsula,Wuhan and surrounding,Chang-Zhu-Tan and Chengdu-Chongqing regions where the particle concentration is high and the highest decrease occurs in autumn.

关 键 词：气溶胶污染 气象要素 气候效应 WRF-chem 

分 类 号：X51[环境科学与工程—环境工程]