ZHANG Yingjie 1 ， ZHAO Tianliang 1 ， HAN Yongxiang 1 ， KONG Shaofei 1 ， TANG Lili 2 ， YU Hongxia 3
(1. a. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters; b. Key Laboratory for Aerosol-Cloud Precipitation of China Meteorological Administration， Nanjing University of Information Science and Technology， Nanjing 210044， China； 2. Jiangsu Environmental Monitoring Center， Nanjing 210029， China； 3. Jiangsu Provincial Environmental Protection Bureau， Nanjing 210036， China)
Abstract：The air pollutant source regions impacting Nanjing in August was modeled with WRF-FLEXPART from 2003 to 2012. Based on the modeling of air pollutant backwards trajectories in 10 a, the boundary of the surrounding sources of air pollutants transporting to Nanjing were climatologically analyzed, and their interannual variability was quantitatively characterized for determining the air pollutant source areas impacting air quality during 2014 Youth Olympics Games in Nanjing. The results show that the dominant sources with less interannual variations in August are concentrated in Nanjing and its immediate surrounding areas in southern Jiangsu and southeastern Anhui. With the increase of transport time, the air pollutant sources expand from Nanjing southeastwards to the region in southern Jiangsu, Shanghai and northern Zhejiang, southwestwards to the region in southern Anhui, northeastern Jiangxi and north-eastern Hubei, and northeastwards to the area in northern and central Jiangsu and eastern Anhui, but the air pollutant source areas are limited in northwest of Nanjing. The strong interannual variability in the source regions exists over the outer edges in Jiangsu, Anhui, Jiangxi, Hubei and Zhejiang.
Keywords: FLEXPART particle diffusion model; climate simulation; source region; YouthOlympicGamesin Nanjing; YangtzeRiverDelta region
中图分类号：P402 文献标志码：A
文章编号：1008-5548(2015)01-0016-06
DOI:10.13732/j.issn.1008-5548.2015.01.004
收稿日期：2014-04-05， 修回日期：2014-04-25，在线出版时间：2015-03-02。
基金项目：江苏省科技支撑计划——社会发展重大研究项目， 编号：BE2012771；南京信息工程大学人才启动基金项目，编号：20110304；江苏省高校优势学科建设工程资助项目。
第一作者简介：张英杰（1988—），男，硕士研究生，研究方向为大气环境。 E-mail：zyjnuist@gmail.com。
通信作者简介：赵天良（1962—），男，教授，研究方向为大气环境与全球变化。 E-mail：tlzhao@nuist.edu.cn。
