中山2000~2014年霾天气特征及气象影响因子.pdfVIP

中国环境科学 2016,36(6) ：1638~1644 China Environmental Science 中山市 2000~2014 年霾天气特征及气象影响因子 李颖敏 1,邓雪娇 2*,邓 涛 2,劳钊明 1,夏冠聪 1 (1. 中山市气象局,广东 中山 528400 ；2. 中国气象局广州热带 海洋气象研究所,广东省区域数值天气预报重点实验室,广东 广州 510080) 摘要：利用中山市 2000~2014 年气象资料及 2013~2014 年环境监测站资料,分析中山市霾特征及气象影响因子,结果表明,中山市霾日数年 际变化明显,最少为 11d,出现在 2005 年;最多为 134d,出现在 2008 年.霾天气主要发生在秋冬季节,霾日数最多的月份是 1 月,平均为 10.5d. 霾日 PM2.5 的平均浓度是非霾日的2.26 倍,PM2.5 是霾天气的重要污染物.中山市霾日典型天气形势有7 种:大陆高压型、海上高压型、均压 场型、冷锋前部型、台风外围下沉气流型、槽前脊后型、低压槽型.其中以大陆高压型占比例最高,为 52.03%,冷锋前部型造成的能见度最 低.气流轨迹聚类分析表明,影响中山的气流轨迹有 7 类,主要来源于东北方向的大陆和偏东方向的沿海;在东北方向气流轨迹影响下,污染 物浓度较高;在东部沿海的气流轨迹下,能见度较低,表明中山市的霾天气受区域传输影响显著. 关键词：霾特征；大气污染物；天气形势；气流轨迹 中图分类号：X513 文献标识码：A 文章编号：1000-6923(2016)06-1638-07 1 Haze characteristics associated with meteorological factors in Zhongshan during 2000~2014. LI Ying-min , DENG 2* 2 1 1 Xue-jiao , DENG Tao , LAO Zhao-ming , XIA Guan-cong (1.Zhongshan Meteorological Service, Zhongshan 528400, China；2.Key Laboratory of Regional Numerical Weather Prediction, Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou 510080, China). China Environmental Science, 2016,36(6)：1638~1644 Abstract ：Based on meteorological data from 2000 to 2014 and environmental monitoring data from 2013 to 2014 in Zhongshan, the haze characteristics and meteorological factors were analyzed. The result showed that haze days had obvious annual variability, there were 11 haze days in 2005 and 134 days in 2008. Haze in Zhongshan mainly occurred in autumn and winter. From 2000 to 2014, the average of haze days was 10.5 days in January, which was the most frequent month of haze pollution. PM2.5