江苏省雾霾天气特征分析

发布时间：2018-02-11 09:39

本文关键词： 雾霾气候特征　出处：《气象科学》2016年04期 　论文类型：期刊论文

【摘要】：根据2007年1月—2013年12月江苏省国家基准气候站的逐日地面观测资料,分析了江苏省雾、霾日数的气候变化特征以及霾天气发生时的主要气象要素场特征。结果表明:(1)雾日数分布从江苏省东部向西部逐渐减少,霾分布由南向北逐渐递减。(2)年际变化上,雾日数呈现一定的波动,霾日数逐年增长。秋、冬两季雾日数较多;霾日数在夏季最少。雾、霾天气分别在08时和14时发生次数最多。(3)淮安中度霾居多,微风、高湿情况下霾发生概率最高,不同季节风向分布不同。(4)风速与能见度成正相关关系,春、夏季的相关性较差,秋、冬季相关性相对较好。能见度与相对湿度春、冬两季两者之间呈明显的线性负相关,而夏、秋季拟合曲线呈非线性负相关。
[Abstract]:According to the January 2007 December 2013 daily surface observation data of Jiangsu Province, the national climate stations in Jiangsu province were analyzed, the fog characteristics of main meteorological elements occurred climate characteristics of haze days and haze weather field. The results showed that: (1) the distribution of the number of fog days from the east to the west part of Jiangsu province is gradually reduced, the distribution by the haze south to north gradually decreasing. (2) the interannual variation of fog days, showing some fluctuations, haze days increased year by year. In autumn, winter two season a few more days of fog; haze days in summer at least. The fog haze occurrence in 08 and 14 respectively. Most (3) Huaian moderate breeze haze mostly, high humidity condition had the highest probability of haze in different seasons, different wind direction distribution. (4) the wind speed and the visibility of a positive correlation between spring and summer autumn poor correlation, winter is relatively good. Correlation of relative humidity and visibility in spring, showed a line between the two winter two season There is a negative correlation in sex, while the summer and autumn fitting curves are nonlinear negative correlation.

【作者单位】：南京信息工程大学气象灾害预报预警与评估协同创新中心/气象灾害教育部重点实验室;辽宁省人工影响天气办公室;
【基金】：国家自然科学基金重点资助项目(41030636)
【分类号】：X513

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