| 江苏省雾霾天气特征分析 |
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| 引用本文： | 曹剑秋,郭品文.江苏省雾霾天气特征分析[J].气象科学,2016,36(4):483-493. |
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| 作者姓名： | 曹剑秋 郭品文 |
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| 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, 南京 210044;辽宁省人工影响天气办公室, 沈阳 110166,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, 南京 210044 |
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| 基金项目： | 国家自然科学基金重点资助项目（41030636） |
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| 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。
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| 关 键 词： | 雾 霾 气候特征 |
| 收稿时间： | 3/8/2015 12:00:00 AM |
| 修稿时间： | 2015/4/13 0:00:00 |
Characteristics analysis on fog and haze weather in Jiangsu province |
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| CAO Jianqiu and GUO Pinwen.Characteristics analysis on fog and haze weather in Jiangsu province[J].Scientia Meteorologica Sinica,2016,36(4):483-493. |
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| Authors: | CAO Jianqiu and GUO Pinwen |
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| Institution: | Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, China;Liaoning Weather Modification Office, Shenyang 110166, China and Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | By using the conventional observation data during 2007-2013 in Jiangsu province, the climatic variation features of fog and haze days and the main meteorological elements characteristics of haze weather are preliminarily analyzed. Results show that:(1)the distribution of fog days was gradually decreasing from the east to the west while the haze days were gradually decreasing from north to south in Jiangsu. (2)In interdecadal variation, the fog days has a fluctuation trend and the haze days increased yearly. The fog days occurred more in autumn and winter while the haze days occurred least in summer. Fog and haze weather are mostly happened at 08:00 and 14:00 in a day. (3)Moderate haze weather happened mostly in Huaian. When the wind speed is less than 3 m·s-1 and the humidity remains between 50% and 60%, the haze weather occured most. (4) A positive linear correlation existed between wind speed and visibility, which shows remarkable correlation in autumn and winter. A negative linear correlation between relative humidity and visibility was found in spring and winter but nonlinear correlation in the fitting curve of summer and autumn. |
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| Keywords: | Fog Haze Climatic characteristics |
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