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气象:2016,42(7):819-826
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影响武汉市空气污染的地面环流形势及其与污染物浓度的关系
(1.南京信息工程大学大气科学学院,南京 210044 湖南省气象台,长沙 410118;2.南京信息工程大学大气科学学院,南京 210044 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,南京 210044 南京信息工程大学气象灾害省部共建教育部重点实验室,南京 210044;3.中国地质大学环境学院,武汉 430074 中国气象局乌鲁木齐沙漠气象研究所,乌鲁木齐 830002;4.南京信息工程大学大气科学学院,南京 210044)
Surface Atmospheric Circulation Types of Air Pollution and Its Relationship with Concentration of Air Pollutants in Wuhan
(1.School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044 Hunan Meteorological Observatory, Changsha 410118;2.School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044 Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University  of Information Science and Technology, Nanjing 210044 Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science  and Technology, Nanjing 210044;3.School of Environmental Studies, China University of Geosciences, Wuhan 430074 Institute of Desert Meteorology, CMA, Urumqi 830002;4.School of Atmospheric Sciences, Nanjing University of Information Science and Technology, Nanjing 210044)
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投稿时间:2015-04-01    修订日期:2016-01-03
中文摘要: 利用Lamb Jenkinson客观环流分型法,分析2004—2013年影响武汉地区的主要地面环流型及其特点,并探讨环流型与污染物浓度之间的关系。结果表明,影响武汉地区的主要地面环流型有反气旋型(A)、气旋型(C)、偏东风型(E)、高压系统控制的偏东风型(AE)、偏东北风型(NE)及东南风型(SE)。秋、冬季以A、AE、E型为主,春季A、C、E型出现频率最高,夏季则C、E型出现次数最多。空气污染日出现的主要地面环流型有A、AE、E、SE、C 及NE型,影响各季节出现污染的主要环流型不同,其中C型主要出现在春、夏季,表现为被弱低压控制;而中度及以上污染日的地面环流型主要为A、SE、E及AE型,受高压系统或偏东风影响时,高浓度污染较易出现。环流型对各种污染物浓度的影响程度存在差异。
Abstract:Lamb Jenkinson atmospheric circulation classification scheme is used to classify daily circulation types. The major types, their catalogues and the relationship between the surface atmospheric circulation and the concentration of pollutants in Wuhan from 2004 to 2013, are explored. The results show that six major types (A, C, E, AE, NE and SE) occur most frequently, and the major types are A, AE and E in winter and autumn, A, C and E occur frequently in spring, C and E are the major types in summer. For air pollution days, major types are A, AE, E, SE, C and NE, and the major types that impact air pollution in different seasons are different. The Type C is mainly in spring and summer, being controlled by weak low pressure. The four major types (A, SE, E, AE) are relevant to severe air pollution in Wuhan. Severe air pollution occurs easily under the control of high pressure system or easterly. The impact of the circulation types on the concentration of air pollutants is different.
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基金项目:武汉市重大科技攻关专项“武汉市大气灰霾成因与来源研究”项目、江苏高校优势学科建设工程资助项目(PAPD)和江苏省“青蓝工程”(东亚季风与区域气候变化)共同资助
引用文本:
陈龙,智协飞,覃军,胡航菲,2016.影响武汉市空气污染的地面环流形势及其与污染物浓度的关系[J].气象,42(7):819-826.
CHEN Long,ZHI Xiefei,QIN Jun,HU Hangfei,2016.Surface Atmospheric Circulation Types of Air Pollution and Its Relationship with Concentration of Air Pollutants in Wuhan[J].Meteor Mon,42(7):819-826.