| Weather and Climate |
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| Characteristics of Dust Storm Weather in Northern China |
| LU Yan-li1,2,3,4, LIU Lian-you1,2,4, QU Zhi-qiang2,4,5, HU Xia2,4 |
1.State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China;
2.Ministry of Education Key Laboratory of Environmental Change and Natural Disaster, Beijing Normal University, Beijing 100875, China;
3.Department of Physics, Beijing Normal University, Beijing 100875, China;
4.Academy of Disaster Reduction and Emergency Management, Beijing Normal University, Beijing 100875, China;
5.College of Life Sciences, Beijing Normal University, Beijing 100875, China |
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Abstract API(Air Pollution Index), wind speed, wind direction and other meteorological data during two dust storm events from 376 meteorological stations were studied to investigate characteristics of dust storm weather in northern China. Daily maximum instantaneous wind speed at 88% meteorological stations in northern China was more than 7.2 m·s-1 during the two dust storm events. Daily maximum instantaneous wind speed at 31 meteorological stations was more than 17.2 m·s-1 and the highest frequency of wind direction was WNW on April 27, 2005. Daily maximum instantaneous wind speed at 81 meteorological stations was more than 17.2 m·s-1 and the highest frequency of wind direction was N on April 28, 2005. Areas with daily maximum instantaneous wind speed more than 17.2 m·s-1 moved quickly from middle-east Inner Mongolia to northeast China. The daily maximum instantaneous wind speed was more than 17.2 m·s-1 at 57 meteorological stations on March 30, 2007 and at 68 meteorological stations on March 31, 2007, and the highest frequency of wind direction was WNW on the two days. The distribution of areas with daily maximum instantaneous wind speed not less than 17.2 m·s-1 was relatively stable on the two days. API increased quickly in dust influenced areas. On April 28, 2005 API in Hohhot, Datong and Beijing was 418, 500, and 500, respectively. On March 31, 2007 API in Hohhot, Chifeng and Datong was 500, 500, and 423, respectively. A significant positive correlation existed between the mass concentration of PM10 and wind speed during the two dust storm events.
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Received: 31 July 2011
Published: 20 March 2012
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| [1]Duce R A,Unni C K,Ray B J,et al.Long-range atmospheric transport of soil dust from Asia to the tropical north Pacific:Temporal variability[J].Science,1980,209:1522-1524.[2]邱新法,曾燕,缪启龙.我国沙尘暴的时空分布规律及其源地和移动路径[J].地理学报,2001,56(3):316-322.[3]Sun J M. Provenance of loess material and formation of loess deposits on the Chinese Loess Plateau[J].Earth and Planetary Science Letters,2002,203:845-859.[4]Chun Y,Kim J,Choi J,et al.Characteristic number size distribution of aerosol during Asian dust period in Korea[J].Atmospheric Environment,2001,35:2715-2721.[5]Sugimoto N,Uno I,Nishikawa M,et al.Record heavy Asian dust in Beijing in 2002: observations and model analysis of recent events[J].Geophysical Research Letters,2003,30,1640.[6]Dan J,Snow J,Cooper O.The 2001 Asian dust events: transport and impact on surface aerosol concentrations in the U.S.[J].Eos,2003,84(46):501-507.[7]Zhao T L,Gong S L,Zhang X Y,et al.Asian dust storm influence on North American ambient PM levels: observational evidence and controlling factors[J].Atmospheric Chemistry and Physics Discussions,2007,7:9663-9686.[8]Kurosaki Y,Mikami M.Recent frequent dust events and their relation to surface wind in East Asia[J].Geophysical Research Letters,2003,30:1736.[9]钟海玲,高荣,李栋梁.地面风速的气候特征及其对沙尘暴的影响研究[J].中国沙漠,2009,29(2):321-326.[10]孙然好,刘清丽,陈利顶,等.河西走廊沙尘暴及其影响因子的多尺度研究[J].中国沙漠,2010,30(3):648-653.[11]Schwikowski M,Seibert P,Baltensperger U,et al.A study of an outstanding Saharan dust event at the high-alpine site Jungfraujoch,Switzerland[J].Atmospheric Environment,1995,29:1829-1842.[12]张加云,刘晓东.一次强沙尘暴活动对中国城市空气质量的影响[J].中国沙漠,2008,28(1):161-169.[13]Xie S D,Zhang Y H,Qi L,et al.Characteristics of air pollution in Beijing during sand-dust storm periods[J].Water,Air,and Soil Pollution: Focus,2005,5(3-6):217-229.[14]Hartog J J,Gerard H,Aadu M,et al.Relationship between different size classes of particulate matter and meteorology in three European cities[J].Journal of Environment Monitoring,2005,7(4):302-310.[15]娜仁花,高润宏,张明铁,等.沙尘暴生态效应与防治的探讨[J].中国沙漠,2007,27(1):110-116.[16]康玲,孙鑫,侯婷,等.内蒙古地区沙尘暴的分布特征[J].中国沙漠,2010,30(2):400-406.[17]Kim K H,Kim M Y.The effects of Asian Dust on particulate matter fractionation in Seoul,Korea during spring 2001[J].Chemosphere,2003,51:707-721.[18]Kim K H,Kim M Y,Hong S M,et al.The effects of wind speed on the relative relationships between different sized-fractions of airborne particles[J].Chemosphere,2005,59:929-937. |
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2012, Vol. 32 
