| 天气与气候 |
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| A Strong Sandstorm Produced by Mongolian Cyclone: A diagnostic analysis |
| ZHAO Jin-xia1, ZHAO Yu-jie1, XU Ling-zhi1, FAN Su-dan2 |
| 1.Tianjin Binhai New Area Meteorological Early Warning Center, Tianjin 300457, China; 2.Nanjing University of Information Science & Technology, Nanjing 210044, China |
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Abstract By the use of MICAPS data, FY-2C satellite infrared cloud images and 2.5°×2.5° NCEP reanalysis data, dynamics process and physical fields of a large-scale strong sandstorm on May 25—28, 2008 were analyzed. The results showed that the strong sandstorm occurred in dense temperature gradients area before cold advection and dense vorticity gradients area. The warm advection was important thermal factor of the Mongolian cyclone genesis and development during the process of the strong sandstorm, and unstable atmospheric thermal energy and strong winds were the driving forces of the strong sandstorm. The trigger factor for squall line was provided by rapid eastward moving of steps trough at 500 hPa, and convective storm was the main factor triggering the strong sandstorm. Gradients of pressure and temperature before and after the cold front were enlarged by development of the Mongolian cyclone, by which the unstable thermal energy condition was provided for the production of the strong sandstorm. Outbreak sink and southbound of cold advection at 700 hPa provided a powerful driving force for the production of the strong sandstorm.
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Received: 06 December 2010
Published: 20 September 2011
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[1]方宗义,朱福康,江吉喜,等.中国沙尘暴研究[M].北京:气象出版社,1997:1-10.
[2]王式功,杨德保,金炯,等.我国西北地区黑风暴的成因和对策[J].中国沙漠,1995,15(1):19-20.
[3]Jauregui E.The dust storms of Mexico City[J].International Journal of Climatology,1989,9(2):169-180.
[4]Bergam E G.Encyclopedia of Earth System Science[M].San Diego:Academic Press,1992:171-192.
[5]Ott S T,Ott A.Analysis of a Tram-Atlantic Saharan dust outbreak based on satellite and GATE data[J].Monthly Weather Review,1991,119(8):1832-1850.
[6]Gillette D A,Adams J,Endo A,et al.Threshold velocities for input of soil particles into the air by desert soils[J].Journal of Geophysical Research,1980,85(c10):5621-5630.
[7]Mitsuta Y,Hayashi T,Takemi T,et al.Two severe local storms as observed in the arid area of northwest China[J].Journal of the Meteorological Society of Japan,1995,73(6):1269-1284.
[8]Brazel A J,Nickling W G.The relationship of weather types to dust storm generation in Arizona[J].Journal of Climatology,1986,6(3):255-275.
[9]钱正安,宋敏红,李万元.近50年来中国北方沙尘暴的分布和变化趋势分析[J].中国沙漠,2002,22(2):106-111.
[10]钱正安,贺慧霞,瞿章,等.我国西北地区沙尘暴的分级标准和个例谱及其统计特征[M]//方宗义.中国沙尘暴研究.北京:气象出版社,1997:1-10.
[11]周自江,王锡稳,牛若芸.近47年中国沙尘暴和扬沙天气[J].中国沙漠,1999,19(4):354-358.
[12]刘景涛,郑明倩.内蒙古中西部强和特强沙尘暴的气候学特征[J].高原气象,2003,22(1):51.
[13]郑广芬,赵光平,姚宗国,等.北极涛动异常对西北地区东部沙尘暴频次的影响[J].中国沙漠,2009,29(3):551-557.
[14]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.
[15]王伏村,付有智,李红.一次秋季沙尘暴的诊断和天气雷达观测分析[J].中国沙漠,2008,28(1):170-177.
[16]柴东红,宋晓辉,李国翠,等.石家庄地区沙尘天气分析[J].中国沙漠,2008,28(2):377-380.
[17]王金艳,王式功,马艳,等.我国北方春季沙尘暴与气候因子之关系[J].中国沙漠,2007,27(2):296-300.
[18]许宝玉,钱正安,焦彦军.西北地区五次特强沙尘暴前期形势和要素场的综合分析与预报[M]//方宗义.中国沙尘暴研究.北京:气象出版社,1997:44-51.
[19]胡隐樵,田光宁.强沙尘暴发展与干飑线——黑风暴形成的一个机理分析[J].高原气象,1996,15(2):178-185.
[20]沈武.“99.9.4”突发性局地特大暴雨中尺度分析[J].气象,2000,26(11):34-39. |
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2011, Vol. 31 
