| 天气与气候 |
|
|
|
|
| Application of Potential Vortex and Q Vector in Dust Storm Weather Forecasting in Mu Us Desert |
JING Xi1, TU Ni-ni2, JING Yu3
|
| 1.Shaanxi Yulin Meteorological Bureau, Yulin 719000, Shanxi, China; 2.Chengdu Plateau Meteorological Institute of China Meteorological Administration, Chengdu 610071, China; 3.Liaoning Provincial Meteorological Bureau, Shenyang 110001, China |
|
|
|
Abstract Based on the routine synoptic chart,satellite nephogram, wet potential vortex and Q vector and some other data, comprehensive analysis for the two cases of dust storms happened on April 30, 2007 and May 2, 2007 respectively over Mu Us Desert are presented in the paper. The results show: the generation of mesoscale convection instability in the low troposphere with MPV1 < 0 provides the instability energy for the generation of the dry convection; the dry intrusion and turbulence intrusion which come from the upstream area in the middle and high layers of troposphere play a very important role in the formation of the dust storm weather; sub-circulation triggered by the divergence and convergence of Q vector in the low troposphere provides the dynamic mechanism for the generation, development and maintenance of the dust storm weather. The effect of downward convection capable potential energy should be considered in the β scale dust storm forecasting and warning in Mu Us Desert.
|
|
Received: 08 June 2007
Published: 20 July 2008
|
|
|
[1]郭慧,王式功,李栋梁,等.甘肃春季（3—5月）沙尘暴成因分析[J].中国沙漠,2005,25（3）:412-416.
[2]张小玲,李青春,谢璞,等.近年来北京沙尘天气特征及成因分析[J].中国沙漠,2005,25（3）:417-421.
[3]杨晓玲,丁文魁,钱莉,等.一次区域性大风沙尘暴天气成因分析[J].中国沙漠,2005,25（5）:702-704.
[4]程海霞,丁治英,帅克杰.近5 a我国沙尘暴与高空急流关系的统计分析[J].中国沙漠,2005,25（6）:891-896.
[5]叶燕华,王平鲁.西北春季区域性沙尘暴天气MOS预报方法探讨[J].中国沙漠,2004,24（3）:355-359.
[6]雷向杰,李亚丽,王小宁,等.陕西强沙尘暴、特强沙尘暴天气气候特征[J].中国沙漠,2005,25（1）:118-122.
[7]钱正安.关于甘、宁部分地区“93.5.5”特强沙尘暴灾害的调查报告[J].大气情报,1993,30（4）:1-13.
[8]胡隐樵,光国宁.强沙尘暴微气象特征和局地触发机制[J].大气科学,1997,21（5）:581-589.
[9]李栋梁,王涛,钟海玲.中国北方沙尘暴气候成因及未来趋势预测[J].中国沙漠,2004,24（3）:376-379.
[10]马力文,赵光平,陈楠,等.宁夏盐池地区沙尘暴发生特征的统计分析[J].中国沙漠,2004,24（2）:218-222.
[11]郑新江,刘诚,崔小平,等.沙尘暴天气的云图特征[J].气象,1995,21（2）:27-31.
[12]王劲松,俞亚勋,赵建华.中国北方典型强沙尘暴的地面加热场特征分析[J].中国沙漠,2004,24（5）:599-602.
[13]康凤琴,李耀辉,吕世华.2001年4月8日强沙尘暴天气的数值模拟研究[J].中国沙漠,2003,23（6）:681-684.
[14]刘还珠,张绍晴. 湿位涡与锋面强降水天气的三维结构[J]. 应用气象学报,1996,7（3）:275-284.
[15]吴国雄,蔡雅萍,唐晓菁.湿位涡和倾斜涡度发展[J].气象学报,1995,53（4）:387-404.
[16]陆尔,丁一汇,李月洪. 1991年江淮特大暴雨的位涡分析与冷空气活动[J]. 应用气象学报,1994,6（3）:266-274
[17]井喜,胡春娟.位涡诊断在黄土高原强对流风暴预报中的应用[J].气象科技,2007,35（1）:20-25.
[18]李英,段旭,潘里娜.昆明准静止锋的准地转Q矢量分析[J].气象,1999,25（8）:6-10.
[19]省地气象台短期预报岗位培训教材[M].北京:气象出版社,1998:117-120. |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
2008, Vol. 28 
