Based on the NCEP reanalyzed daily data, the observation data of the meteorological stations and sandstorm monitoring stations in Inner Mongolia, a snow and dust weather process on February 21, 2015was analyzed in the Yinshan Mountains in Inner Mongolia. The results indicated that the process is affected by the strong cold air and the rapidly increased Mongolia cold vortex. There were snow in the cold front area and snowstorm in the large wind zone. The sandstorm weather occurred, as the wind speed strengthened in the secondary cold front area. There were some differences between the snowstorm and sandstorm in this process. (1) The same affecting systems were the cold vortex and cold front, the snowstorm appeared in the front and warm front area, but the sandstorm was controlled by the strong cold advection in the rear of the front. (2) The relative humidity was more than 70% in the snowstorm process and the relative humidity was less than 30% in the sandstorm process. (3) The unstable stratification was more important in the sandstorm process than in the snowstorm process. (4) The air temperature suddenly dropped in the snowstorm process, but there was a gentle, but steady, downward slide in the sandstorm process.
Meng Xuefeng
,
Sun Yonggang
,
Zhong Xia
,
Xun Xueyi
. A Snow and Dust Weather Process in Inner Mongolia on February 21, 2015[J]. Journal of Desert Research, 2016
, 36(1)
: 239
-246
.
DOI: 10.7522/j.issn.1000-694X.2015.00122
[1] 张强,卫国安,侯平.初夏敦煌戈壁大气边界层结构特征的一次观测研究[J].高原气象,2004,23(5):587-592.
[2] 岳平,牛生杰,张强,等.春季晴日蒙古高原半干旱荒漠草原地边界层结构的一次观测研究[J].高原气象,2008,27(4):757-763.
[3] Gamo M.Thickness of dry convection and large-scale subsidence above deserts[J].Boundary Layer Meteorology,1996,79:265-278.
[4] 叶笃正,丑纪范,刘纪远.关于我国华北地区沙尘天气的成因与治理对策[J].地理学报,2000,55(5):513-521.
[5] 周秀骥,徐祥德,颜鹏.2000年春季沙尘暴动力学特征[J].中国科学:D辑,2002,32(4):327-334.
[6] 钱正安,宋敏红,李万元.近50年中国北方沙尘暴的分布及变化趋势分析[J].中国沙漠,2002,22(2):106-111.
[7] 刘晓英,周鹏,张泽秀,等.河北省坝上地区1971-2010年沙尘暴日数变化特征及与气象因素关系[J].中国沙漠,2014,34(4):1109-1114.
[8] 柳丹,张武,陈艳,等.基于卫星遥感的中国西北地区沙尘天气发生机理及传输路径分析[J].中国沙漠,2014,34(6):1605-1616.
[9] 段海霞,郭铌,霍文,等.GRAPES-SDM沙尘模式预报与卫星遥感监测结果对比[J].中国沙漠,2014,34(6):1617-1623.
[10] 刘生元,王金艳,王式功,等.春季东亚副热带西风急流的变化特征及其与中国沙尘天气的关系[J].中国沙漠,2015,35(2):431-437.
[11] 王式功,扬德保,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):19-30.
[12] 钱正安,蔡英,刘景涛.中国北方沙尘暴研究若干进展[J].干旱区资源与环境,2004,18(s1):1-7.
[13] 姜学恭,沈建国.内蒙古两类持续型沙尘暴的天气特征[J].气候与环境研究,2006,11(6):702-711.
[14] 孙永刚,孟雪峰,赵毅勇,等.内蒙古一次强沙尘暴过程综合观测分析[J].气候与环境研究,2011,16(6):742-752.
[15] 沈洁,李耀辉,胡田田,等.一次特强沙尘暴成因及近地面要素脉动特征[J].中国沙漠,2014,34(2):507-517.
[16] 胡泽勇,黄荣辉,卫国安.2002,2000 年6月4日沙尘暴过程过境时敦煌地面气象要素及地表能量平衡特征变化[J].大气科学,2002,26(1):1-8.
[17] 王伏村,许东蓓,王宝鉴,等.河西走廊一次特强沙尘暴的热力动力特征分析[J].气象,2012,38(8):56-65.
[18] 胡隐樵,奇跃进,杨选利.河西戈壁(化音) 小气候和热量平衡特征的初步分析[J].高原气象,1990,9(2):113-119.
[19] 宫德吉.内蒙古的暴风雪灾害及其形成过程的研究[J].气象,2001,27(8):19-24.
[20] 孙永刚,孟雪峰,孙鑫,等.内蒙古暴风雪天气成因分析[J].兰州大学学报:自然科学版,2012,48(5):46-53.
[21] 孟雪峰,孙永刚,姜艳丰,等.内蒙古东北部一次致灾大到暴雪天气分析[J].气象,2012,38(7):877-883.
[22] 宫德吉,李彰俊.内蒙古大(暴)雪与白灾的气候学特征[J].气象,1998,26(12):24-28.
[23] 李彰俊,郭瑞清,吴学宏."雪尘暴"灾情形成的多因素灰色关联分析——以2001年初锡林郭勒草原牧区特大"雪尘暴"为例[J].自然灾害学报,2005,14(5):35-41.
[24] 姜学恭,李彰俊,康玲,等.北方一次强降雪过程的中尺度数值模拟[J].高原气象,2006,25(3):476-483.
[25] 王文,程麟生."96.1"高原暴雪过程横波型不稳定的数值研究[J].应用气象学报,2000,11(4):392-399.
[26] 王文,刘建军,李栋梁,等.一次高原强降雪过程三维对称不稳定数值模拟研究[J].高原气象,2002,21(2):132-138.
