img

Wechat

  • CN 62-1070/P
  • ISSN 1000-694X
  • Bimonthly 1981
Adv search

Numerical Simulation of Terrain Effects of the Helan Mountain on A Rainstorm Process in Yinchuan, Ningxia, China

  • Ning Guicai ,
  • Shang Kezheng ,
  • Wang Shigong ,
  • Ma Minjin ,
  • Zhao Wenjing
Expand
  • Gansu Key Laboratory of Arid Climate Change and Reducing Disaster/College of Atmospheric Sciences, Lanzhou University, Lanzhou 730000, China

Received date: 2014-03-05

  Revised date: 2014-04-16

  Online published: 2015-03-20

Abstract

The Helan Mountain is an important boundary of arid region and semi-arid region in northwestern China, but it is not clear how the topography impacts on the process of some heavy precipitation yet. In this article, the rainstorm occurred in Yinchuan during July 29-30 of 2012 was simulated and terrain sensitivity experiment of the Helan Mountain was performed by mesoscale numerical model WRFV3.4. The results indicated that the Helan Mountain promotes and strengthens the generation of low-level around flow cyclonic, vertical motion, divergence and moisture flux divergence in Yinchuan area. The promotion and strength are an important cause to produce the rainstorm. Vertical motion, divergence and moisture flux divergence strengthen and low-level flow shear convergence appears in the east of the Tengger Desert to the west of the Helan Mountain after smoothing the Helan Mountain terrain, which enhances the precipitation and expands the scope of the precipitation in the Tengger Desert. It was concluded that some heavy precipitation events which happened in Yinchuan to the east of the Helan mountain was strengthened by the Helan Mountain, however it has an obvious adverse effect on the precipitation events which happened in the east of the Tengger Desert to the west of the mountain.

Cite this article

Ning Guicai , Shang Kezheng , Wang Shigong , Ma Minjin , Zhao Wenjing . Numerical Simulation of Terrain Effects of the Helan Mountain on A Rainstorm Process in Yinchuan, Ningxia, China[J]. Journal of Desert Research, 2015 , 35(2) : 464 -473 . DOI: 10.7522/j.issn.1000-694X.2014.00040

References

[1] 杨淑,赵光平,马力文,等.气候变暖对宁夏气候和极端天气事件的影响及防御对策[J].中国沙漠,2007,27(6):1072-1076.
[2] 纪晓玲,陈晓娟,邵建,等.干旱区一次锋面过境短时暴雨中尺度系统分析[J].中国沙漠,2012,32(6):1731-1737.
[3] 穆建华,纪晓玲,辛尧胜.宁夏一次大到暴雨过程成因分析[J].宁夏大学学报(自然科学版),2012,33(3):309-313.
[4] 肖云清,胡文东,赵立斌,等.宁夏中北部两次强暴雨过程综合对比分析[J].高原气象,2008,27(3):576-583.
[5] 纪晓玲,桑建人,马筛艳,等.贺兰山东麓宁夏一次极值暴雨过程分析[J].气象科学,2010,30(3):332-337.
[6] 肖云清,纪晓玲,苏银兰,等.宁夏地区“6.8”暴雨天气过程的可能物理成因[J].气象科学,2006,25(4):410-418.
[7] 胡文东,李艳春,郑广芬,等.宁夏干旱区强对流降水过程雷达图像纹理特征分析[J].中国沙漠,2007,27(2):331-336.
[8] 陈豫英,王秀文,陈楠,等.2008 年宁夏久旱转雨天气过程诊断分析[J].高原气象,2010,29(3):737-743.
[9] 梁生俊,马晓华.西北地区东部两次典型大暴雨个例对比分析[J].气象,2012,38(7):804-813.
[10] 何彩青,魏国才,韩有财.高原暖区一次强降水特征及预报偏差分析[J].青海气象,2012,(4):15-18.
[11] 杨莲梅,李霞,张广兴.新疆夏季强降雨研究若干进展及问题[J].气候与环境研究,2011,16(2):188-198.
[12] 李一平,韩经纬,祁伏裕,等.2012年7月下旬河套地区4次切变暴雨的对比分析[J].中国沙漠,2014,34(1):233-243.
[13] 朱乾根.暴雨维持和传播的机制分析[J].南京气象学院学报,1979,2(1):1-7.
[14] 谢金南,王文.中国西北夏季降水特征及其异常研究[J].大气科学,1997,21(3):331-340.
[15] 李栋梁,姚辉.中国西北夏季降水量与500 hPa纬偏场的特征分析[J].气象,1995,21(11):22-26.
[16] 赵庆云,张武,王式功,等.西北地区东部干旱半干旱区极端降水事件的变化[J].中国沙漠,2006,25(6):904-909.
[17] 魏娜,巩远发,孙娴.西北地区近50 a降水变化及水汽输送特征[J].中国沙漠,2010,30(6):1450-1457.
[18] 杨青,姚俊强,赵勇,等.伊犁河流域水汽含量时空变化及其和降水量的关系[J].中国沙漠,2013,33(4):1174-1183.
[19] 李安泰,何宏让,张云.WRF模式陆面参数扰动对一次西北暴雨影响的数值模拟[J].高原气象,2012,31(1):65-76.
[20] 朱伟军,廖芷仪,何清,等.天山暴雨数值模拟的试验研究[J].中国沙漠,2012,32(4):1102-1109.
[21] 马玉芬,赵玲,赵勇.一次强天气过程天山地形方案的敏感性试验研究[J].中国沙漠,2012,32(4):1127-1134.
[22] Reed R J.Destructive winds caused by an orographically induced mesoscale cyclone[J].Bulletin of the American Meteorological Society,1980,61(11):1346-1355.
[23] Rudari R,Entekhabi D,Roth G.Terrain and multiple-scale interactions as factors in generating extreme precipitation events[J].Journal of Hydrometeorology,2004,5(3):390-404.
[24] Barros A P,Kuligowski R J.Orographic effects during a severe wintertime rainstorm in the Appalachian Mountains[J].Monthly Weather Review,1998,126(10):2648-2672.
[25] 刘冀彦,毛龙江,牛涛,等.地形对2011年9月华西致灾暴雨强迫作用的数值模拟研究[J].气象,2013,39(8):975-987.
[26] 赵玉春,许小峰,崔春光.中尺度地形对梅雨锋暴雨影响的个例研究[J].高原气象,2012,31(5):1268-1282.
[27] 郭蕊,苗春生,张楠等.一次淮河流域梅雨锋暴雨的大别山地形敏感性试验[J].大气科学学报,2013,36(5):626-634.
[28] 何光碧,屠妮妮,张利红,等.青藏高原东侧一次低涡暴雨过程地形影响的数值试验[J].高原气象,2013,32(6):1546-1556.
[29] 刘裕禄,黄勇.黄山山脉地形对暴雨降水增幅条件研究[J].高原气象,2013,32(2):608-615.
Outlines

/