Characteristic Analysis on Two Regional Rainstorms at Guanzhong in Early Summer

  • ZHANG Yabin ,
  • MA Xiaohua ,
  • RAN Lingkun ,
  • HOU Jianzhong
Expand
  • Xi'an Meteorological Observatory of Shaanxi Province, Xi'an 710016, China;2. Shaanxi Meteorological Observatory, Xi'an 710014, China;3. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China

Received date: 2014-09-02

  Online published: 2016-06-28

Abstract

NCEP 1°×1° reanalysis data,conventional observation data and satelite data are used to analyse characteristics of circulation pattern,physical field and Temperature of Black Body(TBB)for two early summer rainstorms at Guanzhong from 2 to 3 June 2006(the‘0602')and on 25 May 2013(the‘0525’)with midsummer case comparison.Results show that:before early summer rainstorms happen,Tibetan High is weak and located obviously southward,which cause morphology and location changes of 200 hPa Jet north to rainstorm are small.At the same time,wind longitudinal gradient at the south side of 200 hPa Jet increases significantly.During early summer rainstorm there are no impacts of West Pacific Subtropical High and remote typhoon,meanwhile,westerlies influence systems at upstream and surrounding area are different,which lead to vapor transportation and convergence at low levels are significantly weaker than midsummer cases and different distributions.Stability of high pressure around China eastern continent on 850 hPa is contributed to duration of southeast vapor transportation to rainstorm area.Early summer rainstorms happened under potential stable stratification and warm and moist air climbe northward along the low level cold air.Isentropic surface tilted northward with height increasing along rainstorm centre and it exist energy front genesis and symmetric instability.Moist Potential Vorticity (MPV)anomaly appear over rainstorm area.Meanwhile,vertical difference between deeply positive MPV at mid-high levels and shallowly negative at low level increases.MPV above 300 hPa increase significantly.Zonal vertical circulations about 300 km east to early summer rainstorms contribute to upward movement maintaining.The maximum of vertical velocity,central height and unstable energy near high energy ridge at low level during early summer rainstorms are obviously lower than midsummer cases.Total helicity significantly increased zone is indicative to early summer rainstorm beginning.Zero line between positive and negative helicity area is near the north boundary of early summer heavy rain,meanwhile,positive helicity increasing center is near the north boundary of rainstorm.There is a significant negative helicity area north to Guanzhong.Positive helicity range and strength near Guanzhong are obvious small and its center moving and increase area are relatively south with midsummer case comparison.Meanwhile,locations of positive helicity centers in vertical direction are relatively dispersive.Early summer rainstorm clouds are large and have complex structure,which mainly composed of northern shield shaped cloud corresponding significant anticyclonic region at high level and southern belt cloud region at low level.TBB centers are higher than -60 ℃ and cloud top are lower than those of midsummer cases.Early summer rainstorm mainly located near the convergence area of north and south clouds and strong belt echo rather than TBB central or large gradient areas.

Cite this article

ZHANG Yabin , MA Xiaohua , RAN Lingkun , HOU Jianzhong . Characteristic Analysis on Two Regional Rainstorms at Guanzhong in Early Summer[J]. Plateau Meteorology, 2016 , 35(3) : 708 -725 . DOI: 10.7522/j.issn.1000-0534.2015.00014

References

[1]白涛,李崇银,王铁,等.2013.干侵入对陕西“2008.07.27”暴雨过程的影响分析[J].高原气象,32(2):345-356.Bai tao,Li Chongyin,Wang Tie,et al.2013.Analysis of influence of dry intrusion on rainstorm on 21 July 2008 in Shaanxi Province[J].Plateau Meteor,32(2):345-356.DOI:10.7522/j.issn.1000-0534.2012.00034.
[2]毕宝贵,刘月魏,李泽椿.2004.2002年6月8-9日陕南大暴雨系统的中尺度分析[J].大气科学,28(5):747-760.Bi Baogui,Liu Yuewei,Li Zechun.2004.Mesoscale system analysis of extremely heavy rainfall in the Southern Part of Shaanxi Province during 8 and 9 June 2002[J].Chinese J Atmos Sci,28(5):747-760.
[3]陈红专,叶成志,唐明晖,等.2013.2011年6月湖南两次暴雨过程的中尺度特征对比分析[J].气象,39(12):1580-1590.Chen Hongzhuan,Ye Chengzhi,Tang Minghui,et al.2013.Comparative analysis on mesoscale characteristics of two rainstorm processes in Hunan Province in June 2011[J].Meteor Mon,39(12):1580-1590.
[4]丛春华,陈联寿,雷小途,等.2012.热带气旋远距离暴雨的研究[J].气象学报,70(4):717-727.Cong Chunhua,Chen Lianshou,Lei Xiaotu,et al.2012.The influence of global warming and extreme events on the correlation of the global temperature field[J].Acta Meteor Sinca,70(4):717-727.
[5]杜小玲,杨静,彭芳,等.2013.贵州望谟初夏暴雨环境场和物理量场合成分析[J].高原气象,32(5):1400-1413.Du Xiaoling,Yang Jing,Peng Fang,et al.2013.Synthetic analyses on environmental and physical field of rainstorm in early summer in Wangmo,Guizhou[J].Plateau Meteor,32(5):1400-1413.DOI:10.7522/j.issn.1000-0534.2012.00131.
[6]段海霞,李耀辉,张强,等.2011.西北区域几次暴雨过程中的自组织现象[J].高原气象,30(1):890-900.Duan Haixia,Li Yaohui,Zhang Qiang,et al.2011.Phenomenon of vortex self-organization of several rainstorm processes in Northwest Region[J].Plateau Meteor,30(1):890-900.
[7]高守亭,雷霆,周玉淑,等.2002.强暴雨系统中湿位涡异常的诊断分析[J].应用气象学报,13(6):662-458.Gao shoutingShouting,Lei Ting,Zhou Yushu,et al.2002.Diagnostic analysis of moist potential vorticity anomaly in torrential rain systems[J].Quart J Appl Meteor,13(6):662-458.
[8]郭大梅,许新田,刘勇,等.2008.陕西中南部一次突发性大暴雨过程分析[J].气象,34(9):40-46.Guo Damei,Xu Xintian,Liu Yong,et al.2008.Analysis on process of an abrupt rainstorm in Central and Southern Shaanxi[J].Meteor Mon,34(9):40-46.
[9]侯建忠,梁生俊.2007.陕西初夏一次突发性暴雨过程的预报偏差分析[J].陕西气象,(3):9-12.Hou Jianzhong,Liang Shengjun.2007.Prediction error analysis of a sudden rainstorm process in early summer in Shanxi[J].J Shaanxi Meteor,(3):9-12.
[10]黄楚惠,李国平.2009.基于螺旋度和非地转湿Q矢量的一次东移高原低涡强降水过程分析[J].高原气象,28(2):319-325.Huang Chuhui,Li Guoping.2009.A case study of plateau vortex moving east ward with heavy rainfalls based on helicity and nongeostrophic wet Q-vector[J].Plateau Meteor,28(2):319-325.
[11]贾宏元,刘鹏兵,田风,等.2013.宁夏“12.7.29”大暴雨中尺度分析[J].天气预报,5(5):14-20.Jia Hongyuan,Liu Pengbin,Tian Feng,et al.2013.Mesoscale analysis of“12.7.29”heavy rain in Ningxia[J].Weather Forecast Review,5(5):14-20.
[12]井喜,高青云,杨静.2011.两个不同降雨量级的MCC对比分析[J].高原气象,30(2):328-337.Jing Xi,Gao Qingyun,Yang Jing.2011.Comparative analysis on MCC of two different precipitation magnitudes[J].Plateau Meteor,30(2):328-337.
[13]井喜,李栋梁,李明娟,等.2008.青藏高原东北侧一次突发性大暴雨环境场综合分析[J].高原气象,27(1):46-56.Jing Xi,Li Dongliang,Li Mingjuan,et al.2008.Synthetic analyses on environmental conditions of an abrupt heavy rainstorm on the northeast side of Tibetan Plateau[J].Plateau Meteor,27(1):46-56.
[14]李明,张涛,魏杰平.2009.2008年初夏孝感一次大暴雨天气过程的分析与诊断[J].暴雨灾害,28(1):51-57.Li Ming,Zhang Tao,Wei Jieping.2009.Diagnosis and analysis of a heavy rainstorm process in early summer of 2008 in Xiaogan[J].Torrential Rain Disasters,28(1):51-57.
[15]梁飞燕,黄帆,梁妙芝.2005.广西初夏4次大范围强降水过程对比分析[J].广西气象,26(增刊1):6-9.Liang Feiyan,Huang Fan,Liang Miaozhi.2005.Comparative analysis of four large scale precipitation processes in early summer of Guangxi[J].J Guangxi Meteor,26(Supp1):6-9.
[16]梁红丽,许美玲,吕爱民,等.2014.孟加拉湾风暴引发云南初夏强降水初探[J].高原气象,33(5):1240-1250.Liang Hongli,Xu Meiling,Lü Aimin,et al.2014.Preliminary study on heavy rainfall in Yunnan in early summer Initiated by Bengal Bay Storm[J].Plateau Meteor,33(5):1240-1250.
[17]梁生俊,马晓华.2012.西北地区东部两次典型大暴雨个例对比分析[J].气象,38(7):804-813.Liang Shengjun,Ma Xiaohua.2012.Comparative analysis of characteristics of two typical rainstorm cases in the East of Northwest China[J].Meteor Mon,38(7):804-813.
[18]梁生俊,王培,高守亭.2013.一次陕西初夏暴雨过程的数值模拟及诊断分析[J].气候与环境研究,18(1):12-22.Liang Shengjun,Wang Pei,Gao Shouting.2013.Numerical simulation and diagnostic analysis of rainstorm over Shaanxi Province during early summer[J].Climatic Environ Res,18(1):12-22.
[19]刘国忠,黄嘉宏,曾小团,等.2013.引发广西两次严重山洪地质灾害的暴雨过程分析[J].气象,39(11):1402-1412.Liu Guozhong,Huang Jiahong,Zeng Xiaotuan,et al.2013.Analysis on the heavy rainfall events triggering two severe mountain torrent geological hazards in Guangxi[J].Meteor Mon,39(11):1402-1412.
[20]刘冀彦,毛龙江,牛涛,等.2013.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,39(8):975-987.Liu Jiyan,Mao Longjiang,Niu Tao,et al.2013.Numerical simulation study on the impact of topographic forcing on the disaster rainstorm in West China in September 2011[J].Meteor Mon,39(8):975-987.
[21]刘勇,杜川利.2006.黄土高原一次突发性大暴雨过程的诊断分析[J].高原气象,25(2):302-307.Liu Yong,Du Chuanli.2006.Diagnostic study on an abrupt heavy rainstorm process in the Loess Plateau[J].Plateau Meteor,25(2):302-307.
[22]鲁亚斌,张腾飞,徐八林,等.2006.一次孟加拉湾风暴和冷空气影响下滇西大暴雨中尺度分析[J].应用气象学报,17(2):201-205.Lu Yabin,Zhang Tengfei,Xu Babin,et al.2006.Mesoscale analysis on a heavy rain associated with a Bengal Bay storm and cold air in West Yunnan[J].Quart J Appl Meteor,17(2):201-205.
[23]慕建利,李泽椿,谌芸,等.2014.一次陕西关中强暴雨中尺度系统特征分析[J].高原气象,33(1):148-161.Mu Jianli,Li Zechun,Chen Yun,et al.2014.Feature analyses of mesoscale convective system of a heavy rainfall in the central Shaanxi Plain [J].Plateau Meteor,33(1):148-161.DOI:10.7522/j.issn.1000-0534.2013.00049.
[24]慕建利,李泽椿,寿绍文,等.2009.高原东侧突发性大暴雨过程中螺旋度的诊断分析[J].气象科学,29(2):181-186.Mu Jianli,Li Zechun,Shou Shaowen,et al.2009.Diagnostic analysis of the helicity for a heavy rainfall in the east of Plateau[J].Scientia Meteor Sinica,29(2):181-186.
[25]潘杰丽,蔡木民.2010.一次初夏暴雨过程预报失误原因分析[J].气象研究与应用,31(增刊1):97-98.Pan Jieli,Cai Mumin.2010.An analysis on the failure cause of a rainstorm process in early summer[J].J Meteor Res Appl,31(supp1):97-98.
[26]乔林,陈涛,路秀娟.2009.黔西南一次中尺度暴雨的数值模拟诊断研究[J].大气科学,33(3):537-550.Qiao Lin,Chen Tao,Lu Xiujuan.2009.A numerical simulation analysis of a mesoscale rainstorm system in Southwest of Guizhou Province[J].Chinese J Atmos Sci,33(3):537-550.
[27]陶建玲,段桂兰,刘瑞芳.2007.陕西初夏两场区域性暴雨分析[J].陕西气象,(6):22-25.Tao Jianlin,Duan Guilan,Liu Ruifang.2007.Analysis of two regional rainstorms in early summer in Shaanxi[J].J Shanxi Meteor,(6):22-25.
[28]陶祖钰,周小刚,郑永光.2012.从涡度、位涡、到平流层干侵入—位涡问题的缘起、应用及其歧途[J].气象,38(1):28-40.Tao Zuyu,Zhou Xiaogang,Zheng Yongguang.2012.Vorticity,potential vorticity and stratospheric dry intrusion:origin,application and misuse of potential vorticity concept[J].Meteor Mon,38(1):28-40.
[29]武麦凤,王桂梅,曹玲玲,等.2014.台风“洛克”远距离引发陕西暴雨过程的成因分析[J].高原气象,33(5):1297-1304.Wu Maifeng,Wang Guimei,Cao Lingling,et al.2014.Analysis on rainstorm in Shaanxi distance caused by typhoon ‘Roke'[J].Plateau Meteor,33(5):1297-1304.DOI:10.7522/j.issn.1000-0534.2013.00072.
[30]张弘,梁生俊,侯建忠.2006.西安市两次突发性暴雨成因分析[J].气象,32(5):80-86.Zhang Hong,Liang Shengjun,Hou Jianzhong.2006.Analysis of causes of two abrupt rainstorm in Xi′an[J].Meteor Mon,32(5):80-86.
[31]张雅斌,武麦凤,侯建忠,等.2014.陕西4次台风远距离暴雨过程的水汽条件对比[J].干旱气象,32(5):788-797.Zhang Yabin,Wu Maifeng,Hou Jianzhong,et al.2014.Moisture comparative analysis on typhoon remote rainstorm prosesses in the eastern region of Northwest China[J].J Arid Meteor,32(5):788-797.
[32]郑峰,徐海明,丁一汇.2008.一次东风波及其诱生低涡的螺旋度特征分析[J].大气科学,39(8):975-987.Zheng Feng,Xu Haiming,Ding Yihui.2008.Characteristics of helicity variation during a low vortex event caused by easterly wave[J].Chinese J Atmos Sci,39(8):975-987.
[33]周明飞,杜小玲,熊伟.2014.贵州初夏两次暖区暴雨的对比[J].气象,40(2):186-195.Zhou Mingfei,Du Xiaoling,Xiong Wei.2014.Comparison analysis of two warm-area torrential rain systems in early summer in Guizhou[J].Meteor Mon,40(2):186-195.
Outlines

/