Plateau Meteorology

Plateau Meteorology >

2016 , Vol. 35 >Issue 1: 86 - 93

DOI: https://doi.org/10.7522/j.issn.1000-0534.2014.00126

Relation between Heavy Precipitation Process and Atmospheric Low-Frequency Oscillation in the Eastern Part of Northwest China

  • LIU Yuanpu ,
  • SUN Guowu ,
  • FENG Jianying ,
  • LI Yaohui ,
  • WANG Zhilan
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  • Key Laboratory of Arid Climatic Changing and Reducing Disaster of Gansu Province, Key Laboratory of Arid Change and Disaster Reduction of CMA, Institute of Arid Meteorology, China Meteorological Administration, Lanzhou 730020, China

Received date: 2014-03-05

  Online published: 2016-02-28

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Abstract

The precipitation,wind,relative vorticity and OLR were filtered of 30~50 days period with Butterworth band-pass filter.Analyzed the low frequency characters of heavy precipitation and the relationship between heavy precipitation and atmospheric low-frequency in the eastern part of northwest China.The results indicated that the precipitation occurred from middle ten days of June to middle ten days of September,especially at the end of June July and August during May to September 2012.There was occurred about 30 days period oscillation at this precipitation period,and the heavy precipitation occurred at the positive phase of the low-frequency filtered curve.The heavy precipitation occurred at the diffuse period of southern low-frequency wind which followed the convergence of northern and southern low-frequency wind;it also occurred at the positive phase of 30~50 days oscillation relative vorticity;and also occurred at negative phase of convective activity which was the severe convection region.The heavy precipitation was formed from convective oscillation's negative phase diffused from southern and eastern to this region.Used atmospheric low-frequency approach to forecast heavy precipitation in the eastern part of northwest China.It showed that the forecast accuracy can reach to 67%,and the forecast effectiveness was 10-30 days in recent 4 years.It joined forecast time gap of weather and climate.

Key words： The eastern part of; Heavy precipitation; Atmospheric low-freq; Relative vorticity; OLR

Cite this article

LIU Yuanpu , SUN Guowu , FENG Jianying , LI Yaohui , WANG Zhilan . Relation between Heavy Precipitation Process and Atmospheric Low-Frequency Oscillation in the Eastern Part of Northwest China[J]. Plateau Meteorology, 2016 , 35(1) : 86 -93 . DOI: 10.7522/j.issn.1000-0534.2014.00126

References

[1]Jones C,Carvalho M V,Higgins R W,et al.2004.A statistical forecast model of tropical intraseasonal convective anomalies[J].J Climate,17(11):2078-2094.
[2]Wheeler M C,Hendon H H.2004.An all-season real-time multivariate MJO index:Development of an index for monitoring and prediction[J].Mon Wea Rev,132(8):1971-1932.
[3]陈伯民,信飞,沈愈,等.2013.月内重要天气过程与气候趋势预测系统及应用进展[J].气象科技进展,3(1):46-51.Chen Bomin,Xin Fei,Shen Yu,et al.2013.Monthly anomaly and weather process forecast system and its application[J].Adv Meteor Sci Technol,3(1):46-51.
[4]陈光华,黄荣辉.2009.西北太平洋低频振荡对热带气旋生成的动力作用及其物理机制[J].大气科学,33(2):205-214.Chen Guanghua,Huang Ronghui.2009.Dynamical effects of low frequency oscillation on tropical cyclogenesis over the western North Pacific and the physical mechanisms[J].Chinese J Atmos Sci,33(2):205-214.
[5]陈海山,朱月佳,刘蕾.2013.长江中下游地区冬季极端降水事件与天气尺度瞬变波活动的可能联系[J].大气科学,37(4):801-814.Chen Haishan,Zhu Yuejia,Liu Lei,2013.Relationship of synoptic-scale transient eddies and extreme winter precipitation events in the middle and lower reaches of the Yangtze River[J].Chinese J Atmos Sci,37(4):801-814.
[6]冯建英,王芝兰,柳媛普,等,2014.延伸期干旱、沙尘暴过程低频方法预报系统简介[J].干旱气象,32(5):851-856.Feng Jianying,Wang Zhilan,Liu Yuanpu,et al.2014.Drought and dust storm process extended-range forecast system based on low-frequency method and its application[J].J Arid Meteor,32(5):851-856.
[7]何金海,Murakami T,Nakazawa T.1985.1979年夏季40~50天周期振荡的空间结构及其位相传播[J].南京气象学院学报,1:56-64.He Jinhai,Murakami T,Nakazawa T.1985.The spatial structure of 40~50 day oscillation and their phase propagation during the summer of 1979[J].J Nanjing Insti Meteor,1:56-64.
[8]何金海,陈丽臻.1988.南北半球环流的准40天振荡与夏季风降水预报的可能途径[J].低纬高原天气,(1):38-49.He Jinhai,Chen Lizhen.1988.Possible ways of southern and Northern Hemisphere circulation of the quasi 40 days oscillation and the summer monsoon precipitation forecast[J].Low Latitude Plateau Weather,(1):38-49.
[9]贺懿华,李才媛,金琪,等.2006.夏季青藏高原TBB低频振荡及其与华中地区旱涝的关系[J].高原气象,25(4):658-664.He Yihua,Li Caiyuan,Jin Qi,et al.2006.Relationship between the low frequency oscillation of TBB in summer of Qinghai-Xizang plateau and drought/flood in central China[J].Plateau Meteor,25(4):658-664.
[10]胡春丽,李辑,陈伯民,等,2013.低频天气图方法在辽宁夏季延伸期强降水预报中的应用[J].气象科技进展,3(1):64-67.Hu Chunli,Li Ji,Chen Bomin,et al.2013.Precipitation forecast from 10~20 days by the method of the low-frequency synoptic weather map in Liaoning Province[J].Adv Meteor Sci Tech,3(1):64-67.
[11]蒋薇,孙国武,陈伯民,等.2011.江苏省汛期强降水过程的延伸期预报试验[J].气象科学,31(增刊1):24-30.Jiang Wei,Sun Guowu,Chen Bomin,et al.2011.A range-extended forecast experiment for severe rainstorm process of Jiangsu in flood season[J].J Meteor Sci,31(supp1):24-30.
[12]琚建华,赵而旭.2005.东亚夏季风区的低频振荡对长江中下游旱涝的影响[J].热带气象学报,21(2):163-171.Ju Jianhua,Zhao Erxu.2005.Impacts of the low frequency oscillation in East Asian summer monsoon on the drought and flood in the middle and lower valley of the Yangtze River[J].J Trop Meteor,21(2):163-171.
[13]李崇银,武培立,张勤.1990a.北半球大气环流30~60天振荡的一些特征[J].中国科学(B辑),(7):764-774.Li Chongyin,Wu Peili,Zhang Qin.1990a.Some characteristics of 30~60 day oscillation in the northern hemisphere atmospheric circulation[J].Science in China(Series B),(7):764-774.
[14]李崇银.1990b.大气中的季节内振荡[J].大气科学,14(1):32-45.Li Chongyin.1990b.Atmospheric intraseasonal oscillation[J].Chinese J Atmos Sci,14(1):32-45.
[15]钱维宏,江漫,单晓龙.2013.大气变量物理分解原理及其在区域暴雨分析中的应用[J].气象,39(5):537-542.Qian Weihong,Jiang Man,Shan Xiaolong.2013.The physical decomposition principles on atmospheric variables and their application in the analysis of regional rainstorms[J].Meteor Mon,39(5):537-542.
[16]钱维宏.2012.瞬变涡扰动法在极端天气事件预报中的应用[J].气象科技进展,2(5):44-48.Qian Weihong.2012.Transient eddy method and its application on the forecast of extreme weather events[J].Adv Meteor Sci Tech,2(5):44-48.
[17]孙国武,陈葆德.1988.青藏高原上空大气低频波的振荡及其经向传播[J].大气科学,12(3):250-256.Sun Guowu,Chen Bode.1988.Oscillation characteristics and meridional propagation of atmosphere low frequency waves over Qinghai-Xizang Plateau[J].Chinese J Atmos Sic,12(3):250-256.
[18]孙国武,陈葆德,刘晓东.1992.青藏高原大气低频振荡与黄河上游水量丰枯的关系[J].高原气象,11(1):107-112.Sun Guowu,Chen Bode,Liu Xiaodong.1992.Relationship between the Tibetan plateau atmospheric low-frequency oscillation and the Yellow River upstream water runoff[J].Plateau Meteor,11(1):107-112.
[19]孙国武,孔春燕,信飞,等.2011.天气关键区大气低频波延伸期预报方法[J].高原气象,30(3):594-599.Sun Guowu,Kong Chunyan,Xin Fei,et al.2011.Method of extended range forecast atmospheric low-frequency wave in key region[J].Plateau Meteor,30(3):594-599.
[20]孙国武,信飞,陈伯民,等.2008.低频天气图预报方法[J].高原气象,27(增刊1):64-68.Sun Guowu,Xin Fei,Chen Bomin,et al.2008.A predicting method on the low-frequency synoptic weather map[J].Plateau Meteor,27(supp1):64-68.
[21]孙国武,信飞,孔春燕,等.2010.大气低频振荡与延伸期预报[J].高原气象,29(5):1142-1147.Sun Guowu,Xin Fei,Kong Chunyan,et al.2010.Atmospheric low-frequency oscillation and extended range forecast[J].Plateau Meteor,29(5):1142-1147.
[22]孙长,毛江玉,吴国雄.2009.大气季节内振荡对夏季西北太平洋热带气旋群发性的影响[J].大气科学,33(5):950-958.Sun Zhang,Mao Jiangyu,Wu Guoxiong.2009.Influences of intraseasonal oscillation on the clustering of tropical cyclone activities over the western North Pacific during boreal summer[J].Chinese J Atmos Sci,33(5):950-958.
[23]万超,范广洲,华维,等.2015.青藏高原夏季风和南海夏季风低频振荡的关系[J].高原气象,34(2):318-326.Wan Chao,Fan Guangzhou,Hua Wei,et al.2015.Study on relationship of low frequency oscillation between summer monsoon in Qinghai-Xizang Plateau and summer monsoon in South China Sea[J].Plateau Meteor,34(2):318-326.DOI:10.7522/j.issn.1000-0534.2014.00020.
[24]韦晋,朱伟军.2006.天气尺度瞬变波滤波方案比较分析[J].南京气象学院学报,29(4):549-554.Wei Jin,Zhu Weijun.2006.Comparison of two filtering ways for synoptic scale transient waves[J].J Nanjing Insti Meteor,29(4):549-554.
[25]魏晓雯,梁萍,何金海,等.2015.汛期强降水过程与月内低频降水的联系及其可能机制[J].高原气象,34(3):722-731.Wei Xiaowen,Liang Ping,He Jinhai,et al.2015.Relationship between heavy rainfall process and intramonthly low-frequency rainfall in flood period and their possible mechanism[J].Plateau Meteor,34(3):722-731.DOI:10.7522/j.issn.1000-0534.2013.00184.
[26]信飞,孙国武,陈伯民.2008.自回归统计模型在延伸期预报中的应用[J].高原气象,27(增刊1):69-74.Xin Fei,Sun Guowu,Chen Bomin.2008.An autoregressive statistical model for extended-range prediction[J].Plateau Meteor,27(supp1):69-74.
[27]张菡,巩远发,郑昊,等.2009.江淮流域旱涝年夏季降水与东亚季风区低频OLR的变化特征[J].气象科学,29(2):165-172.Zhang Han,Gong Yuanfa,Zheng Hao,et al.2009.Variation characteristics of OLR LFO in monsoon region of East Asia and its relationship with precipitation of the Yangtze-Huai river[J].J Meteor Sci,29(2):165-172.
[28]张鹏飞,李国平,王旻燕,等.2010.青藏高原低涡群发性与10~30天大气低频振荡关系的初步研究[J].高原气象,29(5):1102-1110.Zhang Pengfei,Li Guoping,Wang Minyan,et al.2010.Preliminary study on relationship between clustering activity of Tibetan plateau vortex and 10~30 days low-frequency oscillation[J].Plateau Meteor,29(5):1102-1110.
[29]章基嘉,孙国武,陈葆德.1991.青藏高原大气低频变化的研究[M].北京:气象出版社,105-106.Zhang Jiaji,Sun Guowu,Chen Bode.1991.Study atmospheric low-frequency variability in Qinghai-Tibet Plateau[M].Beijing:China Meteorological Press,105-106.
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