Mainland China (MC) precipitation is mainly affected by the monsoon, therefore MC precipitation is few in wintertime (from November to next April). Southern Branch Trough (SBT) is one of the main weather system affected precipitation in MC in wintertime. An objective method was used to identify the SBT activity dataset from NCEP/NCAR reanalysis dataset from 1981 to 2013. Using the SBT dataset and daily precipitation percentage anomaly data of MC, the influence of SBT to MC precipitation was shown. The most significant influence on the precipitation area of SBT is the Qinghai-Xizang Plateau (QXP) and the Yunnan (YN) region, a significant increase in daily precipitation SBT activity days than the ones with no SBT activity. In Northeast China and Xinjiang regions, SBT shows opponent influence with QXP and YN. SBT position of QXP and YN's Top50 strong precipitation days showed that, when SBT's impact region lays in QXP, SBT more located near 80°E, and SBT less activities in the west of 75°E and east of 85°E; when SBT mainly produce heavy rainfall in YN, SBT mainly located in east of 90°E. SBT located at different positions, it emerged different precipitation distribution. SBT located in west of 80°E, precipitation areas are mainly located in western Xizang. SBT Located between 80°E and 90°E, precipitation areas are mainly located in central Tibet, central south Qinghai and northwest YN. SBT located in east of 90°E, precipitation areas are mainly located in the central QXP and eastern YN.
LIN Zhiqiang
. Influence of the Southern Branch Trough on Plateau of Southwestern China Daily Precipitation in Wintertime[J]. Plateau Meteorology, 2016
, 35(6)
: 1456
-1463
.
DOI: 10.7522/j.issn.1000-0534.2015.00091
[1]?Ding Yihui. 1992. Effects of the Qinghai-Xizang Plateau on the circulation features over the Plateau and its surrounding area[J]. Adv Atmos Sci,9(1):112-130.
[2]Herrera R G,David G P,Emiliano H M,et. al. 2001. Influence of the North Atlantic Oscillation on the Canary Islands Precipitation[J]. J Climate,14(2),3889-3903.
[3]Yeh T. 1950. The circulation of the high troposphere over China in winter of 1945-46[J]. Tellus,2(3):173-183.
[4]Yin M T. 1949. A synoptic-aerologic study of the onset of the summer monsoon over India and Burma[J]. J Meteor,6:393-400.
[5]Duan Xu,Tao Yun,Xu Meiling,et al. 2012. Influence of south branch trough of westerlies on weather of Yunnan Province[J]. Plateau Meteor,31(4):1059-1065.<br/>段旭,陶云,许美玲,等. 2012. 西风带南支槽对云南天气的影响[J]. 高原气象,31(4):1059-1065.
[6]Li Qiang. 2011.The influence of the flow around the south branch of the Qinghai-Tibet Plateau in wintertime on the precipitation in China and its mechanism[D]. Beijing:Chinese Academy of Meteorological Sciences.<br/>李强. 2011. 冬季青藏高原南支绕流对中国降水的影响及其变化机制[D]. 北京:中国气象科学研究院.
[7]Li Yanchun,Ye Wenqun,Lan Lan. 2011. The statistical analysis to the south conditioner which cause the torrential rain in Honghe Prefecture[J]. Yunnan Geographic Environment Research,23(2):85-89,104.<br/>李艳春,叶文群,兰兰. 2011. 南支槽造成红河州强降雨的统计分析[J]. 云南地理环境研究,23(2):85-89,104.
[8]Liang Xiaoyun,Liu Yimin,Wu Guoxiong. 2005. The impact of Qinghai-Xizang Plateau uplift on Asian general circulation in spring and summer[J]. Plateau Meteor,24(6):837-845.<br/>梁潇云,刘屹岷,吴国雄. 2005. 青藏高原隆升对春,夏季亚洲大气环流的影响[J]. 高原气象,24(6):837-845.
[9]Lin Zhiqiang,Jia La,Xue Gaiping,et al. 2014. Spatian-temporal distribution and general circulation of heavy snow over Tibet Plateau in 1980-2010[J]. Plateau Meteor,33(4):900-906. DOI:10.7522/j. issn. 1000-0534.2013.00069.<br/>林志强,假拉,薛改萍,等. 2014.1980-2010年西藏高原大到暴雪时空分布及环流特征分析[J]. 高原气象,33(4):900-906.
[10]Lin Zhiqiang. 2015. Objective identify method and climatic characteristics of southern branch trough[J]. Plateau Meteor,34(3):684-689. DOI:10.7522/j. issn. 1000-0534.2014.00016.<br/>林志强. 2015. 南支槽的客观识别方法及其气候特征[J]. 高原气象,34(3):684-689.
[11]Qin Jian,Ju Jianhua,Xie Ming'en,et al. 1997.Weather and cliamte in the low latitude plateau[M]. Beijing:Meteorological Press.<br/>秦剑,琚建华,解明恩,等. 1997. 低纬高原天气气候[M]. 北京:气象出版社.
[12]Qin Jian,Pan Lina,Shi Luping. 1991. Combined effect of southern branch trough and strong cold air in wintertime on weather of Yunnan Province[J]. Meteor Mon,17(3):39-43.<br/>秦剑,潘里娜,石鲁平. 1991. 南支槽与强冷空气结合对云南冬季天气的影响[J]. 气象,17(3):39-43.
[13]Suo Miaoqing,Ding Yihui. 2014. A case study on the effect of southern branch trough in the subtropical westerlies combined with storm over the Bay of Bengal on plateau snowstorm[J]. Meteor Mon,40(9):1033-1047.<br/>索渺清,丁一汇. 2014. 南支槽与孟加拉湾风暴结合对一次高原暴雪过程的影响[J]. 气象,40(9):1033-1047.
[14]Suo Miaoqing. 2008.Formation,propagation and evolution characteristics of wintertime southern branch trough in the subtropical westerlies and its impacts on the weather and climate in China[D]. Beijing:Chinese Academy of Meteorological Sciences.<br/>索渺清. 2008. 南支西风槽建立,传播和演变特征及其对中国天气气候的影响[D]. 北京:中国气象科学研究院.
[15]Wu Guoxiong. 2004. Recent progress in the study of the Qinghai-Xizang Plateau climate dynamics in China[J]. Quaternary Sciences,24(1):1-9.<br/>吴国雄. 2004. 我国青藏高原气候动力学研究的近期进展[J]. 第四纪研究,24(1):1-9.
[16]Xu Meiling,Duan Xu,Qi Minghui,et al. 2011.Handbook of weather forecasters in Yunnan[M]. Beijing:Meteorological Press.<br/>许美玲,段旭,杞明辉,等. 2011. 云南省天气预报员手册[M]. 北京:气象出版社.
[17]Yan Hongming,Xiao Ziniu,Zhang Xiaoling,et al. 2005. Numerical simulation of Mesoscale Convective System of southern branch trough heavy rainfall in Yunnan Region[J]. Plateau Meteor,24(5):672-684.<br/>晏红明,肖子牛,张小玲,等. 2005. 低纬高原地区南支槽强降水中尺度MCS系统的模拟与分析[J]. 高原气象,24(5):672-684.
[18]Ye Duzheng,Gu Zhengchao. 1995. Influence of Tibet Plateau on East Asian atmospheric circulation and weather in China[J]. Chinese Sci Bull,6(1):29-33.<br/>叶笃正,顾正潮. 1955. 西藏高原对东亚大气环流及中国天气的影响[J]. 科学通报,6(1):29-33.
[19]Zhang Tengfei,Lu Yabin,Zhang Jie,et al. 2006. Diagnostic analysis of a heavy snowstorm process in lower latitude plateau of China[J]. Plateau Meteor,25(4):697-703.<br/>张腾飞,鲁亚斌,张杰,等. 2006. 一次低纬高原地区大到暴雪天气过程的诊断分析[J]. 高原气象,25(4):697-703.
[20]Zhang Yongli,Fan Guangzhou,Zhou Dingwen,et al. 2014. Variation of springtime southern branch trough and its relationship with precipitation and atmospheric circulation[J]. Plateau Meteor,33(1):97-105. DOI:10.7522/j. issn. 1000-0534.2012.00179.<br/>张永莉,范广洲,周定文,等. 2014. 春季南支槽变化特征及其与降水和大气环流的关系[J]. 高原气象,33(1):97-105.
