Climatic Characteristics and Causes of Severe Drought in the Central and Southern Shanxi Province from May to August in 2019

  • Dayong WANG ,
  • Ying CHEN ,
  • Dongfeng ZHANG ,
  • Jiahai YAN ,
  • Guohong ZHANG
Expand
  • Shanxi Climate Center,Taiyuan 030006,Shanxi,China

Received date: 2020-09-24

  Online published: 2021-10-28

Abstract

From May to August in 2019, a severe drought climate events occurred in the central and southern Shanxi Province (an important agricultural production center in the region), which caused great economic losses. This severe drought event on a large scale in Shanxi Province can be attributed to the lack of precipitation for a long time. Based on the monthly precipitation data of 108 stations in Shanxi Province, NCEP / NCAR reanalysis data and COBE-SST sea surface temperature data provided by Japan Meteorological Agency, the characteristics of atmospheric circulation anomaly and sea surface temperature anomaly during drought period and their influence on drought are analyzed. The results show that: (1) During the drought period, the 500 hPa height field over the middle and high latitudes of Asia was dominated by the latitudinal circulation. And Shanxi Province was mainly affected by the strong high pressure ridge near Lake Baikal. Overall, Shanxi Province is controlled by the positive anomaly of the height field. Compared with normal years, the Western Pacific subtropical high showed southwestward extension and southward expansion in the study period, which is unfavorable for the water vapor transportation to northern China; The South Asia high is located more eastward than 10 degree longitudes with stronger intensity, which is not conducive to the precipitation over Shanxi. (2) There is a weak northerly wind anomaly at low altitude 850 hPa wind field during the drought period over Shanxi with multiple branches of water vapor from the equator and the western Pacific Ocean converging to reach the south of Yangtze River in China. The strong water vapor transport flux paths do not pass through Shanxi and it is located by the south, resulting in an overall lack of abundant water vapor conditions in Shanxi. (3) During the drought period, the SST in the equatorial Middle East Pacific shows a neutral warming state. And the SST in Indian Ocean shows a uniform warm mode. For the North Atlantic triode, the SST shows a positive phase, which is conducive to the less precipitation in Shanxi. In addition, the characteristics of anomal in SST in the winter of 2019 are also favorable for the less precipitation from May to August in 2019 in Shanxi Province. In general, the characteristics of anomalies in atmospheric synoptic circulation and sea surface temperature during the drought period are consistent with the typical conditions of anomalies in the years with weak precipitation in Shanxi Province.

Cite this article

Dayong WANG , Ying CHEN , Dongfeng ZHANG , Jiahai YAN , Guohong ZHANG . Climatic Characteristics and Causes of Severe Drought in the Central and Southern Shanxi Province from May to August in 2019[J]. Plateau Meteorology, 2021 , 40(5) : 1127 -1135 . DOI: 10.7522/j.issn.1000-0534.2021.00036

References

[1]Cai X N, Li Y, Zhang X K, al et, 2017. Characteristics of South Asia High in summer in 2010 and its relationship with rainbands in China[J]. Journal of Geoscience and Environment Protection, 5(7):210-222.
[2]Choi K S, Oh S B, Byun H R, al et, 2011. Possible linkage between East Asian summer drought and North Pacific Oscillation [J]. Theoretical and Applied Climatology, 103: 81-93.
[3]Dai A G, Wigley T M L, 2000. Global patterns of ENSO-induced precipitation [J]. Geophysical Research Letters, 27(9): 1283-1286.
[4]Li H X, Chen H P, Wang H J, al et, 2018. Can Barents Sea Ice decline in spring enhance summer hot drought events over northeastern China [J]. Journal of Climate,31(12) : 4705-4725.
[5]Mccabe G J, Palecki M A, Betancourt J L, 2004. Pacific and Atlantic Ocean influences on multidecadal drought frequency in the United States [J]. Proceedings of the National Academy of Sciences of the United States of America, 101(12): 4136-4141.
[6]Tian B Q, Fan K, 2012. Relationship between the late spring NAO and summer extreme precipitation frequency in the middle and lower reaches of the Yangtze River[J]. Atmospheric and Oceanic Science Letters,5(6): 455-460.
[7]Wu B Y, Zhang R H, Wang B,al et, 2009. On the association between spring Arctic sea ice concentration and Chinese summer rainfall [J]. Geophysical Research Letters, 36(9) : L09501.
[8]Yang J L, Liu Q Y, Xie S P, al et, 2007. Impact of the Indian Ocean SST basin mode on the Asian summer monsoon [J]. Geophysical Research Letters, 34(2): L02708.
[9]Yang Q, Ma Z G, Fan X G, al et, 2017. Decadal modulation of precipitation patterns over eastern China by sea surface temperature anomalies [J]. Journal of Climate, 30 (17): 7017-7033.
[10]陈丽娟, 顾薇, 龚振淞, 等, 2019. 影响2018年汛期气候的先兆信号及预测效果评估[J]. 气象, 45(4): 553-564.
[11]陈永仁, 李跃清, 齐冬梅, 2012. 南亚高压对川渝地区盛夏极端旱涝的影响分析[J]. 热带气象学报, 28(6): 924-932.
[12]封国林, 杨涵洧, 张世轩, 等, 2012. 2011年春末夏初长江中下游地区旱涝急转成因初探[J]. 大气科学, 36(5): 1009-1026.
[13]高 辉, 袁媛, 洪洁莉, 等, 2017. 2016年汛期气候预测效果评述及主要先兆信号与应用[J]. 气象, 43(4): 486-494.
[14]郭帅宏, 王黎娟, 王苗, 2014. 南亚高压建立早晚与亚洲热带夏季风及中国中东部夏季降水的关系[J]. 热带气象学报, 30(1):129-136.
[15]郝立生, 丁一汇, 康文英, 等, 2012. 印度洋海温变化与华北夏季降水减少的关系[J]. 气候变化研究快报, 1(1):13-21.
[16]胡景高, 陶丽, 周兵, 2010. 南亚高压活动特征及其与我国东部夏季降水的关系[J]. 高原气象, 29(1):128-136.
[17]黄燕燕, 钱永甫, 2004. 长江流域、华北降水特征与南亚高压的关系分析[J]. 高原气象, 23(1):68-74.
[18]姜大膀, 王会军, 2005. 20世纪后期东亚夏季风年代际减弱的自然属性[J]. 科学通报, 50(20): 2256-2262.
[19]金炜昕, 孙丞虎, 李维京, 2014. 2012年7月华北降水异常成因分析[J]. 气象, 40(5): 541-548.
[20]柯宗建, 王永光, 龚振淞, 2014. 2013年汛期气候预测的先兆信号及其应用[J]. 气象, 40(4): 502-509.
[21]李启芬,吴哲红,王兴菊,等,2020. 1981年以来中国夏季降水变化特征及其与SST和前期环流的联系[J]. 高原气象, 39(1): 58-67. DOI:10.7522/j.issn.1000-0534.2018.00148
[22]刘梅, 胡洛林, 张备, 等, 2008. 梅汛期100 hPa南亚高压特征与江苏梅雨关系研究[J]. 热带气象学报, 24(3): 285-293.
[23]刘毓赟, 赵荻, 曹杰, 2008. 热带太平洋和印度洋海温异常对东亚冬季风影响的一个物理机制[J]. 高原山地气象研究, 28(1): 24-29.
[24]马柱国, 邵丽娟, 2006. 中国北方近百年干湿变化与太平洋年代际振荡的关系[J]. 大气科学, 30(3): 464-474.
[25]唐红玉, 吴遥, 董新宁, 等, 2019. 重庆2017年秋季降水异常成因分析[J]. 气象, 45(6): 799-810.
[26]陶诗言, 卫捷, 孙建华, 等, 2009. 2008/2009年秋冬季我国东部严重干旱分析[J]. 气象, 35(4): 3-10.
[27]万云霞, 晏红明, 金燕, 等, 2020. 低纬高原水汽输送特征及其对云南气候的影响[J]. 高原气象,39(5): 925-934. DOI:10.7522/j.issn.1000-0534.2019.00082
[28]王天竺, 赵勇, 2021. 青藏高原和热带印度洋5月热力异常与新疆夏季降水的关系[J]. 高原气象, 40(1): 1-14. DOI:10.7522/j.issn.1000-0534.2020.00003.
[29]卫捷, 张庆云, 陶诗言, 2003. 近20年华北地区干旱期大气环流异常特征[J]. 应用气象学报, 14(2):140-151.
[30]魏凤英,2007. 现代气候统计诊断与预测技术[M]. 北京:气象出版社.
[31]魏建宁, 张杰, 2021. 亚非副热带西风急流入口区位置及动能异常对中国华北盛夏年代际干旱的影响[J]. 高原气象, 40(2): 281-291. DOI:10.7522/j.issn.1000-0534.2020.00043.
[32]魏维, 张人禾, 温敏, 2012. 南亚高压的南北偏移与我国夏季降水的关系[J]. 应用气象学报, 23(6):650-659.
[33]杨修群, 谢倩, 朱益民, 等, 2005. 华北降水年代际变化特征及相关的海气异常型[J]. 地球物理学报, 48(4): 789-797.
[34]叶培龙, 刘新伟, 赵文婧, 等, 2019. 2016年8月甘肃省持续性高温过程及其异常大气环流特征[J]. 高原气象, 38(6): 1283-1292. DOI:10.7522/j.issn.1000-0534.2019.00006
[35]张启龙, 翁学传, 程明华, 1999.华北地区汛期降水与热带西太平洋暖池和黑潮的关系[J].高原气象, 18(4):575-583.
[36]张新荣, 林纾, 杨民, 2004. 甘肃省夏季极端最高气温的气候特征[J]. 干旱气象, 22(3):44-48.
[37]张新荣, 张铁军, 刘治国, 2004. 南亚高压季节性变化与甘肃省春季和初夏降水关系初探[J].干旱气象, 22(1):34-37.
[38]赵晓琳, 2019. 2018年我国梅雨特征及梅雨期降水异常成因分析[J]. 气象与环境科学, 42(3): 29-33.
[39]支蓉, 陈丽娟, 竺夏英, 2018. 2017年秋季我国北方地区降水异常偏多成因分析[J]. 气象, 44(4): 572-581.
[40]周明森, 简茂球, 乔云亭, 2013.华南4-5月持续性干旱及其环流背景[J]. 气象学报, 71(1): 76-85.
Outlines

/