The impact of tropical intraseasonal oscillation on the summer rainfall increase over southern China around 1992/1993

被引:15
作者
Wang, Jiabao [1 ,2 ,6 ]
Wen, Zhiping [1 ,2 ,4 ,5 ]
Wu, Renguang [3 ]
Lin, Ailan [7 ]
机构
[1] Sun Yat Sen Univ, Ctr Monsoon & Environm Res, Guangzhou 510275, Guangdong, Peoples R China
[2] Sun Yat Sen Univ, Dept Atmospher Sci, Guangzhou 510275, Guangdong, Peoples R China
[3] Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100029, Peoples R China
[4] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China
[5] Jiangsu Collaborat Innovat Ctr Climate Change, Nanjing, Jiangsu, Peoples R China
[6] SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA
[7] CMA, Inst Trop & Marine Meteorol, Key Open Lab Trop Monsoon, Guangzhou, Peoples R China
基金
中国国家自然科学基金;
关键词
Intraseasonal oscillation (ISO); Interdecadal change; Summer rainfall; Southern China; MADDEN-JULIAN OSCILLATION; MONSOON RAINFALL; RIVER-BASIN; EAST-ASIA; PRECIPITATION; MJO; CIRCULATION; CONVECTION; ANOMALIES; PACIFIC;
D O I
10.1007/s00382-016-3425-8
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
A pronounced summer rainfall increase over southern China occurred around 1992/1993. In the present study, the impact of the boreal summer intraseasonal oscillation (BSISO) on this decadal increase is investigated through diagnostic analysis. It is found that the BSISO-induced rainfall increase accounts for approximately 17.4% of the observed decadal rainfall increase, with a primary part coming from changes in the rainfall pattern associated with phases 3-5 of the BSISO. A further analysis reveals that changes in rainfall pattern over southern China are mainly ascribed to changes in spatial structure of anomalous convection associated with interdecadal change in BSISO tracks. Apart from significant influence of changes in BSISO tracks, changes in the frequency of individual active BSISO phases also have considerable influence on the interdecadal change in summer rainfall over southern China. Based on our analysis, the increase in absolute and relative frequency of occurrence of phases 1 and 8, coupled with their corresponding rainfall pattern, makes a positive contribution to the increase in southern China summer rainfall. The interdecadal change in the BSISO tracks and the frequency of active BSISO phases is likely related to coherent changes in atmospheric circulation and sea surface temperature over the Indian Ocean and the western Pacific.
引用
收藏
页码:1847 / 1863
页数:17
相关论文
共 74 条
  • [1] [Anonymous], 2008, J HIDROSFIR INDONESI
  • [2] Enhanced MJO-like Variability at High SST
    Arnold, Nathan P.
    Kuang, Zhiming
    Tziperman, Eli
    [J]. JOURNAL OF CLIMATE, 2013, 26 (03) : 988 - 1001
  • [3] Modulation of daily precipitation over southwest Asia by the Madden-Julian oscillation
    Barlow, M
    Wheeler, M
    Lyon, B
    Cullen, H
    [J]. MONTHLY WEATHER REVIEW, 2005, 133 (12) : 3579 - 3594
  • [4] Barlow M, 2012, INTRASEASONAL VARIABILITY IN THE ATMOSPHERE-OCEAN CLIMATE SYSTEM, SECOND EDITION, P477
  • [5] Characteristics and origin of quasi-biweekly oscillation over the western North Pacific during boreal summer
    Chen, Guanghua
    Sui, Chung-Hsiung
    [J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2010, 115
  • [6] Influences of northward propagating 25-90-day and quasi-biweekly oscillations on eastern China summer rainfall
    Chen, Jiepeng
    Wen, Zhiping
    Wu, Renguang
    Chen, Zesheng
    Zhao, Ping
    [J]. CLIMATE DYNAMICS, 2015, 45 (1-2) : 105 - 124
  • [7] Contribution of south China Sea tropical cyclones to an increase in southern China summer rainfall around 1993
    Chen Jiepeng
    Wu Renguang
    Wen Zhiping
    [J]. ADVANCES IN ATMOSPHERIC SCIENCES, 2012, 29 (03) : 585 - 598
  • [8] Chen LX, 2001, ADV ATMOS SCI, V18, P623
  • [9] Influence of two types of El Nios on the East Asian climate during boreal summer: a numerical study
    Chen, Zesheng
    Wen, Zhiping
    Wu, Renguang
    Zhao, Ping
    Cao, Jie
    [J]. CLIMATE DYNAMICS, 2014, 43 (1-2) : 469 - 481
  • [10] Variational bias correction of satellite radiance data in the ERA-Interim reanalysis
    Dee, D. P.
    Uppala, S.
    [J]. QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY, 2009, 135 (644) : 1830 - 1841