Wyrtki Jet anomaly in May and its relationship with Asian tropical summer monsoon

ZHANG Dong-ling; LU Xu; ZHANG Ming

doi:10.3969/j.issn.1001-909X.2018.01.002

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Journal of Marine Sciences ›› 2018, Vol. 36 ›› Issue (1) : 16-26. DOI: 10.3969/j.issn.1001-909X.2018.01.002

Wyrtki Jet anomaly in May and its relationship with Asian tropical summer monsoon

ZHANG Dong-ling¹, LU Xu^2,3, ZHANG Ming^*3

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Abstract

The Complex EOF (CEOF) analysis of the upper abnormal circulation of the tropical Indian Ocean in May was carried out based on 52 years Carton data. The inter-annual and inter-decadal variation of Wyrtki Jet, and the relationship between the Jet and the Asian tropical summer monsoon were presented. The main results show that the first mode could be called as Wyrtki Jet mode which reflected the general intensity of Wyrtki Jet in May of every year. The first mode had obvious inter-annual variation in every 8 years, which was consistent with one of the inter-annual variations of Asian summer monsoon. It also had obvious inter-decadal variations in every 17 and 23 years. The latter was consistent with the PDO period of the main climate mode in North Pacific. When the intensity of Wyrtki Jet was weaker, the estabishment data of the summer monsoon in South China Sea and South Asia was usually earlier, and the summer monsoon in South China Sea was most likely stronger, and vice versa. The second mode reflected the non-uniformity of Wyrtki Jet in the east and west directions of equatorial Indian Ocean. It had very obvious inter-decadal variations in every 11 and 18-19 years. The former was consistent with the period of NPGO of the secondary climate mode in North Pacific. The second mode also had inter-annual variation in every 5 years.

Key words

tropical Indian Ocean / Wyrtki Jet / inter-annual and inter-decadal variation / South China Sea summer monsoon / South Asian summer monsoon

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ZHANG Dong-ling, LU Xu, ZHANG Ming. Wyrtki Jet anomaly in May and its relationship with Asian tropical summer monsoon[J]. Journal of Marine Sciences. 2018, 36(1): 16-26 https://doi.org/10.3969/j.issn.1001-909X.2018.01.002

References

[1] HAN Wei-qing, MCCREARY J R J P, ANDERSON D L T, et al. On the dynamics of the eastward surface jets in the equatorial Indian Ocean[J]. Journal of Physical Oceanography, 1999, 2(29): 2 191-2 209.
[2] DING Yi-hui, SUN Ying, LIU Yun-yun, et al. Interdecadal and interannual variabilities of the Asian Summer Monsoon and its projection of future change[J]. Chinese Journal of Atmospheric Sciences, 2013, 37 (2): 253-280.
丁一汇,孙颖,刘芸芸,等. 亚洲夏季风的年际和年代际变化及其未来预测[J]. 大气科学,2013, 37 (2): 253-280.
[3] LI Lin, LI Chong-Yin, QUE Zhi-ping. Further research on mechanism of TBO in south Asian monsoon region[J]. Journal of Tropical Meteorology, 2013, 29(1):1-6.
李琳,李崇银,阙志萍. 南亚季风区TBO机制的进一步研究[J].热带气象学报,2013, 29(1):1-6.
[4] NAGURA M, MCPHADEN M J. Wyrtki jet dynamics: seasonal variability[J]. Journal of Geophysical Research Atmospheres, 2010 , 115(C7):319-336.
[5] NAGURA M, MCPHADEN M J. Zonal momentum budget along the equator in the Indian Ocean from a high-resolution ocean general circulation model[J]. Journal of Geophysical Research Oceans, 2014, 119(7):4 444-4 461.
[6] STRUTTON P G, COLES V J, HOOD R R, et al. Biogeochemical variability in the central equatorial Indian Ocean during the monsoon transition[J]. Biogeosciences Discussion, 2015, 12(8): 2 367-2 382.
[7] GNANASEELAN C, DESHPANDE A, MCPHADEN M J. Impact of Indian Ocean Dipole and El Niño/Southern Oscillation wind-forcing on the Wyrtki jets[J]. Journal of Geophysical Research Atmospheres, 2012, 117(C08005): 1-12.
[8] QIU Y, CAI W, LI L, et al. Argo profiles variability of barrier layer in the tropical Indian Ocean and its relationship with the Indian Ocean Dipole[J]. Geophysical Research Letters, 2012, 39(8):85-93.
[9] MCPHADEN M J, NAGURA M. Indian Ocean dipole interpreted in terms of recharge oscillator theory[J].Climate Dynamics, 2013, 42(5):1 569-1 586.
[10] NYADJRO E S, MCPHADEN M J. Variability of zonal currents in the eastern equatorial Indian Ocean on seasonal to interannual time scales[J]. Journal of Geophysical Research Oceans, 2014, 119(11):7 969-7 986.
[11] WANG Yi, CUI Feng-Juan. The structure and seasonal variation of upper-layer currents at central equatorial Indian ocean[J]. Oceanologia et Limnologia Sinica, 2015, 46 (2) :241-247.
王毅,崔凤娟. 赤道中印度洋上层环流结构与季节变化特征分析[J]. 海洋与湖沼,2015, 46 (2) :241-247.
[12] ZHANG Dong-ling, LÜ Qing-ping, ZHANG Li-feng. Dynamical statistic analysis of decadal anomalies of air-sea circulation in the north Pacific during winter[J]. Chinese Journal of Atmospheric Sciences, 2015, 39(4):692-704.
张东凌,吕庆平,张立凤. 冬季北太平洋海气环流年代际异常的统计动力诊断[J].大气科学,2015, 39(4):692-704.
[13] LIANG Jian-yin, WU Shang-sen. Diagnostic analysis of interdecadal changes of the summer monsoon in the South China Sea[J]. Acta Meteorologica Sinica, 2003, 17(S1): 81-95.
[14] Zeng Qing-cun, ZHANG Dong-ling, ZHANG Ming, et al. The abrupt seasonal transitions in the atmospheric general circulation and the onset of monsoons. Part Ⅰ. Basic theoretical method and its application to the analysis of climatological mean observations[J].Climatic and Environmental Research,2005,10(3):285-302.
曾庆存,张东凌,张铭,等.大气环流的季节突变与季风的建立Ⅰ——基本理论方法和气候场分析[J].气候与环境研究,2005,10(3): 285-302.
[15] CARTON J A,CHEPURIN G, CAO X, et al. A simple ocean data assimilation analysis of the global upper ocean 1950-1995,Part I[J]. J Phys Oceanogr, 2000,30(2):294-309.
[16] NORTH G R, BELL T L, CAHALAN R F, et al. Sampling errors in the estimation of empirical orthogonal function[J]. Mon Wea Rev, 1982,110(7): 699-706.
[17] XUAN Li-li, QIU Yun, XU Jin-dian. Seasonal variation of surface-layer circulation in the eastern tropical Indian Ocean[J]. Journal of Tropical Oceanography, 2014, 33(1):26-35.
宣莉莉,邱云,许金电. 热带东印度洋表层环流季节变化特征研究[J].热带海洋学报,2014, 33(1):26-35.
[18] YAMG Xiu-qun, ZHU Yi-min, XIE Qian, et al. Advances in studies of Pacific decadal oscillation[J]. Chinese Journal of Atmosphere Science,2004, 28(6): 979-992.
杨修群,朱益民,谢倩, 等. 太平洋年代际振荡的研究进展[J]. 大气科学,2004, 28(6):979-992.
[19] LÜ Qing-ping, LU Kai-cheng, ZHANG Ming. NPGO mode of the upper sea temperature anomalies in the North Pacific during winter[J]. Climatic and Environmental Research, 2013, 18(2):210-220.
吕庆平,路凯程,张铭. 北太平洋冬季上层海温异常的NPGO模态[J].气候与环境研究,2013, 18(2):210-220.
[20] WU Shang-sen, LIANG Jian-yin. An index of South China Sea summer monsoon intensity and its variation characters[J]. Journal of Tropical Meteorology, 2001,17(4):337-344.
吴尚森,梁建茵. 南海夏季风强度指数及其变化特征[J].热带气象学报,2001,17(4):337-344.
[21] ZHANG Xue-hong, YU Yong-qiang, ZHOU Tian-jun, et al. A lecture on the numerical simulation of ocean circulation and sea air interaction[M]. Beijing: China Meteorological Press, 2013:17-29.
张学洪, 俞永强, 周天军, 等. 大洋环流和海气相互作用的数值模拟讲义[M].北京:气象出版社,2013:17-29.
[22] LI Xiao-feng, GUO Pin-wen, DONG Li-na, et al. Onset process of summer Somali jet and the possible influenced mechanims[J]. Transactions of Atmospheric Sciences, 2006, 29(5):599-605.
李晓峰,郭品文,董丽娜, 等.夏季索马里急流的建立及其影响机制[J].大气科学学报,2006, 29(5):599-605.
[23] CONG Jing, GUAN Zhao-Yong, WANG Li-juan. Interannual (Interdecadal) variabilities of two cross-equatorial flows in association with the Asia summer monsoon variations[J]. Journal of Nanjing Institute of Meteorology, 2007, 30(6):779-785.
丛菁,管兆勇,王黎娟. 夏季亚澳季风区两支越赤道气流年(代)际变化及其与夏季风活动的联系[J]. 南京气象学院学报,2007, 30(6):779-785.
[24] GAO Hui, XUE Feng. Seasonal variation of the cross-equatorial flows and their influences on the onset of South China Sea summer monsoon[J]. Climatic and Environmental Research, 2006, 11(1):57-68.
高辉,薛峰. 越赤道气流的季节变化及其对南海夏季风爆发的影响[J]. 气候与环境研究,2006, 11(1):57-68.
[25] WANG Ping. The impaction of cross-equatorial flows and Australian High on the onset of South China Sea summer monsoon[D]. Nanjing: Nanjing University of Information Science and Technology, 2007:8-23.
王平. 越赤道气流、澳大利亚高压对南海夏季风爆发的影响[D]. 南京:南京信息工程大学,2007:8-23.
[26] DAI Wei. Multi-time scale variation characteristics of Somali jet and its impact on the Asian monsoon[D]. Beijing: Chinese Academy of Meteorological Sciences, 2013:19-28.
代玮. 索马里急流多时间尺度的变化特征及其对亚洲季风的影响[D].北京:中国气象科学研究院,2013:19-28.
[27] ANANTHAKRISHNAN R, SOMAN M K. Onset of southwest monsoon over Kerala 1901-1980[J]. J Climat, 1988,8(3): 283-296.
[28] WANG Hui-jun, XUE Feng. Interannual variability of Somali jet and its influences on the inter-hemispheric water vapor transport and on the east Asian summer rainfall[J]. Chinese Journal of Geophysics, 2003,46(1):18-25.
王会军, 薛峰. 索马里急流的年际变化及其对半球间水汽输送和东亚夏季降水的影响[J].地球物理学报,2003,46(1):18-25.
[29] HE Chun. Study on the seasonal process and mechanism of Asian summer monsoon establishment [D]. Nanjing: Nanjing University of Information Science and Technology, 2006:77-84.
何春. 亚洲夏季风建立的季节进程及机理研究[D].南京:南京信息工程大学,2006:77-84.
[30] DONG Yu-jie. The relationship between the tropical indo-Pacific ocean heat content and the intensity of South China Sea-south Asian summer monsoon[D]. Beijing: Graduate University of Chinese Academy of Sciences(Institute of Oceanography), 2015.
董玉杰. 热带印度洋-太平洋海洋热含量与南海-南亚夏季风强度的关系[D].北京:中国科学院研究生院(海洋研究所),2015.
[31] ZHAO Er-xu, LÜ Jun-mei, JU Jian-hua. Impacts of onset of summer monsoon over southeast Asia on the rainy season in Yunnan[J]. Journal of Tropical Meteorology, 2006, 22(3):209-216.
赵尔旭,吕俊梅,琚建华.东南亚地区夏季风爆发对云南雨季开始的影响[J].热带气象学报,2006, 22(3):209-216.
[32] BAI Hui, GAO Hui. Influences of the Somalia cross-equatorial flow on the beginning date of rainy season in southwest China[J]. Chinese Journal of Atmospheric Sciences, 2017, 41(4):702-712.
白慧,高辉. 索马里越赤道气流对西南雨季开始早晚的影响[J]. 大气科学,2017, 41(4):702-712.