ZHANG Ying, DU Yan, ZHANG Yuhong, GAO Shan. Asymmetry of upper ocean salinity response to the Indian Ocean dipole events as seen from ECCO simulation[J]. Acta Oceanologica Sinica, 2016, 35(7): 42-49. doi: 10.1007/s13131-016-0904-z
Citation: ZHANG Ying, DU Yan, ZHANG Yuhong, GAO Shan. Asymmetry of upper ocean salinity response to the Indian Ocean dipole events as seen from ECCO simulation[J]. Acta Oceanologica Sinica, 2016, 35(7): 42-49. doi: 10.1007/s13131-016-0904-z

Asymmetry of upper ocean salinity response to the Indian Ocean dipole events as seen from ECCO simulation

doi: 10.1007/s13131-016-0904-z
  • Received Date: 2015-06-23
  • Rev Recd Date: 2015-10-12
  • The interannual variability of salinity and associated ocean dynamics in the equatorial Indian Ocean is analyzed using observations and numerical simulations by the Estimating the Circulation and Climate of the Ocean (ECCO) model. The results show that salinity anomalies in the upper ocean are asymmetrically associated with the Indian Ocean dipole (IOD) events, with stronger response during their positive phases. Further investigations reveal that zonal currents along the equator, the Wyrtki jets, dominate the salinity transport. During the positive IOD events, the Wyrtki jets have stronger westward anomalies. The positive skewness of the IOD explains that the amplitude of the anomalous Wyrtki jets is stronger in the positive IOD events than that in the negative events.
  • loading
  • Adler R F, Huffman G J, Chang A, et al. 2003. The version-2 global precipitation climatology project (GPCP) monthly precipita-tion analysis (1979-present). Journal of Hydrometeorology, 4(6):1147-1167
    Cai Wenju, Qiu Yun. 2013. An observation-based assessment of non-linear feedback processes associated with the Indian Ocean Di-pole. Journal of Climate, 26(9):2880-2890
    Chu P C. 2010. Observational studies on association between east-ward equatorial jet and Indian Ocean dipole. Journal of Ocean-ography, 66(3):429-434
    Deshpande A, Gnanaseelan C. 2012. Impact of spring Wyrtki jets and their variability on Indian summer monsoon. In:International Conference on "Opportunities and Challenges in Monsoon Prediction in a Changing Climate" (OCHAMP-2012)
    Donguy J R, Meyers G. 1996. Seasonal variations of sea-surface salin-ity and temperature in the tropical Indian Ocean. Deep-Sea Re-search:Part I. Oceanographic Research Papers, 43(2):117-138
    Du Yan, Qu Tangdong, Meyers G. 2008. Interannual variability of sea surface temperature off java and Sumatra in a global GCM. Journal of Climate, 21(11):2451-2465
    Du Yan, Zhang Yuhong. 2015. Satellite and Argo observed surface sa-linity variations in the tropical Indian Ocean and their associ-ation with the Indian Ocean Dipole mode. Journal of Climate, 28(2):695-713
    Gent P R, McWilliams J C. 1990. Isopycnal mixing in ocean circula-tion models. Journal of Physical Oceanography, 20(1):150-155
    Gnanaseelan C, Deshpande A, Mcphaden M J. 2012. Impact of Indi-an Ocean Dipole and El Ni.o/Southern Oscillation wind-for-cing on the Wyrtki jets. Journal of Geophysical Research:Oceans (1978-2012), 117(C8):C08005
    Gordon A L, Ma Shubin, Olson D B et al. 1997. Advection and diffu-sion of Indonesian throughflow water within the Indian Ocean South Equatorial Current. Geophysical Research Letters, 24(21):2573-2576
    Han Weiqing, McCreary Jr J P. 2001. Modeling salinity distributions in the Indian Ocean. Journal of Geophysical Research:Oceans (1978-2012), 106(C1):859-877
    Han Weiqing, McCreary Jr J P, Anderson D L T, et al. 1999. Dynamics of the eastern surface jets in the equatorial Indian Ocean. Journal of Physical Oceanography, 29(9):2191-2209
    Hong C C, Li T, Lin Ho, et al. 2008. Asymmetry of the Indian Ocean dipole. Part I:Observational analysis. Journal of Climate, 21(18):4834-4848
    Huffman G J. 1997. Estimates of root-mean-square random error for finite samples of estimated precipitation. Journal of Applied Meteorology, 36(9):1191-1201
    Jensen T G. 2001. Arabian Sea and Bay of Bengal exchange of salt and tracers in an ocean model. Geophysical Research Letters, 28(20):3967-3970
    Jensen T G. 2003. Cross-equatorial pathways of salt and tracers from the northern Indian Ocean:modelling results. Deep-Sea Re-search:Part Ⅱ. Topical Studies in Oceanography, 50(12-13):2111-2127
    Johnson E S, Bonjean F, Lagerloef G S E, et al. 2007. Validation and error analysis of OSCAR sea surface currents. Journal of Atmo-spheric and Oceanic Technology, 24(4):688-701
    Joseph S, Wallcraft A J, Jensen T G, et al. 2012. Weakening of spring Wyrtki jets in the Indian Ocean during 2006-2011. Journal of Geophysical Research:Oceans (1978-2012), 117(C4):doi: 10.1029/2011JC007581
    Kumar S P, Prasad T G. 1999. Formation and spreading of Arabian Sea high-salinity water mass. Journal of Geophysical Research:Oceans (1978-2012), 104(C1):1455-1464
    Lagerloef G S E. 2002. Introduction to the special section:the role of surface salinity on upper ocean dynamics, air-sea interaction and climate. Journal of Geophysical Research:Oceans, 107(C12):SRF 1-1-SRF 1-2
    Large W G, McWilliams J C, Doney S C. 1994. Oceanic vertical mixing:a review and a model with a nonlocal boundary layer paramet-erization. Reviews of Geophysics, 32(4):363-403
    Masson S, Delecluse P, Boulanger J P, et al. 2002. A model study of the seasonal variability and formation mechanisms of the barri-er layer in the eastern equatorial Indian Ocean. Journal of Geo-physical Research:Oceans (1978-2012), 107(C12):SRF-18-1-SRF 18-20
    Mears C A, Smith D K, Wentz F J. 2000. Detecting rain with QuikS-CAT[C]//Geoscience and Remote Sensing Symposium. Pro-ceedings. IGARSS 2000. IEEE 2000 International. IEEE, 2000, 3:1235-1237.
    Murtugudde R, Busalacchi A J. 1999. Interannual variability of the dy-namics and thermodynamics of the tropical Indian Ocean. Journal of Climate, 12(8):2300-2326
    Nagura M, McPhaden M J. 2010a. Wyrtki jet dynamics:seasonal vari-ability. Journal of Geophysical Research:Oceans (1978-2012), 115(C7):doi: 10.1029/2009JC005922
    Nagura M, McPhaden M J. 2010b. Dynamics of zonal current vari-ations associated with the Indian Ocean dipole. Journal of Geo-physical Research:Oceans (1978-2012), 115(C11):doi: 10.1029/2010JC006423
    O'Brien J J, Hurlburt H E. 1974. Equatorial jet in the Indian Ocean:theory. Science, 184(4141):1075-1077
    Qiu Yun, Cai Wenju, Guo Xiaogang et al. 2014. The asymmetric influ-ence of the positive and negative IOD events on China's rain-fall. Scientific Reports, 4:4943
    Qiu Yun, Li Li, Yu Weidong. 2009. Behavior of the Wyrtki jet observed with surface drifting buoys and satellite altimeter. Geophysical Research Letters, 36(18):L18607
    Qu Tandong, Meyers G. 2005. Seasonal variation of barrier layer in the southeastern tropical Indian Ocean. Journal of Geophysical Research:Oceans (1978-2012), 110(C11):doi: 10.1029/2004JC002816
    Rao R R, Sivakumar R. 2003. Seasonal variability of sea surface salin-ity and salt budget of the mixed layer of the north Indian Ocean. Journal of Geophysical Research:Oceans (1978-2012), 108(C1):doi: 10.1029/2001JC000907
    Redi M H. 1982. Oceanic isopycnal mixing by coordinate rotation. Journal of Physical Oceanography, 12(10):1154-1158
    Roemmich D, Gilson J. 2009. The 2004-2008 mean and annual cycle of temperature, salinity, and steric height in the global ocean from the Argo Program. Prog Oceanogr, 82(2):81-100
    Saji N H, Goswami B N, Vinayachandran P N, et al. 1999. A dipole mode in the tropical Indian Ocean. Nature, 401(6751):360-363
    Schott F, Reppin J, Fischer J, et al. 1994. Currents and transports of the Monsoon Current south of Sri Lanka. Journal of Geophysic-al Research:Oceans (1978-2012), 99(C12):25127-25141
    Schott F A, Xie Shangping, McCreary J P. 2009. Indian Ocean circula-tion and climate variability. Reviews of Geophysics, 47(1):GR1002
    Smith T M, Reynolds R W, Peterson T C, et al. 2008. Improvements to NOAA's historical merged land-ocean surface temperature analysis (1880-2006). Journal of Climate, 21(10):2283-2296
    Song Qian, Gordon A L. 2004. Significance of the vertical profile of the Indonesian Throughflow transport to the Indian Ocean. Geo-physical Research Letters, 31(16):doi: 10.1029/2004GL020360
    Subrahmanyam B, Murty V S N, Heffner D M. 2011. Sea surface salin-ity variability in the tropical Indian Ocean. Remote Sensing of Environment, 115(3):944-956
    Susanto R D, Gordon A L, Zheng Quanan. 2001. Upwelling along the coasts of Java and Sumatra and its relation to ENSO. Geophys-ical Research Letters, 28(8):1599-1602
    Thompson B, Gnanaseelan C, Salvekar P S. 2006. Variability in the In-dian Ocean circulation and salinity and its impact on SST an-omalies during dipole events. Journal of Marine Research, 64(6):853-880
    Tozuka T, Luo Jingjia, Masson S, et al. 2007. Decadal modulations of the Indian Ocean dipole in the SINTEX-F1 coupled GCM. Journal of Climate, 20(13):2881-2894
    Vinayachandran P N V, Saji N H, Yamagata T. 1999. Response of the equatorial Indian Ocean to an unusual wind event during 1994. Geophysical Research Letters, 26(11):1613-1616
    Webster P J, Moore A M, Loschnigg J P, et al. 1999. Coupled ocean-at-mosphere dynamics in the Indian Ocean during 1997-98. Nature, 401(6751):356-360
    Wentz F J. 1997. A well calibrated ocean algorithm for SSM/I. Journal of Geophysical Research, 102(C4):8703-8718
    Wyrtki K. 1973. An equatorial jet in the Indian Ocean. Science, 181(4096):262-264
    Yamagata T, Mizuno K, Masumoto Y. 1996. Seasonal variations in the equatorial Indian Ocean and their impact on the Lombok throughflow. Journal of Geophysical Research:Oceans (1978-2012), 101(C5):12465-12473
    Yu Lisan. 2011. A global relationship between the ocean water cycle and near-surface salinity. Journal of Geophysical Research:Oceans (1978-2012), 116(C10):C10025
    Yu Weidong, Xiang Baoqiang, Liu Lin, et al. 2005. Understanding the origins of interannual thermocline variations in the tropical In-dian Ocean. Geophysical Research Letters, 32(24):L24706
    Yuan Dongliang, Liu Hailong. 2009. Long-wave dynamics of sea level variations during Indian Ocean Dipole events. Journal of Phys-ical Oceanography, 39(5):1115-1132
    Zhang Yuhong, Du Yan. 2012. Seasonal variability of salinity budget and water exchange in the northern Indian Ocean from HY-COM assimilation. Chinese Journal of Oceanology and Limno-logy, 30(6):1082-1092
    Zhang Yuhong, Du Yan, Xu Haiming. 2012. Seasonal variability of the west-east water mass exchange on the section of central equat-orial Indian Ocean and its regional difference. Haiyang Xuebao (in Chinese), 34(2):30-38
    Zhang Yuhong, Du Yan, Zheng Shaojun, et al. 2013. Impact of Indian Ocean Dipole on the salinity budget in the equatorial Indian Ocean. Journal of Geophysical Research:Oceans, 118(10):4911-4923
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (839) PDF downloads(654) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return