Effects of interannual salinity variability on the dynamic height in the western equatorial Pacific as diagnosed by Argo

ZHENG Fei; WANG Hui; WAN Liying

doi:10.1007/s13131-015-0663-2

doi: 10.1007/s13131-015-0663-2

1.
International Center for Climate and Environment Science (ICCES), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
2.
National Meteorological Center, Beijing 100081, China
3.
Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, Beijing 100081, China

基金项目: The National Program for Support of Top-notch Young Professionals; the National Basic Research Program (973 Program) of China under contract No. 2012CB417404; the Chinese Academy Sciences' Project “Western Pacific Ocean System: Structure, Dynamics and Consequences” (WPOS) under contract No. XDA10010405; the National Natural Science Foundation of China under contract No. 41176014.

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- 收稿日期: 2014-08-29
- 修回日期: 2014-12-06

Effects of interannual salinity variability on the dynamic height in the western equatorial Pacific as diagnosed by Argo

1.
International Center for Climate and Environment Science (ICCES), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China
2.
National Meteorological Center, Beijing 100081, China
3.
Key Laboratory of Research on Marine Hazards Forecasting, National Marine Environmental Forecasting Center, Beijing 100081, China

摘要

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Abstract: In this paper, interannual variations of the ocean dynamic height over the tropical Pacific are diagnosed using three-dimensional temperature and salinity fields from Argo profiles, with a focus on the effects of interannually varying salinity on the El Niño-Southern Oscillation (ENSO) evolutions. The diagnostic analyses clearly demonstrate a significant and large role that the salinity field plays in modulating the sea surface dynamic height (SSDH) in the western tropical Pacific. In particular, the contribution of the interannually varying salinity to the interannual variations in SSDH approximately equals to that of the interannually varying temperature. Over the western equatorial Pacific, the salinity variability was responsible for a 30% to 40% reduction in SSDH anomaly in opposition to the thermal build up in SSDH anomaly, providing an important contribution to modulating the seasonal-to-interannual evolution of the tropical Pacific Ocean and affecting the developing of ENSO events.
- salinity effect /
- SSDH /
- ENSO /
- Argo /
- western tropical Pacific

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参考文献(28)

Bosc C, Delcroix T, Maes C. 2009. Barrier layer variability in the west-ern Pacific warm pool from 2000 to 2007. J Geophys Res, 114(C6): C06023, doi: 10.1029/2008JC005187

Cravatte S, Delcroix T, Zhang Dongxiao, et al. 2009. Observed freshening and warming of the western Pacific warm pool. Clim Dyn, 33(4): 565-589

Delcroix T, Cravatte S, McPhaden M J. 2007. Decadal variations and trends in tropical Pacific sea surface salinity since 1970. J Geo-phys Res, 112(C3): C03012, doi: 10.1029/2006JC003801

Delcroix T, Hénin C. 1991. Seasonal and interannual variations of sea surface salinity in the tropical Pacific ocean. J Geophys Res, 96(C12): 22135-22150

Eldin G, Rodier M, Radenac M H. 1997. Physical and nutrient variab-ility in the upper equatorial Pacific associated with westerly wind forcing and wave activity in October 1994. Deep-Sea Re-search Part II: Topical Studies in Oceanography, 44(9-10): 1783-1800

Fedorov A V, Pacanowski R C, Philander S G H, et al. 2004. The effect of salinity on the wind-driven circulation and the thermal structure of the upper ocean. J Phys Oceanogr, 34(9): 1949-1966

Gill A E. 1982. Atmosphere-Ocean Dynamics. Cambridge: Academic Press, 662

Hackert E, Ballabrera-Poy J, Busalacchi A J, et al. 2011. Impact of sea surface salinity assimilation on coupled forecasts in the tropic-al Pacific. J Geophys Res, 116(C5): C05009, doi: 10.1029/2010JC006708

Hosoda S, Ohira T, Nakamura T. 2008. A monthly mean dataset of global oceanic temperature and salinity derived from Argo float observations. JAMSTEC Rep Res Dev, 8: 47-59

Huang Boyin, Mehta V M. 2005. Response of the Pacific and Atlantic oceans to interannual variations in net atmospheric freshwater. J Geophys Res, 110(C8): C08008, doi: 10.1029/2004JC002830

Kessler W S, Taft B A. 1987. Dynamic heights and zonal geostrophic transports in the central tropical Pacific during 1979-84. J Phys Oceanogr, 17: 97-122

Maes C. 2000. Salinity variability in the equatorial Pacific Ocean dur-ing the 1993-98 period. Geophys Res Lett, 27(11): 1659-1662

Maes C. 2008. On the ocean salinity stratification observed at the eastern edge of the equatorial Pacific warm pool. J Geophys Res, 113(C3): C03027, doi: 10.1029/2007JC004297

Maes C, McPhaden M J, Behringer D. 2002. Signatures of salinity vari-ability in tropical Pacific Ocean dynamic height anomalies. J Geophys Res, 107(C12): SRF 13-1-SRF 13-13

Maes C, Picaut J, Belamari S. 2005. Importance of salinity barrier lay-er for the buildup of El Niño. J Climate, 18(1): 104-118

Murtugudde R, Busalacchi A J. 1998. Salinity effects in a tropical ocean model. J Geophys Res, 103(C2): 3283-3300

Picaut J, Ioualalen M, Menkes C, et al. 1996. Mechanism of the zonal displacements of the Pacific warm pool: Implications for ENSO. Science, 274(5292): 1486-1489

Press W H, Teukolsky S A, Vetterling W T, et al. 1992. Numerical Re-cipes in C: The Art of Scientific Computing. 2nd ed. Cambridge: Cambridge University Press, 994

Sato K, Suga T, Hanawa K. 2004. Barrier layer in the North Pacific subtropical gyre. Geophys Res Lett, 31(5): L05301, doi: 10.1029/2003GL018590

Sato K, Suga T, Hanawa K. 2006. Barrier layers in the subtropical gyres of the world's oceans. Geophys Res Lett, 33(8): L08603, doi: 10.1029/2005GL025631

Xie Shangping, Deser C, Vecchi G A, et al. 2010. Global warming pat-tern formation: Sea surface temperature and rainfall. J Climate, 23(4): 966-986

Zhang Ronghua, Busalacchi A J. 2009. Freshwater flux (FWF)-in-duced oceanic feedback in a hybrid coupled model of the trop-ical Pacific. J Climate, 22(4): 853-879

Zhang Ronghua, Wang Guihua, Chen Dake, et al. 2010. Interannual biases induced by freshwater flux and coupled feedback in the tropical Pacific. Mon Wea Rev, 138(5): 1715-1737

Zhang Ronghua, Zheng Fei, Zhu Jieshun, et al. 2012. Modulation of El Niño-Southern Oscillation by freshwater flux and salinity vari-ability in the Tropical Pacific. Adv Atmos Sci, 29(4): 647-660

Zheng Fei, Zhang Ronghua. 2012. Effects of interannual salinity vari-ability and freshwater flux forcing on the development of the 2007/08 La Ni.a event diagnosed from Argo and satellite data. Dynam Atmos Oceans, 57: 45-57

Zheng Fei, Zhang Ronghua, Zhu Jiang. 2014. Effects of interannual salinity variability on the barrier layer in the western-central equatorial Pacific: A diagnostic analysis from Argo. Adv Atmos Sci, 31(3): 532-542

Zheng Fei, Zhu Jiang. 2008. Balanced multivariate model errors of an intermediate coupled model for ensemble Kalman filter data assimilation. J Geophys Res, 113(C7): C07002, doi: 10.1029/2007JC004621

Zheng Fei, Zhu Jiang. 2010. Coupled assimilation for an intermedi-ated coupled ENSO prediction model. Ocean Dyn, 60(5): 1061-1073

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文章访问数: 1140
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doi: 10.1007/s13131-015-0663-2

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Effects of interannual salinity variability on the dynamic height in the western equatorial Pacific as diagnosed by Argo

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