The upper-ocean response and adjustment to surface forcing in an ocean general circulation model Ⅰ.Interannual variability

RONG Xin-yao; YANG Xiu-qun

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Article Navigation > Haiyang Xuebao > 2004 > 26(2): 20-36

RONG Xin-yao, YANG Xiu-qun. The upper-ocean response and adjustment to surface forcing in an ocean general circulation model Ⅰ.Interannual variability[J]. Haiyang Xuebao, 2004, 26(2): 20-36.

Citation:

RONG Xin-yao, YANG Xiu-qun. The upper-ocean response and adjustment to surface forcing in an ocean general circulation model Ⅰ.Interannual variability[J]. Haiyang Xuebao, 2004, 26(2): 20-36.

RONG Xin-yao, YANG Xiu-qun. The upper-ocean response and adjustment to surface forcing in an ocean general circulation model Ⅰ.Interannual variability[J]. Haiyang Xuebao, 2004, 26(2): 20-36.

Citation:

RONG Xin-yao, YANG Xiu-qun. The upper-ocean response and adjustment to surface forcing in an ocean general circulation model Ⅰ.Interannual variability[J]. Haiyang Xuebao, 2004, 26(2): 20-36.

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The upper-ocean response and adjustment to surface forcing in an ocean general circulation model Ⅰ.Interannual variability

Department of Atmospheric Sciences, Nanjing University, Nanjing 210093, China

Received Date: 2003-05-24
Rev Recd Date: 2003-07-08

Abstract

Abstract

Interannual variabilities of the temperature and circulation of global ocean, particularly of the tropical Pacific ocean, as well as the controlling mechanisms of ENSO evolution are investigated by a high resolution ocean general circulation model forced with COADS 1945~1993 monthly mean data.It was found that quite realistic interannual behaviors were reproduced well with the model.In the tropical Indian Ocean, the ENSO related basinwide warming/cooling mode and the dipole mode are successfully simulated.And the model also successfully simulates a ENSO-like mode of the SST variations in the tropical Atlantic on interannual time scale.In the tropical Pacific Ocean, the SST interannual variances are significantly dominated by ENSO variability, and the circulation also exhibits a mass cycle inter annual anomalies associated with ENSO, i.e., the mass cycle tends to weaken/intensify several months before a warm/cold event, among which the phase of SEC anomaly leads Nino 3 index to approx imate 5 months.The equatorial upwelling firstly appears on the surface 4 months before the mature phase of ENSO and subsequently spreads to the deep, an eastern propagation of EUC anomaly was found near 180° with its phase leads Nino3 index to 3 months.The eastern propagation of subsurface ocean temperature anomalies along equator was found closely related to the evolution of ENSO cycle, the "delayed oscillator" mode is the controlling mode of the model ENSO events.
- ENSO,
- interannual variability,
- dipole mode,
- OGCM

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References(35)

References

PHILANDER S G H. El Niño, La Nina, and the Southern Oscillation[M]. San Diego: Academic Press, 1990. 293.

SHUKLA J, WALLACE J M. Numerical simulation of the atmospheric response to equatorial Pacific sea surface temperature anomalies[J]. J Atmos Sci, 1983, 40:1 613-1 630.

PAN Y H, OORT A. Global climate variations connected with sea surface temperature anomalies in the eastern equatorial Pacific Ocean for the 1958～73 period[J]. Mon Wea Rev, 1983, 111:1 244-1 258.

HUANG Rong-hui, WU Yi-fang. The influence of ENSO on the summer climate change in China and its mechanisms[J].Adv Atmos Sci, 1989, 6: 21-32.

陈烈庭.东太平洋赤道地区海水温度异常对热带大气环流及我国汛期降水的影响[J].大气科学,1977,(1):1-12.

BJERKNES J. A possible response of the atmospheric Hadley circulation to equatorial anomalies of ocean temperature[J].Tellus, 1966, 18: 820-829.

WYRTKI K. El Niño——The dynamics response of the equatorial Pacific Ocean to atmospheric forcing[J]. J Phys Oceanogr, 1975, 5: 572-584.

RASMUSSON E M, CARPENTER T H. Variations in tropical sea surface temperature and surface wind fields associated with the Southern Oscillation-El Niño[J]. Mon Wea Rev, 1982, 110: 354-384.

ZEBIAK S E, CANE M A. A model El Niño-southern Oscillation[J]. Mon Wea Rev, 1987, 115:2 262-2 278.

MCPHADEN M J, YU X. Equatorial waves and the 1997-98 El Niño[J]. Geophys Res Lett, 1999, 26:2 961-2 964.

CHEN Ying-quei, BATTISTI D S, SARACHIK E S. A new ocean model for studying the tropical oceanic aspects of ENSO[J]. J Phy Oceanogr, 1995, 25, (9): 2 065-2 089.

SHU Liang-hua, ALLAN J C. Using an ocean model to examine ENSO dynamics[J]. J Phy Oceanogr, 2002, 32 (3):903-923.

FEDOROV A V, PHILANDER S G. Is El Niño changing?[J]. Science, 2000, 288:1 997-2 002.

WANG B. Interdecadal changes in El Niño onset in the last four decades[J]. J Climate, 1995, 8: 267-285.

NEELIN J D, LATIF M, ALLAART M A F, et al. Tropical air-sea interaction in general circulation models[J]. Climate Dyn, 1992, 7: 73-104.

DELECLUSE P, DAVEY M K, KITAMURA Y, et al. Coupled general circulation modeling of the tropical Pacific[J].J Geophys Res, 1998, 103(C7): 1 4357-1 4373.

MECHOSO C R, ROBERTSON A W, BARTH N, et al. The seasonal cycle over the tropical Pacific in coupled oceanatmosphere general circulation models[J]. Mon Wea Rea, 1995, 123:2 825-2 838.

DA SILVA A M, YOUNG C C, LEVITUS S. Atlas of Surface Marine Data 1994[B]. NOAA Atlas NESDIS 6-8[Z]. U.S. Department of Commerce, NOAA, NESDIS, 1994. 912.

PACANOWSKI R C. MOM2 Documentation[B]. GFDL Ocean Technical Report 3.2[R]. 1996. 329.

HANEY R L. Surface thermal boundary condition for ocean circulation models[J]. J Phy Oceanogr, 1971, 1: 241-248.

DEACON E L, WEBB E K. Interchange of properties between sea and air[A]. The Sea: Ideas and Observations: Vol 1[M]. New York: Wiley(Interscience), 1962. 49-87.

LEVITUS S. Climatological Atlas of the World Ocean[B]. NOAA Professional Paper(13)[C]. U. S. Department of Commerce, 1982. 173.

LEVITUS S, BOYER T P. World Ocean Atlas 1994: Temperatttre and Salinity[Z]. U. S. Department of Commerce,Washington, D C, 1994.

RAYNER N A, HORTON E B, PARKER D E, et al.. Version 2.2 of the global sea-ice and sea surface temperature data set, 1903-1994[J]. Clim Res Tech Note, 1996, 74: 1-21.

WALLACE J M, RASMUSSON E M, MITCHELL T P, et al. On the structure and evolution of ENSO——related climate variability in the tropical Pacific: Lessons from TOGA[J]. Journal of Geophysical Research, 1998, 103:14 241-14 259.

LATIF M, DOMMENGET D, DIMA M. The role of Indian Ocean sea surface temperature in forcing East African climate anomalies[B]. Max-Planck-Institut Fur Meteorologie Report:No.276[R]. 276: 12.

SAJI N H, GOSWAMI B N, VINAYACHANDRAN p N, et al. A dipole mode in the tropical Indian Ocean[J]. Nature,1999, 401: 360-363.

WEBSTER P J, MOORE A M, LOSCHNIGG J p, et al. Coupled ocean-atmosphere dynamics in the Indian Ocean during 1997-98[J]. Nature, 1999, 401: 356-360.

ZEBIAK S E. Air-sea interaction in the equatorial Atlantic region[J]. J Climate, 1993, 6: 1 567-1 586.

CARTON J A, HUANG B. Warm events in the tropical Atlantic[J]. J Phys Oceanogr, 1994, 24: 888-903.

HUANG Bo-yin, LIU Zhang-yu. An OGCM simulation of seasonal and interannual variabilities in the surface-layer Pacific of the equatorial band[J]. Adv Atmos Sci, 2002, 19(2): 219-234.

FASULLO J, WEBSTER P J. Warm pool SST variability in relation to the surface energy balance[J]. J Climate, 1999,12:1 292-1 305.

SWENSON M S, HANSEN D V. Tropical Pacific Ocean mixed layer heat budget: the Pacific cold tongue[J]. J Phy Oceanogr, 1999, 29.. 69-81.

WANG W, MCPHADEN M J. The surface-layer heat balance in the equatorial Pacific Ocean. Part I. Mean seasonal cycle[J]. J Phy Oceanogr, 1999, 29:1 812-1 831.

WANG W, MCPHADEN M J. The surface-layer heat balance in the equatorial Pacific Ocean. Part Ⅱ. Interannual variability[J]. J Phy Oceanogr, 2000, 30(11): 2 989-3 008.

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