一个重构的 153 年热带太平洋次表层上卷海温资料

doi:10.11978/j.issn.1009-5470.2012.01.001

Abstract

Abstract: The temperature of subsurface water entrained into the mixed layer ( T _e) is very important to improve El Niño-Southern Oscillation (ENSO ) simulations and modulated ENSO decadal variability. Based on an intermediate coupled model (ICM) and nudging data assimilation method, a long-term monthly-mean T_e dataset is reconstructed over the tropical Pacific for the period of 1856 - 2008. The verification results show that the reconstructed T_e data have high correlations and small root mean square (RMS) errors with three analysis T_e dataset in the last 50 years. Also, the simulated sea surface temperature (SST) anomalies from the ICM, forced by the reconstructed T_e dataset, can simulate realistic interannual and decadal variability of ENSO very well. This indicates that the reconstructed T_e dataset is useful for climate research, especially for the large-scale low frequency or decadal variability of ENSO .

Key words: reconstructed subsurface entrainment temperature, intermediate coupled model, El Niñ, o-Southern Oscillation

CLC Number:

P731

DU Juan,ZHENG Fei,ZHU Jiang. A reconstructed subsurface entrainment temperature data over the tropical Pacific for the past 153y[J].Journal of Tropical Oceanography, 2012, 31(1): 1-9.

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A reconstructed subsurface entrainment temperature data over the tropical Pacific for the past 153y

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