中文摘要：

通过引入中尺度对流运动对海表湍流通量的贡献,改进了大气环流模式GAMIL1.0的海气湍流通量参数化方案。利用1979年1月至2000年12月的观测海温资料驱动GAMIL1.0模式,研究了海气湍流通量参数化改进对大气环流年际变化模拟效果的影响。结果表明：采用改进的海气湍流通量参数化方案,模拟的热带海表湍流热通量得到增强,模式对热带降水年际变化的模拟能力得到明显提高,凝结潜热对大气的加热作用更趋合理,模式对冬季（DJF）北太平洋地区和夏季（JJA）南太平洋中纬度地区大气环流年际变化的模拟能力有显著提高,可以更好地模拟出冬季南方涛动、北太平洋涛动的年际变化和空间分布特征,特别是显著地改善了此前GAMIL1.0模式存在的模拟的南方涛动强度偏弱的问题。

英文摘要：

The parameterization scheme（GAMIL scheme） of air-sea turbulent fluxes in the GAMIL1.0 model is improved by considering the contribution of the mesoscale convection to the sea surface fluxes.The new parameterization scheme is named GAMIL_rev scheme.The interannual variability of general circulation is simulated by the GAMIL1.0 model with the original parameterization scheme（GAMIL scheme） and GAMIL_rev scheme of air-sea turbulent fluxes,where the model is driven by the observational SST data from January 1979 to December 2000.Results show that,using GAMIL_rev scheme,the simulated tropical sea surface turbulent heat fluxes are strengthened,and the simulating capability of interannual variability of precipitation in the tropics is significantly improved,where the condensation latent heat released by precipitation is simulated more reasonably.The reasonable heating significantly improves the simulations of the interannual variability of general circulation,especially over the North Pacific in winter（DJF） and the middle-latitude South Pacific in summer（JJA）.The interannual variability and spatial patterns of the Southern Oscillation（SO） and the North Pacific Oscillation in winter are represented much better by the GAMIL_rev scheme than by the GAMIL scheme.Especially,the weak intensity of SO simulated by the GAMIL1.0 model is significantly strengthened by considering the enhancement of sea surface fluxes contributed by the mesoscale convection.