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大气科学  2002 

初、边值条件对区域气候模拟的影响

DOI: 10.3878/j.issn.1006-9895.2002.06.08

Keywords: 区域气候模拟,初、边值条件,敏感性研究

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Abstract:

利用区域气候模式(RegCM2)对1998年夏季风气候进行了模拟,并就初、边值条件对模拟结果的影响情况进行了讨论,结果表明:该模式可以较好地模拟出月际尺度的气候变化,但对降水异常的模拟还需作进一步完善.通过在几个季节采用不同初始场进行的数值模拟发现,从春季开始的积分其结果对初始场的敏感性较高,初始场的差别会对后期模拟产生明显影响.相对来说,从冬季开始的积分,其对初始场的依赖性较小,初始场的差别会在积分过程中逐渐减小,因而在利用RegCM2进行区域气候模拟时宜从冬季开始.另外,通过对采用不同侧边界嵌套方案的模拟效果进行简单讨论,发现当采用较少的缓冲区(5圈)时,海绵边界对温度、比湿及位势高度的模拟要比指数松弛及流入流出边界好,降水的模拟也要比其他方案好一些,但对风场的模拟则不如指数松弛方案.

References

[1]  Dickinson, R. E., R. M. Errico, F. Giorgi and G. T. Bates, A regional climate model for the western United States, Climate Change, 1989, 15, 383 ~ 422.
[2]  魏和林、符淙斌、王维强,区域气候模式侧边界的处理对东亚夏季风降水模拟的影响,大气科学,1998,22(5),779~790.
[3]  Giorgi, F. and G. T. Bates, On the climatological skill of a regional model over complex terrain, Mon. Wea.Rev., 1989, 117, 2325~2347.
[4]  Giorgi, F., On the simulation of regional climate using a limited area model nested in a general circulation model, J. Climate, 1990, 3, 941~ 963.
[5]  Dickinson, R. E., A. Henderson-Sellers and P. Kennedy, Biosphere atmosphere transfer scheme (BATS) version le as coupled to the NCAR Community Climate Model, NCAR Tech. Note, 1993, NCAR / TN-387+STR,Natl. Cent. for Atmos. Res. Boulder, Colorado.
[6]  Giorgi, F. et al., Development of a second-generation regional climate model (RegCM2). Part Ⅰ: Boundary-layer and radiative transfer processes, Mon. Wea. Rev., 1993, 121, 2794~ 2813.
[7]  Giorgi, F., M. R. Marinucci, G. T. Bates, and D. C. Gerardo, Development of a second-generation regional climate model (RegCM2). Part Ⅱ: Convective processes and assimilation of lateral boundary conditions, Mon.Wea. Rev., 1993, 121, 2814~2831.
[8]  赵宗慈、罗勇,区域气候模式在东亚地区的应用研究--垂直分辨率与侧边界对夏季季风降水影响研究,大气科学,1999,23(5),522~532
[9]  Madala, R. V., Efficient time integration schemes for atmosphere and ocean models, in: Finite-Difference Techniques for Vectorized Fluid Dynamics Calculation, 1981, Springer-Verlag, 56~ 74.
[10]  Briegleb, B. P., Delta-Eddington approximation for solar radiation in the NCAR Community Climate Model,J. Geophys. Res., 1992, 97, 7603~7612.
[11]  Slingo, J. M., A cloud parameterization scheme Derived from GATE data for use with a numerical model,Quart. J. Roy. Meteor. Soc., 1980, 106, 747~770.
[12]  Kiehl, J. T., J. J. Hack, G. B. Bonan et al., Description of the NCAR Community Climate Model(CCM3),NCAR Tech. Note, 1996, NCAR / TN-420+STR, 152pp.
[13]  Zhang, G. J. and N. A. McFarlane, Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian Climate Centre general cirsulation model, Atmos. Ocean, 1995, 33, 407~ 446.
[14]  Giorgi, F. and C. Shields, Tests of precipitation parameterizations available in the latesl version of the NCAR Regional Climate Model(RegCM2)over the continental U nited States, J. Geophys. Res., 1999, 104, 6353 ~ 6375.
[15]  符淙斌、魏和林、陈明等,区域气候模式对中国东部季风雨带演变的模拟,大气科学,1998,22(4),522~534.
[16]  Dai, A., F. Giorgi and K. Trenberth, Observed and model-simulated diurnal cycles of precipitation over the contiguous United States, J. Geophys. Res., 1999, 104, 6377~6403.
[17]  Mearns, L. O., F. Giorgi, C. Shields et al., Analysis of the variability of daily precipitation in a nested modeling experiment: Comparison with observations and 2 × CO2 results, Glob. Planet. Change, 1995, 10, 55~78.
[18]  刘永强、丁一汇、赵宗慈,1991年江淮特大异常降水的区域气候模拟,赵宗慈主编,中国短期气候预测的模式研究,北京:气象出版社,1996,106~120
[19]  范新岗、张红亮、丑纪范,气候系统可预报性的全局研究,气象学报,1999,57(2),190~198.
[20]  周家斌,短期气候变化的预测方法,叶笃正等主编,当代气候研究,北京:气象出版社,1991,164~180
[21]  Xue, Y., The impact of desertification in the Mongolian and the Inner Mongolian grassland on the regional Climate, J. Climate, 1996, 9, 2172~ 2189.
[22]  Anthes R. A., Hsie Y. and Kuo Y. H., Description of the PENN States/NCAR Mesoscale model version 4(mm4), NCAR Tech. Note, 1987, NCAR/TN-282+STR, 66pp.
[23]  G iorgi, F., and M. R. Marinucci, An investigation of the sensitivity of simulated precipitation to model resolution and its implications for climate studies, Mon. Wea. Rev., 1996, 124, 148~ 166.

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