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ECMWF再分析日降雨量与CMAP候降雨量在中国境内的数据整合

DOI: 10.11867/j.issn.1001-8166.2000.04.0442, PP. 442-445

Keywords: 数据整合,中国日降雨量,ECMWF再分析数据,CMAP候降雨量

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Abstract:

将中国境内1980~1993年ECMWF再分析日降雨量和美国环境预报中心CMAP候降雨量按16种方案整合后,再与实测资料做相关分析得出粗略的质量评估;并应用旋转主成分分析结合复变量莫莱特小波变换分析方法就其在东亚季风区的空间模态和不同频率下变化的时间序列得出具体的质量评估。结果表明由最好的整合资料算出的6个旋转空间模态与实测资料比较除顺序有所改变外二者惊人地相似,不仅其14a日均降雨量和标准偏差借助遥感候降雨量较再分析数据大有改进(尤其在四川盆地),而且还保留了再分析日降雨量再现不同时间尺度下实测降雨量波动的能力。除周内波动有所不同外,与夏季风爆发和洪涝灾害关系密切的周际以上波动与实测资料大致相符或基本吻合。

References

[1]  Latif M. MPI for Meteorology Report Dynamics of Interdecadal Variability in Coupled Ocean-atmosphere Models[R].1997,239:75.
[2]  Cui M,Lian S,Yang D,et al. Coast sea level and Asian monsoon system: a downscaling exercise for Chinese coast. Chin J Oceanol Limnol, 1998, 16(2): 108~121.
[3]  Cui M, Feng M, Lian S. Evaluation of daily precipitation in China from ECMWF and NCEP reanalyses[A]. Proceedings of International Conference on the Variability and Predictability of the Asian Monsoon[C].北京:科学出版社,1998.72~75.
[4]  Cui M, Arpe K, Dümenil L. Variability and predictability of daily rainfall in China[A].Annual Report 1998 by LASG[C].1999. 240~253.
[5]  Horel D. A rotated principal component analysis of the interannual variability of the northern hemisphere 500 mb high field[J]. Monthly Weather Review, 1981, 109: 2 080~2 092.
[6]  Morlet G A, Fourgeau I, Giard D. Wave propagation and sampling theory[J]. Geophysics, 1982, 47, 203~236.
[7]  Marhrt L. Eddy asymmetry in the sheared heated boundary layer[J]. J Atmos Sci, 1991, 48: 472~492.
[8]  Kumar P, Foufoula-Georgiou E. A new look at rainfall fluctuations and scaling properties of spatial rainfall using orthogonal wavelets[J]. J Appl Meteorol, 1993, 32: 209~222.
[9]  Gamage N, Blumen W. Comparative analysis of low-level cold fronts:wavelet, fourier and empirical orthogonal function decomposition[J]. Mon Wea Rev, 1993, 121: 2 867~2 878.
[10]  叶笃正,黄荣辉.长江黄河流域旱涝规律和成因研究[M].济南:山东科学技术出版社,1996.p388.
[11]  李克让.中国近海及西北太平洋气候[M].北京:海洋出版社,1993.p640.

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