IMPACTOF HETEROGENEOUS LAND SURFACEON MODELS
AND ITS PRELIMINARY PARAMETERIZATION

Zhang Zhengqiu; Zhou Xiuji; Li Weiliang

Vol.13, NO.6, 2002

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2002 > 13(6): 641-649

Zhang Zhengqiu, Zhou Xiuji, Li Weiliang. Impactof heterogeneous land surfaceon modelsand its preliminary parameterization. J Appl Meteor Sci, 2002, 13(6): 641-649.

Citation:

Zhang Zhengqiu, Zhou Xiuji, Li Weiliang. Impactof heterogeneous land surfaceon modelsand its preliminary parameterization. J Appl Meteor Sci, 2002, 13(6): 641-649.

Zhang Zhengqiu, Zhou Xiuji, Li Weiliang. Impactof heterogeneous land surfaceon modelsand its preliminary parameterization. J Appl Meteor Sci, 2002, 13(6): 641-649.

Citation:

Zhang Zhengqiu, Zhou Xiuji, Li Weiliang. Impactof heterogeneous land surfaceon modelsand its preliminary parameterization. J Appl Meteor Sci, 2002, 13(6): 641-649.

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IMPACTOF HETEROGENEOUS LAND SURFACEON MODELS AND ITS PRELIMINARY PARAMETERIZATION

1.
Atmospheric Sciences Department , Peking University , Beijing 100871
2.
Chinese Academy of Meteorological Sciences, Beijing 100081

Received Date: 2001-10-11
Rev Recd Date: 2002-01-21
Publish Date: 2002-12-01

Abstract

Abstract

To improve the parameterization of land surface processes, a preliminary analysis of the impact of subgrid land surface heterogeneity on model results is carried out. The scheme of land surface process parameterization is presented by using an averaging method. The impact of heterogeneity is discussed. Numerical results show that the heterogeneity could lead a discrepancy between model results and reality, and the averaging method can be applied to the heterogeneous land surface
- Land surface process;
- Subgrid scale;
- Heterogeneity;
- Parameterization

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References(7)

Figures and Tables

图 1 中国地区1997 年6 月平均网格元粗糙度(a) 及其均方差(b)(单位:10^-1m)

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图 2 CDN 差值分布:(a)实际计算与模式计算的差值； (b)由式(15)计算的结果(单位:10^-4)

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图 3 网络点上地表温度次网络尺度非均匀性分布对模式计算结果的影响

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表 1 地表温度在随机范围为0～20 K内某网格点上各次网格上T_g 、R_s 和H_s

表 2 中国地区各区域中性曳力系数及其计算误差对比分析表

References

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[5]	Zhang Zhengqiu, Li Weiliang. Entropy and parameterization of non-uniform distribution of precipitation, Acta Meteor. Sinica, 1998, 12(3): 335-344.
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[7]	Zhang Zhengqiu, Zhou Xiuji, Li Weiliang, et al. Characteristics of vegetation cover, roughness and albedo distribution over China. Acta Meteor. Sinica, 2001, 15(1): 86-94. https://www.researchgate.net/publication/289104756_Characteristics_of_vegetation_cover_roughness_and_albedo_distribution_over_China