A REGIONAL SCALE CLIMATIC MODEL OVER THE CHANGJIANG DELTA:DEVELOPMENT, EVALUATION AND ANALYSIS

Liu Hongli; Li Weiliang; Zhou Xiuji; Qin Yu

Vol.16, NO.1, 2005

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2005 > 16(1): 24-34

Liu Hongli, Li Weiliang, Zhou Xiuji, et al. A regional scale climatic model over the Changjiang Delta:Development, evaluation and analysis. J Appl Meteor Sci, 2005, 16(1): 24-34.

Citation:

Liu Hongli, Li Weiliang, Zhou Xiuji, et al. A regional scale climatic model over the Changjiang Delta:Development, evaluation and analysis. J Appl Meteor Sci, 2005, 16(1): 24-34.

Liu Hongli, Li Weiliang, Zhou Xiuji, et al. A regional scale climatic model over the Changjiang Delta:Development, evaluation and analysis. J Appl Meteor Sci, 2005, 16(1): 24-34.

Citation:

Liu Hongli, Li Weiliang, Zhou Xiuji, et al. A regional scale climatic model over the Changjiang Delta:Development, evaluation and analysis. J Appl Meteor Sci, 2005, 16(1): 24-34.

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A REGIONAL SCALE CLIMATIC MODEL OVER THE CHANGJIANG DELTA:DEVELOPMENT, EVALUATION AND ANALYSIS

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

Received Date: 2003-01-28
Rev Recd Date: 2004-03-01
Publish Date: 2005-02-28

Abstract

Abstract

A new regional climatic model was developed and proof-tested by simulating the frontal rainfall, cyclonic rain and shower.The effect of different physical processes and different time step in the model was analyzed in order to choosing the approopriate experimental project. Using this model simulated the climatic effect of the change of land-use in Changjiang Delta area.Result s show that vegetation reducing and urban extending are main causes of the regional climate change.The range of seasonal temperature would increase and the humidity would decrease if the vegetation reduced.With the urban area extending the urban heat island effect would be intense also.
- Changjiang Delta;
- Numerical model;
- Land-use

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References(12)

Figures and Tables

图 1 三重嵌套格式示意图

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图 2 6月30日08 :00至7月1日08:00 24 h降水量

(a) 模拟结果, (b) 实况 (单位:mm)

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图 3 7月1日08 :00 850 hPa位势高度场和温度场模拟结果 (a) 与实况 (b)

(实线:位势高度, 单位:dagpm; 虚线:气温, 单位:℃)

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图 4 8月7日08:00 24 h降水量模拟结果 (a) 与实况 (b) 的比较 (单位:mm)

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图 5 24 h 850 hPa位势高度场 (实线, 单位:dagpm) 和温度场 (虚线, 单位:℃) 模拟结果 (a) 与实况 (b)

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图 6 6月30日08 :00至7月1日08:00 24 h降水量模拟结果 (使用CCM2辐射方案)

(实线, 单位:dagpm) 和温度场

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图 7 在 (45, 21, 1) 网格上各积分步长模拟的温度变化 (a) 和动能变化 (b)(单位:s)

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图 8 敏感性试验1与控制试验的地面气温偏差 (单位:℃)

(a)1月, (b)4月, (c)7月, (d)10月

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图 9 敏感性试验1与控制试验的地面风矢量偏差 (单位:m/ s)

(a)1月, (b)4月, (c)7月, (d)10月

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图 10 敏感性试验2与控制试验的地面气温偏差 (单位:℃)

(a)1月, (b)4月, (c)7月, (d)10月

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图 11 敏感性试验2与控制试验的地面风矢量偏差 (单位:℃)

(a)1月, (b)4月, (c)7月, (d)10月

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References

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