| 干旱、半干旱地区蒸散过程的模拟研究 |
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| 引用本文： | 刘树华,于飞,刘和平,张称意,梁福明,王建华. 干旱、半干旱地区蒸散过程的模拟研究[J]. 北京大学学报(自然科学版), 2007, 43(3): 359-366 |
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| 作者姓名： | 刘树华 于飞 刘和平 张称意 梁福明 王建华 |
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| 作者单位： | 北京大学物理学院大气科学系,北京,100871; 国家气候中心中国气象局气候研究开放实验室,北京,100081;通讯联系人,E-mail: Lshuhua@pku.edu.cn |
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| 基金项目： | 中国气象局资助项目，高等学校博士学科点专项科研项目，国家自然科学基金 |
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| 摘 要： | 利用建立的土壤, 植被, 大气系统水分散失耦合模式,研究了一定植被覆盖下区域近地面层的水分蒸散过程。模式对土壤水分传导和恢复过程的参数化引入了一些改进。利用此模式模拟了黑河实验(HEIFE)中1991-08-13—17日张掖观测站所在位置的能量通量和近地面温湿度的变化,得到了与观测值相一致的结果,合理地再现了此阶段内蒸散过程的变化趋势。此模式能比较有效地模拟区域复杂下垫面与大气边界层的相互作用,对于区域气候和生态效应的研究有一定的帮助。
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| 关 键 词： | 土壤-植被-大气相互作用 蒸散过程 陆面过程模式 黑河实验 |
| 收稿时间： | 2006-05-31 |
| 修稿时间： | 2006-05-312006-06-09 |
Study of Evapotranspiration Processes Simulation in Arid and Semi-Arid Regions |
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| LIU Shuhua,YU Fei,LIU Heping,ZHANG Chenyi,LIANG Fuming,WANG Jianhua. Study of Evapotranspiration Processes Simulation in Arid and Semi-Arid Regions[J]. Acta Scientiarum Naturalium Universitatis Pekinensis, 2007, 43(3): 359-366 |
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| Authors: | LIU Shuhua YU Fei LIU Heping ZHANG Chenyi LIANG Fuming WANG Jianhua |
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| Affiliation: | Department of Atmospheric Science, School of Physics, Peking University, Beijing, 100871; Laboratory for Climate Research, National Climate Center, China Meteorological Administration, Beijing, 100081; Corresponding Author, E-mail: Lshuhua@pku.edu.cn |
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| Abstract: | An integrated and flexible numerical model has been established to simulate and study the evaporation, transpiration and evapotranspiration mechanism of moisture on land-surface with complex vegetative cover. To better simulate this process, the authors apply some reasonable modifications to the parameterlzation of edaphic process too. The model is used to simulate the process of Zhangye station during IOP2 of HEIFE, and the results are generally in good agreement with observations. It indicates that the model developed can be used to study the interaction between land surface and atmospheric boundary layer over arid and semi-arid regions. Thus it can be used on evaluating the environment and shaping measures for sustainable development. |
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| Keywords: | soil-vegetation-atmosphere interaction evaporation and transpiration and evapotranspiration process land surface process model HEIFE |
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