| 通用陆面模式CLM在东亚不同典型下垫面的验证试验 |
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| 引用本文： | 刘少锋,林朝晖.通用陆面模式CLM在东亚不同典型下垫面的验证试验[J].气候与环境研究,2005,10(3):684-699. |
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| 作者姓名： | 刘少锋 林朝晖 |
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| 作者单位： | 1. 中国科学院大气物理研究所国际气候与环境科学中心,北京,100029;中国科学院研究生院,北京,100039
2. 中国科学院大气物理研究所国际气候与环境科学中心,北京,100029 |
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| 基金项目： | 中国科学院知识创新方向性项目KZCX3-SW-221、国家自然科学基金资助项目40233027及创新团队国际合作伙伴计划项目"气候系统模式研发及应用研究" |
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| 摘 要： | 利用野外观测资料,考察了通用陆面过程模式(CLM)对东亚地区3种典型下垫面(高原稀疏植被下垫面、森林、水田)的模拟能力.验证结果表明,在高原稀疏植被下垫面,CLM模拟的地表气温跟实测较为接近,同时CLM还可以较好地模拟出土壤温度随时间和深度的变化特征,但模式模拟的地面温度的幅值跟观测相比显著偏小;对于能量通量而言,除感热通量外,CLM所模拟出的其它能量通量的变化均与观测实况比较一致.对于淮河流域的森林下垫面,CLM所模拟出陆气间的各能量通量均与实测较为接近,尤以夏季(8月份)的模拟性能最好.对于水田下垫面,CLM模式较好地模拟出了各能量通量的主要变化特征及其季节差异,如水田的净辐射以及潜热通量夏季最大,而感热通量则是秋季最大等.
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| 关 键 词： | 通用陆面过程模式 能量通量 高原稀疏植被下垫面 森林 水田 东亚区域 |
| 文章编号： | 1006-9585(2005)03-0684-16 |
| 收稿时间： | 08 10 2005 12:00AM |
| 修稿时间： | 08 19 2005 12:00AM |
Validation of Common Land Model Using Field Experiment Data over Typical Land Cover Types in East Asia |
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| LIU Shao-Feng and LIN Zhao-Hui.Validation of Common Land Model Using Field Experiment Data over Typical Land Cover Types in East Asia[J].Climatic and Environmental Research,2005,10(3):684-699. |
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| Authors: | LIU Shao-Feng and LIN Zhao-Hui |
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| Institution: | 1.International Center for Climate and Environment Sciences, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029; 2.Graduate School of the Chinese Academy of Sciences, Beijing 100039 |
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| Abstract: | The Common Land Model(CLM) has been validated by using the field experiment data over three typical land cover types(sparsely vegetated surface on the Tibetan Plateau,forest,paddy field) in East Asia.Comparison of the simulation results with the observations shows that over the sparsely vegetated surface on the Tibetan Plateau,the CLM can quite well reproduce the diurnal cycle of the observed surface air temperature,and the observed time evolution of soil temperature in different vertical layers;however,the observed maximum ground temperature is remarkably underestimated.Moreover,the CLM simulated diurnal cycle of surface energy fluxes agrees quite well with the observations,except for the sensible heat flux.It is suggested that the discrepancy for the simulation of sensible heat flux over the Tibetan Plateau may be ascribed both to the impropriate representation of the physical processes within the CLM and the uncertainties pertaining to the field observation.Over the forest in the Huaihe River basin,generally speaking,the CLM can quite well reproduce the observed surface energy fluxes in three different months(May,August and November),and the model performs best during summer season(August).Furthermore,CLM can also quite well reproduce the main observed features of the surface energy fluxes and their seasonal dependence over the paddy field,for instance,the net surface radiation and latent heat flux are the largest during summer season(August),and however,the sensible heat flux is the largest compared with other seasons. |
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| Keywords: | common land model energy flux sparsely vegetated surface on the Tibetan Plateau forest paddy field East Asia |
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