| 陆面过程模型对下垫面参数动态变化的敏感性分析 |
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| 引用本文： | 蔡福,周广胜,李荣平,明惠青.陆面过程模型对下垫面参数动态变化的敏感性分析[J].地球科学进展,2011,26(3):300-310. |
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| 作者姓名： | 蔡福 周广胜 李荣平 明惠青 |
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| 作者单位： | 蔡福,Cai Fu(中国气象科学研究院,北京,100081;南京信息工程大学,江苏,南京,210044;中国气象局沈阳大气环境研究所,辽宁,沈阳,110016);周广胜,Zhou Guangsheng(中国气象科学研究院,北京,100081);李荣平,Li Rongping(中国气象局沈阳大气环境研究所,辽宁,沈阳,110016);明惠青,Ming Huiqing(辽宁省气象科技服务中心,辽宁,沈阳,110016) |
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| 基金项目： | 国家杰出青年科学基金项目，国家重点基础研究发展计划项目 |
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| 摘 要： | 利用2006年锦州玉米农田生态系统野外观测站动态连续的通量、气象及生物因子观测数据,分析了BATSl e陆面模型对动态的粗糙度(Z0)、叶面积指数(LAI)、植被履盖度(FVEG)及反照率(α)变化的敏感性.结果表明:Z0的动态变化对表层土壤温度(SST)和感热(SH)的模拟有一定影响,主要发生在玉米农田从裸土向有植被...
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| 关 键 词： | 参数动态变化 陆面过程 敏感性 |
Sensitivity of Land Surfaces Model to Dynamic Land Surface Parameters |
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| Cai Fu,Zhou Guangsheng,Li Rongping,Ming Huiqing.Sensitivity of Land Surfaces Model to Dynamic Land Surface Parameters[J].Advance in Earth Sciences,2011,26(3):300-310. |
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| Authors: | Cai Fu Zhou Guangsheng Li Rongping Ming Huiqing |
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| Affiliation: | 1.Chinese Academy of Meteorological Sciences, Beijing100081,China; ;
2. Nanjing University of Information Science and Technology, Nanjing210044, China；3.Institute of Atmospheric Environment, China Meteorological Administration，Shenyang110016，China；;
4.Liaoning Province Meteorological Science and Technology Service Center, Shenyang110016,China |
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| Abstract: | Using continuous flux data,meteorological data and biological data in 2006(from June 1 to August 9) from Jinzhou agricultural ecosystem research station,based on BATS1e model,the sensitivity of land surface model to dynamic assignment of roughness(Z0),leaf area index(LAI) and fractional vegetation coverage(FVEG) and albedo(α) were investigated.The results show that dynamic assignment of Z0 has effect on simulating surface soil temperature(SST) and sensible heat flux(SH) especially on the time when maize field surface covered changes from bare soil to vegetation.Dynamic LAI plays important role in improving the simulation of SST,net absorbed solar energy flux(Frs),SH and surface soil water content(SWC),at the same time affects simulation of latent heat flux(LE).Dynamic FVEG affects obviously simulations of all above-mentioned variables and shows greater sensitivity when they are smaller.Also,dynamical change of α can affect simulations of SST,LE and SH,especially for the latter.Furthermore,the interactions among different dynamic parameters are ignored by the model.The improvement of single land surface parameter might be helpful for simulating one or multivariate but not for all variables.In short,it is necessary to set up a parameterization scheme with the interactions of different land surface parameters. |
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| Keywords: | Dynamic change of parameters Land surfaces processing Sensibility |
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