Land-Air Interaction over Arid/Semi-arid Areas in China and Its Impact on the East Asian Summer Monsoon. Part I: Calibration of the Land Surface Model (BATS) Using Multicriteria Methods

被引:22
作者
Chen Wen [1 ]
Zhu Deqin [2 ]
Liu Huizhi [3 ]
Sun Shufen [1 ,2 ]
机构
[1] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing 100029, Peoples R China
[2] Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100190, Peoples R China
[3] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
land-air interaction; the arid and semi-arid areas; BATS; multicriteria method; UNCERTAINTY ESTIMATION; GLOBAL OPTIMIZATION; HYDROLOGIC-MODELS; OPTIMAL PARAMETER; EL-NINO; SIMULATIONS; CLIMATE; VEGETATION; CABAUW; SAHEL;
D O I
10.1007/s00376-009-8187-3
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
To improve the land surface simulation in the arid and semi-arid areas of northern China., the observational data from two field experiments in Dunhuang and Tongyu are used to optimize the parameters in the land surface model, BATS, through calibration with the rnulticriteria method. Sensitivity analysis to the parameters in Dunhuang and Tongyu indicates that different parameters need to be calibrated in two sites with different environmental and climate regimes. Comparison of observed sensible heat flux, latent heat flux, and ground surface temperature with the simulated ones shows the simulations with the optimized parameters have been substantially improved. Especially, the holistic simulations with the calibration of the parameter values are much closer to the observations in the arid region (Dunhuang), and the energy partition with the calibrated parameters can also be simulated well in the semi-arid region (Tongyu). Whole results demonstrate that the parameter calibration of the land surface model is important when the model is to be used to investigate the land-air interaction.
引用
收藏
页码:1088 / 1098
页数:11
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