The application and comparison of several flux profile relations in CoLM
刊物全称
Sciences in Cold and Arid Regions
论文作者
ZhenChao Li,ZhiGang Wei,ZhiYuan Zheng,Hong Wei,Hui Liu
发表年度
2014
刊物类别
其他
卷
6
期
1
页码
73–80
通讯作者
Li, ZC
请求全文
关键词
CoLM, Loess Plateau, flux profile relations, comparison
摘要
This paper discusses the important role that flux profile relations play in momentum flux,sensible heat flux,and latent heat flux simulations in CoLM(Common Land Model)and compares the application of three flux profile relation schemes in CoLM by means of the Loess Plateau Land-Atmosphere Interaction Pilot Experiment(LOPEX)of 2005.It reveals that the results simulated by the model barely changed in the original flux profile schemes of the models after eliminating the very stable condition and the very unstable condition,and there were only tiny changes in numerical values.This indicates that the corrected terms added to fm(ζm),fh(ζh)were very tiny and can be ignored under very stable and very unstable circumstances.According to a comparison of the three flux profile relations,the simulation results were basically coherent by using any CoLM:the correlation coefficient of the simulation value and the observed value was 0.89,and this bears on the coherence with the numerical procedures for the flux profile relations under unstable circumstances.The simulation results were improved considerably by utilizing the Lobocki flux profile schemes,which numerical procedures under unstable circumstances differed significantly from other three flux profile schemes;in this case the correlation coefficient of the value of simulation and the observed value became 0.95.In the next iteration of this study,it will be of great importance for the development of the land surface process model to continue experimenting with the application of some novel flux profile schemes in the land surface process models in typical regions.
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