Modeling land-surface characteristics under precipitation in a typical and region of China

被引:0
|
作者
Wang, S
Zhang, Q
Wei, GA
机构
[1] China Meterol Adm, Key Lab Arid Climat Change & Reduct Disaster, CMA, Inst Arid Meteorol, Lanzhou 730020, Peoples R China
[2] Lanzhou Univ, Coll Atmospher Sci, Lanzhou 730000, Peoples R China
[3] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, Lanzhou 730000, Peoples R China
来源
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION | 2006年 / 49卷 / 02期
关键词
arid region of Northwest China; land surface process; precipitation; albedo; roughness length; available energy;
D O I
暂无
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
A land-surface model is improved by using some new research results. Net radiation, upward longwave radiation, surface temperature, sensible heat, latent heat and temperature, specific humidity and wind speed in the ground layer under precipitation are simulated by using the data observed at Dunhuang during the "Field Experiment on Interaction between Land and Atmosphere in the Arid Region of Northwest China". The results show that the improvement is significant. The radiation flux and surface temperature are well simulated. The simulation of energy is also good. In addition, the simulation of the temperature and specific humidity in the ground layer by the new model is much better than that of the unimproved model.
引用
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页码:383 / 390
页数:8
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