NDLI: Testing and improving the performance of the Common Land Model: A case study for the Gobi landscape

Content Provider	Springer Nature Link
Author	Wang, Chao Wei, Zhigang Li, Zhenchao Xiao, Tiangui Wen, Xiaohang
Copyright Year	2017
Abstract	Land surface processes take place on the interface between the earth and atmosphere, exerting significant influences on the weather and climate. Correct modeling of these processes is important to numerical weather forecast and climate prediction. In order to obtain a more thorough understanding of the land surface processes over the Gobi landscape, we evaluated the performance of the Common Land Model (CoLM) at Dunhuang station in Gansu Province of China to determine whether the model formulation, driven by observational data, is capable of simulating surface fluxes over the underlying desert surface. In comparison with the enhanced observation data collected at Dunhuang station over the period 22–28 August 2008, the results showed that the surface albedo simulated by CoLM was larger than that in the observation, and the simulated surface temperature was lower than the observed. After the measured values were used to correct the surface albedo, the solar radiation absorbed by the ground surface was more consistent with the measurements. A new empirical relationship of the surface thermal exchange coefficient r $_{ah}$ was used to modify the thermal aerodynamic impedance. The simulated soil surface temperature became significantly closer to the observed value, and the simulated surface sensible heat as well as net radiative fluxes were also improved.
Starting Page	625
Ending Page	632
Page Count	8
File Format	PDF
ISSN	20956037
Journal	Journal of Meteorological Research
Volume Number	31
Issue Number	3
e-ISSN	21980934
Language	English
Publisher	The Chinese Meteorological Society
Publisher Date	2017-07-14
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	land surface model numerical simulation parameterization scheme Atmospheric Sciences Meteorology Geophysics and Environmental Physics Atmospheric Protection/Air Quality Control/Air Pollution
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Atmospheric Science

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