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Numerical simulations of land surface physical processes and land-atmosphere interactions over oasis-desert/Gobi region

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Abstract

A land-surface physical process model was coupled with a mesoscale atmospheric model. This coupled model was then used to simulate the interactions between land and the atmosphere, including surface temperature, net radiation, sensible heat flux and latent heat flux over a desert/Gobi with an oasis in northwestern semiarid regions in China. Comparisons between observations and simulations were made over the oasis and the desert/Gobi, respectively. Both cold island effect and wet island effect, the so-called oasis effect, were observed and simulated. Lower temperature, higher specific humidity and weaker turbulent transfer were present over the oasis than the desert/Gobi. A subsidence occurred over the oasis, leading to a thermally-generated mesoscale circulation.

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Authors and Affiliations

  1. Department of Atmospheric Sciences, School of Physics, Peking University, Bei**g, 100871, China

    Liu ShuHua, Liu He**, Hu Yu, Liang FuMing & Wang JianHua

  2. Laboratory of Climate Research, National Climatic Center, China Meteorological Administration, Bei**g, 100081, China

    Liu ShuHua, Liu He**, Hu Yu, Zhang ChengYi, Liang FuMing & Wang JianHua

Authors
  1. Liu ShuHua
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  2. Liu He**
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  3. Hu Yu
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  4. Zhang ChengYi
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  5. Liang FuMing
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  6. Wang JianHua
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Correspondence to Liu ShuHua.

Additional information

Supported by the Climate Change Special program of China Meteorological Bureau (Grant No. CCSF-2005-2-QH29; CCSF2006-38) and the Research Fund for the Doctoral Program of Higher Education (Grant No. 20050001030) and the National Natural Science Foundation of China (Grant No. 4025004)

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Liu, S., Liu, H., Hu, Y. et al. Numerical simulations of land surface physical processes and land-atmosphere interactions over oasis-desert/Gobi region. SCI CHINA SER D 50, 290–295 (2007). https://doi.org/10.1007/s11430-007-2009-1

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  • DOI: https://doi.org/10.1007/s11430-007-2009-1

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