| Numerical simulations of land surface physical processes and land-atmosphere interactions over oasis-desert/Gobi region |
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| 作者姓名： | LIU ShuHua ? LIU HePing HU Yu ZHANG ChengYi LIANG FuMing & WANG JianHua |
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| 作者单位： | LIU ShuHua1，2?，LIU HePing1，2，HU Yu1，2，ZHANG ChengYi2，LIANG FuMing1，2 & WANG JianHua1，2 1 Department of Atmospheric Sciences，School of Physics，Peking University，Beijing 100871，China; 2 Laboratory of Climate Research，National Climatic Center，China Meteorological Administration，Beijing 100081，China |
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| 基金项目： | 高等学校博士学科点专项科研项目;国家自然科学基金 |
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| 摘 要： | A land-surface physical process model was coupled with a mesoscale atmospheric model. This cou- pled 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 ef- fect, the so-called oasis effect, were observed and simulated. Lower temperature, higher specific hu- midity 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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| 收稿时间： | 30 November 2005 |
| 修稿时间： | 23 March 2006 |
Numerical simulations of land surface physical processes and land-atmosphere interactions over oasis-desert/Gobi region |
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| Liu?ShuHua,Liu?HePing,Hu?Yu,Zhang?ChengYi,Liang?FuMing,Wang?JianHua.Numerical simulations of land surface physical processes and land-atmosphere interactions over oasis-desert/Gobi region[J].Science in China(Earth Sciences),2007,50(2):290-295. |
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| Authors: | Liu ShuHua Liu HePing Hu Yu Zhang ChengYi Liang FuMing Wang JianHua |
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| Institution: | 1. Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871, China;Laboratory of Climate Research, National Climatic Center, China Meteorological Administration, Beijing 100081, China
2. Laboratory of Climate Research, National Climatic Center, China Meteorological Administration, Beijing 100081, China |
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| Abstract: | A land-surface physical process model was coupled with a mesoscale atmospheric model. This cou- pled 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 ef- fect, the so-called oasis effect, were observed and simulated. Lower temperature, higher specific hu- midity 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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| Keywords: | desert/Gobi and oasis land surface physical process land-atmosphere interactions oasis effect numerical simulation |
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