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《中国科学D辑(英文版)》 1996-01
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Effect of the slightly inclined terrain on the stably stratified steady-state atmosphere at the lower part of atmospheric boundary layer in the Antarctic

ZHANG Yongping , LI Xingsheng , ZHOU Xiujiand BIAN Lingen (Chinese Academy of Meteorological Sciences, Beijing 100081, China)  
Under the assumptions that the ground surface is an unbound inclined rough plane and that the wind direction changes less than 20 degrees below z/h0.2, the universal function for the normalized shear over stably stratified atmosphere at lower part of atmospheric boundary layer (ABL) is derived. The universal function is the sum of the contributions of that over the horizontal terrain and that over the terrain slope. Using the laws of geostrophic drag and heat transfer over a slightly inclined terrain, the effect of inclined terrain on the stable atmosphere at lower part of ABL is studied under the conditions of east Antarctic plateau. The result shows that the effect of inclined terrain is generally above 25%. The result of 38 cases of the Mizuho station in 1980 shows that the effect of the inclined terrain is in the range of 27%-49%.
【Fund】: Project supported by Meteorological Science Foundation of China Meteorological Administration and National National Antarctic Key Project of China.
【CateGory Index】: P432
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