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大气科学  2003 

内蒙古奈曼流动沙丘下垫面湍流输送特征初步研究

DOI: 10.3878/j.issn.1006-9895.2003.03.09

Keywords: 流动沙丘,湍流方差,近地面层能量收支

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Abstract:

分析了2000年7月21日~8月10日在内蒙古奈曼流动沙丘下垫面取得的近地面层湍流及辐射观测资料,讨论了无量纲湍流方差与稳定度参数z/L的关系,发现无量纲速度分量方差及无量纲温度、湿度脉动方差在不稳定层结下,均满足莫宁-奥布霍夫相似理论;同时还讨论近地面层能量的收支.发现流动沙丘下垫面感热通量与地表热通量最大值分别为170Wm-2及100Wm-2;潜热通量通常小于50Wm-2;流动沙丘净辐射最大值为400Wm-2左右.(Hs+Hl),与(Rn-G)的比值在晴天白天平均值为0.78左右,流动沙丘下垫面近地面层能量不平衡现象存在,其原因有待进一步研究.

References

[1]  De Bruin,H. A. R.,W. Kohisiek, and J. M. Van Den Hink,A verification of some methods to determine the flux of momentum,sensible heat and water vapor using standard deviation and structure parameter of scalar meteorological quantities,Bound.-Layer Meteor.,1993,63,231~257.
[2]  Wyngaard,J. C., and O. R. Cote, The budgets of turbulent kinetic energy and temperature variance in the atmospheric surface layer,J. Atmos. Soc.,1971,28,190~201.
[3]  Hogstrom,U., and A. S. Semdman-Hogstrom, Turbulence mechanics at an agricultural site,Bound.-Layer Meteor.,1974,7,373~389.
[4]  李胜功、原茴芳信、何宗颖等,奈曼沙漠化对草地微气象特性影响的研究,大气科学,1994,18(6)758~763.
[5]  Christian Bernhofer and Voget Roland, Energy balance closure gaps-A methodical problem of eddy covariance measurements? Proceeding of the Conference ICB-ICUC\'99, Sydney, Australia, 8-12 Nov., 1999, 199~203.
[6]  Shin Miyazaki,Osukamoto,Ichiro Kaihostu,Tadashi Miyamoto et al., The energy imbalances observed in Tibetan Platesu and Monogolian Plateau,Proceedings of the Second Session of international Wordshop on TIPEX-GAME/Tibet,Kunming,China,July 20~22,2000,1~3.
[7]  Kim, J., and T. J. Choi et al., On measuring and modeling surface energy partitioning on the Tibetan Plateau, Proceedings of the 5th International Study Conference On GEWEX in Asia and GAME, Nagoya, Japan, 3~5, Oct. ,2001, 18~25.
[8]  朱震达,中国沙漠化研究的进展,中国沙漠,1989,9(1),1~13.
[9]  朱震达、刘恕,中国北方农牧交错沙漠化地区农业发展战略问题的研究,中国沙漠,1982,2(4),1~5.
[10]  Panofsky,H. A.,and J. A. Dutton,Atmospheric Turbulence,Newpork: John Wiley and Sons,1984,1~397.
[11]  刘树华、刘和平、洪钟祥等,我国草原下垫面低层大气湍流结构,大气科学,1996,20(3),378~383.
[12]  刘辉志、洪钟祥,青藏高原改则地区近地层湍流特征,大气科学,2000,24(3),289~300.
[13]  Panofsdy,H. A.,H. Tenekes,D. H. Lenschow et al.,The characteristics of turbulent velocity components in the surface layer under convective conditions,Bound.-Layer Meteor.,1977,11,355~361.
[14]  周明煜、徐祥德、卞林根等,青藏高原大气边界层观测分析与动力学研究,北京:气象出版社,2000,36~54.

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