A Study on Atmospheric Thermal Boundary Layer Structure in Extremely Arid Desert and Gobi Region on the Clear Day in Summer
Received date: 2007-09-20
Revised date: 2007-10-20
Online published: 2007-11-10
Vertical structure characteristics of mainly physics factor such as potential temperature、wind speed and specific humidity etc., using field observation data in Dunhuang, Gansu Province, the diurnal rule of surface thermal and dynamical characteristics in surface layer is analyzed in the extremely arid desert and gobi region. the special thermal boundary layer structure in summer is found. In the nighttime, the lowest ground inversion layer exceeds the height of 900 m and maximum that reaches the 1 750 m. The residual layer can touch the height about the 4 000 m.The depth of the superadiabatic lapse layer for potential temperature and the depth of the mixed layer on it are 1 000 m and 3 700 m in the daytime, respectively, which are high. There is entrainment layer that the depth is more than 450m on the top of the mixed layer. The mixed layer develops rapidly when convective boundary layer product residual layer. The vertical profiles of wind speed and specific humidity confirm well the particular structure of atmospheric thermal boundary layer. Surface thermal and dynamical characteristics supply the physical support for the particular atmospheric thermal boundary layer structure.
ZHANG Qiang, ZHAO Ying-dong, WANG Sheng, MA Fang . A Study on Atmospheric Thermal Boundary Layer Structure in Extremely Arid Desert and Gobi Region on the Clear Day in Summer[J]. Advances in Earth Science, 2007 , 22(11) : 1150 -1159 . DOI: 10.11867/j.issn.1001-8166.2007.11.1150
[1]Stull R B.An Introduction to Boundary Layer Meteorology[M]．Dordrecht：Kluwer Academic Publisher,1988.
[2]Zhao Ming, Miao Manqian, Wang Yanchang.Boundary Meteorology[M].Beijing: Meteorology Press, 1991.[赵鸣，苗曼倩，王彦昌.边界层气象学教程[M].北京:气象出版社，1991.]
[3]Garratt J R. The Atmospheric Boundary Layer[M].Cambridge University Press: Combridge, 1992.
[4]Jiang Weimei, Xu Yumao,Yu Hongbin. Base of Boundary-layer Meteorology[M]. Nanjing: Nanjing University Press, 1994.[蒋维楣，徐玉貌，于洪彬.边界层气象学基础[M].南京:南京大气出版社，1994.]
[5]Raman S B, Templeman T Holt,Murthy A B.Structure of the Indian southwesterly pre-monsoon and monsoon boundary layers: Observations and numerical simulation[J]. Atmospheric Environment, 1990, 24a(4)：723-734.
[6]Zhang Qiang,Wei Guoan, Hou Ping. Observational study on a case of the atmosphere boundary layer characteristics in Dunhuang region[J].Plateau Meteorology, 2004，23（5）：587-597.[张强，卫国安，侯平.初夏敦煌戈壁大气边界结构特征的一次观测[J].高原气象，2004，23（5）：587-597．]
[7]Zhang Qiang,Wang Sheng,Li Yanying, The depth of atmospheric boundary layer in arid region of northwest China[J]. Acta Meteorologica Sinica,2006, 20(suppl.):1-12.
[8]Zhang Qiang. Study on depth of atmospheric thermal boundary layer in extreme arid desert regions[J].Journal of Desert Research,2007，27(4)：614-620.[张强.荒漠地区大气热力边界层厚度研究[J].中国沙漠，2007，27(4)：614-620.]
[9]Zhang Qiang, Huang Ronghui, Wei Guoan,et al.NWC-ALIEX and its research advances[J].Advances in Earth Science，2005，20(4)：427-441．[张强，黄荣辉，卫国安,等.西北干旱区陆面过程观测野外试验(NWC-ALIEX)及其研究进展[J].地球科学进展,2005，20(4)：427-441.]
[10]Zhang Qiang, Wei Guoan, Huang Ronghui. The study of the atmospheric bulk transfer coefficient over Desert and Gobi in arid region of northwestern China[J]. Science in China (Series D),2001, 31(9) ：783-792.[张强，卫国安，黄荣辉.敦煌戈壁大气曳力系数的观测与研究[J].中国科学:D辑, 2001, 31(9)：783-792.]
[11]Zhang Qiang, Huang Ronghui. Water vapor exchange between soil and atmosphere over a Gobi surface near an Oasis in summer[J]. Journal of Applied Meteorology,2004，43(12) ：1 917-1 928.
[12]Zhang Qiang, Huang Ronghui. Parameters of land surface processes on Gobi in northwest China[J].Boundary-Layer Meterology,2004, 110(3) ：471-478.
[13]Zhang Qiang, Wang Sheng. The annual variation and the climatic importance about characteristics of water and heat in soil and the surface radiation equilibrium over Gobi in the arid region[J].Progress in Natural Science,2007，17(2)：211-216．[张强，王胜.干旱荒漠地区土壤水热特征和地表辐射平衡的年变化及其气候学意义研究[J].自然科学进展，2007，17(2)：211-216．]
[14]Crum T D, Stull R B,Eloranta E W.Coincident lidar and aircraft observations of entrainment into thermals and mixed layer[J].Journal of Climate and Applied Meteorology, 1987, 26：774-788.
[15]Angevine W M, White A B, Avery S K. Boundary layer depth and entrainment zone characterization with a boundary-layer profiler[J].Boundary Layer Meteorology, 1994,68：375-385.
[16]Zhang Qiang, Cao Xiaoyan.A Study of Surface heat and radiation budget energy in Gobi in Dunhuang region[J].Chinese Journal of Atmosphere Sciences,2003，27（2）：245-254.[张强，曹晓彦. 荒漠戈壁地区地表热量和辐射平衡特征[J].大气科学，2003，27（2）：245-254.]
[17]Zhang Qiang, Cao Xiaoyan, Wei Guoan, et al.Observation and study of some key parameters of land surface process of Gobi in arid region[J].Advances in Atmospheric Science,2002, 19(1)：1-14.
[18]Deardorf J W.Convective velocity and temperature scale for the unstable planetary boundary layer and for Rayleigh convection[J].Journal of Atmospheric Sciences,1970,27：1 211-1 213.
[19]Redelsperger J L, Mondon S, Guichard F.Parameterization of mesoscale enhancement of surface fluxes in general circulation model[J].Bulletin of the American Meteorological Society,1998, 79(3)：89-102.
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