ABSTRACT Using the data of “A field experiment on landatmosphere interaction over arid region in Northwest China” carried out in Dunhuang of Gansu Province from May to June 2000; Characteristics of the atmospheric humidity over desert and Gobi near oasis in the Northwest China Arid Region are analyzed. According to the difference of the characteristics in different wind directions, the impacts of oasis on atmospheric hydrological cycle over desert and Gobi near it are revealed. The relation of atmosphere inverse humidity and negative water vapor flux to wind direction and atmospheric stability is studied. It shows that distribution of the atmosphere inverse humidity is inconsistent with that of the negative water vapor flux; sometimes 1-hour-average value demonstrates the characteristic of counter-gradient transfer. And the diurnal variation of distribution of the counter-gradient transfer and the effect of atmospheric stability on the counter-gradient transfer are also given.
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Zhang, Q. , Nan, Y. and Wang, S. (2010) Impacts of oasis on the atmospheric hydrological cycle over the nearby desert. Natural Science, 2, 681-687. doi: 10.4236/ns.2010.27084.
 Zhang, Q. and Huang, R.H. (2004) Water vapor exchange between soil and atmosphere over a gobi surface near an oasis in summer. Journal of Applied Meteorology, 43(12), 1917-1928.
Zhang, Q. and Huang, R.H. (2004) Parameters of land surface processes on Gobi in northwest China. Boundary-Layer Meterology, 110(3), 471-478.
Zeng, X. and Pielke, R.A. (1995) Landscape-induced atmospheric flow and its parameterization in large-scale numerical models. Journal of Climate, 8(5), 1156-1177.
Zhang, Q., Hu, Y.Q., Cao, X.Y. and Liu, W.M. (2000) About some problems of arid climate system of Northwest China. Journal of Desert Research (in Chinese), 20(4), 357-362.
Zhang, Q. and Cao, X.Y. (2003) A study of surface heat and radiation budget energy in Dunhuang region. Chinese Journal of Atmospheric Sciences, 27(2), 165-176.
Zhang, Q., Wang, S. and Sun, Z.X. (2009) A study of Atmospheric Boundary layer structure during a clear day in the Arid Region of Northwest China. ACTA Meteor Sinica, 23(3), 327-337.
Zhang, Q. and Hu, Y.Q. (1992) Characteristics of micrometeorology over the farmland in Oasis Heihe region. Plateau Meteorite (in Chinese), 11(4), 361-370.
Zhang, Q. and Zhao, M. (1999) Field experiment and numerical simulation of inverse humidity of atmosphere over desert near oasis. ACTA Meteor Sinica (in Chinese), 57(6), 729-740.
Zhang, Q., Song, L.C. and Wei, G.A. (2003) Characteristics of hydrologic transfer between soil and Atmosphere over Gobi near oasis at the end of summer. Advance in Atmospheric Science, 20(3), 442-452.
Zhang, Q., Wang, S., Michael, B., Tian, W.S. and Huang, R.H. (2010) The characteristics of sensible heat and momentum transfer coefficients over the Gobi in the northwest China. International Journal of Climatology, 2, 586-589.
Wang, J.M. and Mitsuta, Y. (1991) Turbulence structure and transfer characteristics in the surface layer of the HEIFE Gobi area. Journal of the Meteorology Society of Japan, 69(5), 587-593.
Hu, Y.Q., Yang, X.L., Zhang, Q. and Zuo, H.C. (1992) The characters of energy budget on the Gobi and desert surface in Hexi region. ACTA Meteor Sinica, 6(1), 82-91.
Zhang, Q. and Hu, Y.Q. (1992) The instrumental accuracy and observational error about micrometeorological mast of Chinese side in “HEIFE”. Plateau Meteorite (in Chinese), 11(4), 460-469.
Wang, J.M., et al. (1992) A real-time, low cost turbulence data acquisition and processing system. Plateau Meteorite (in Chinese), 11(4), 451-490.
Zhang, Q., Wei, G.A. and Huang, R.H. (2002) The bulk transfer coefficients of the atmospheric momentum and sensible heat over desert and Gobi in arid climate region of Northwest China. Science in China (Series D), 45(5), 468-480.
Deardorf, J.W. (1972) Theoretical expression for the counter gradient vertical heat flux. Journal of Geophysical Research, 77(30), 5900-5904.