Advertisement

Advances in Atmospheric Sciences

, Volume 20, Issue 1, pp 111–118 | Cite as

A Parameterization Scheme of Surface Turbulent Momentum and Sensible Heat over the Gobi Underlying Surface

  • Qiang Zhang
  • Ronghui Huang
  • Hui Tian
Article

Abstract

The parameterization of surface turbulent fluxes over the Gobi Desert in arid regions is studied by using rationally screened observational data. First, the characteristics of Monin-Obukhov similarity functions are analyzed and their empirical formulae are fitted. The results show that fitted curves of changes of similarity functions of wind speed and temperature with stability parameter differ little from the typical empirical curves and are within the ranges of scatter of the empirical curves, but their values in the neutral condition arc different from the typical values to some extent. Furthermore, average values of momentum and scalar (sensible heat) roughness lengths as well as changes of scalar roughness length with friction velocity are determined by utilizing the data. It is found that the average values of scalar roughness length are about one order smaller than that of the momentum roughness length and decrease with increasing friction velocity, but they are evidently larger than their theoretically forecasted values.

Key words

Gobi surface turbulent flux parameterization similarity functions scalar roughness length 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Bradley, E. F., R. A. Antonia, and A. J. Chambers, 1981: Temperature structure in the atmospheric surface layer, Part 1 and Part 2. Bound. Layer Meteor., 20, 275 307.CrossRefGoogle Scholar
  2. Businger, J. A., J. C. Wyngaard, Y. Izumi, and E. F. Bradley, 1971: Flux profile relationships in the atmospheric surface layer. J. Atmos. Sci, 28, 181–189.CrossRefGoogle Scholar
  3. Brutsaert, W., 1982: Evaporation into the Atmosphere, D. Reidel Publishing Company, Dordrecht, Holland, 299pp.CrossRefGoogle Scholar
  4. Carl, D. M., T. C. Tarbell, and H. A. Panofsky, 1973: Profiles of wind and temperature from towers over homogeneous terrain. J. Atmos. Sci., 30, 788–794.CrossRefGoogle Scholar
  5. Chen J. Y., Wang J. M., and H. Mitsuaki, 1993: An independent method to determine the surface roughness length. Chinese J. Atmos. Sci., 17(1), 21–26. (in Chinese)Google Scholar
  6. Dyer, A. J., and B. B. Hicks, 1970: Flux gradient transport of heat and water in an unstable atmosphere. Quart. J. Roy. Meteor. Soc., 93, 501–508.CrossRefGoogle Scholar
  7. Dyer, A. J., 1974: A review of flux-profile relations. Bound.-Layer Meteor., 7, 363–372.CrossRefGoogle Scholar
  8. Garratt, J. R., 1992, The Atmospheric Boundary Layer, Cambridge University Press, Combridge, 89–93.Google Scholar
  9. Kai, K. 1982: Statistical characteristics of turbulence and the budget of turbulent energy in the surface boundary layer. Environmental Research Center Paper No.1, University of Tsukuba.Google Scholar
  10. Liu H. Z., Zhang H. S., Bian L. G., and Chen J. Y., 2002: Characteristics of micrometeorology in the surface layer in the Tibetan Plateau. Advances in Atmospheric Sciences, 19(1), 73–88.CrossRefGoogle Scholar
  11. Monin, A. S., and A. M. Obukhov, 1954: Basic laws of turbulent mixing in the atmosphere near the ground. Tr. Geofiz. Inst. Akad, Nauk SSSR, 24(151), 163–187.Google Scholar
  12. Sorbjan, Z. 1989: Structure of the Atmospheric Boundary Layer., Prentice-Hall Inc., 317pp.Google Scholar
  13. Wang J. M., Cui T. M., Y. Mitsuta, and H. Mitsuaki, 1992: A real-time, low cost turbulence data acquisition and processing system. Plateau Meteor., 11(4), 451–490. (in Chinese)Google Scholar
  14. Zhang Q., and Hu Y. Q., 1992: The instrumental accuracy and observational error about microrneteorological mast of Chinese side in “HEIFE”. Plateau Meteor., 11(4), 460–469. (in Chinese)Google Scholar
  15. Zhang Q., Cao X. Y., Wei G. A., and Huang R. H., 2002a: Observation and study on land surface parameters over Gobi in typical arid region. Advances in Atmospheric Sciences, 19(1), 121–135.CrossRefGoogle Scholar
  16. Zhang Q., Wei G. A., and Huang R. H., 2002b: The study of the atmospheric bulk transfer coefficient over Desert and Gobi in arid region of northwestern China. Science in China (Series D), 45(5), 468–480.CrossRefGoogle Scholar
  17. Zuo H. C., Hu Y. Q., 1992: The bulk transfer coefficient over Desert and Gobi in the Heihe region. Plateau Meteor., 11(4), 371–380. (in Chinese)Google Scholar

Copyright information

© the editorial office of Advancees in Atmospheric Sciences (China) 2003

Authors and Affiliations

  1. 1.Institute of Arid MeteorologyChina Meteorological AdministrationLanzhou
  2. 2.Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing
  3. 3.Cold and Arid Regions Environment and Engineering InstituteChinese Academy of SciencesLanzhou

Personalised recommendations