SCIENTIA GEOGRAPHICA SINICA ›› 2003, Vol. 23 ›› Issue (1): 13-18.doi: 10.13249/j.cnki.sgs.2003.01.13

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The Intersity of Surface Heat Source and Surface Heat Balance on the Western Qinghai-Xizang Plateau

LI Guo-Ping1, DUAN Ting-Yang1, WU Gui-Fen2   

  1. 1. Department of Earth and Environmental Sciences Chengdu University of Information Technology, Chengdu, Sichuan 610041;
    2. Taiyuan Aviation Instruments Limited Company, Taiyuan, Shanxi 030006
  • Received:2002-02-27 Revised:2002-05-23 Online:2003-01-20 Published:2003-01-20

Abstract: On the gradient observational data of the atmospheric surface layer from November 1997 to October 1998 collected by two sets of Automatic Weather Station (AWS) installed in Grz and Shiquanhe on the western Qinghai-Xizang Plateau, the bulk transfer coefficients each day are computed by the profile-flux method, and surface fluxes of sensible heat and latent heat each day are further estimated by the bulk formulas. The results show that the surface on the western Qinghai-Xizang Plateau is a heat source during this period whether in summer or in winter, the intensity of this heat source exhibits an obvious seasonal variation, yearly means of intensity of this heat source at the two stations are 82.5W/m2 and 8.2W/m2, respectively. The surface heat balance is discussed by involving the observational data of radiation and soil heat transfer, and the closed test of the surface heat balance equation is made.

CLC Number: 

  • P422.4