Journal of Atmospheric and Environmental Optics ›› 2011, Vol. 6 ›› Issue (1): 67-.

• 论文 • Previous Articles     Next Articles

Statistical Analysis of Radiation Flux and CO2 Surface Layer in Hefei and Estimation of Turbulent Flux Using Dissipation Methods

WU Xiao-qing1, LIN Xiao-qing1,2, ZHU Xing-ting1,2, LI Duo-Yuang1, HU Shun-xing1   

  1. (1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institude of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China; 
    2 Graduate School of Chinese Academy of Sciences, Beijing 100039, China)
  • Received:2010-11-01 Online:2011-01-28 Published:2011-03-10

Abstract:

It is important to measure and estimate turbulent flux in surface layer for study air-land interaction. The data of radiation flux and concentration in fine weather from 10 January 2007 to 14 October 2010, in Hefei have been analysed statistically. The characteristics of season variation and diurnal of albedo and net radiation flux have been obtained. The experiment of surface energy budget shows that there are about 40% energy closure gaps in daytime. The data from 2007-2010 show that CO2 concentration in winter, spring, autumn and summer is 735 mg*m-3, 704.4 mg*m-3, 701.8 mg*m-3 and 692.6 mg*m-3 respectively. The turbulent fluxes estimated by dissipation methods and measured by eddy correlation have been compared.

Key words: turbulent flux, statistical analysis, dissipation methods

CLC Number: