Spectral characteristics of total ozone and temperature vertical distribution over the Issyk Kul Lake (Northern Tien Shan)

摘要

The results of long-term measurements of total ozone (TO) obtained during 1979-2001 over Tien Shan at the Issyk Kul (IK) station have been analyzed by the Fourier transform and the wavelet method. The results of the spectral analysis for TO were compared with similar results for the ground surface temperatures. It has been found that the variability of the surface temperature behavior correlates with the TO variations. To study the temperature spectral harmonics variations with altitude the NCER/NCAR data on temperature vertical distributions were used. It was found that within the range of 850-10 mb the temperature spectra behaved differently mainly at the heights less than those of the surrounding mountains (500 mb), below the polar tropopause (～250 mbar) and between the polar and tropical tropopauses. The peculiarities of TO harmonics for the periods from 15 to 45 months are in higher correlation with the temperature spectral harmonics up to levels of 100-50 mbar (over the tropical tropopause).