Partic. vol. 2 no. 6 pp. 256-260 (December 2004)
doi: 10.1016/S1672-2515(07)60070-0

Vertical distribution of atmospheric aerosol concentration at xianghe

Li Xu^a,*, Guangyu Shi^b, Jun Zhou^c, Yasunobu Iwasaka^d

xuli@cma.gov.cn

Abstract

This paper summarizes atmospheric aerosol concentrations of 5 stratospheric balloon soundings during the period from 1984 to 1994. Aerosol-rich layers in the troposphere were detected and the causes were analyzed. The main results are as follows: (1) the vertical distribution of the atmospheric aerosol is affected by atmospheric dynamic processes, humidity, etc.; (2) the tropospheric column concentrations of aerosol were 72.2×10⁵, 20.2×10⁵, 20.7×10⁵ and 34.4×10⁵ cm⁻² and occupying 81%, 61% and 60% of the 0-to-30 km aerosol column, on Aug. 23, 1984, Aug. 22, 1993, Sept. 12, 1993 and Sept. 15, 1994, respectively; (3) the effect of volcano eruption was still evident in the aerosol profiles, 28 and 27 months after the El Chichon and Pinatubo eruption; (4) the aerosol concentration in the troposphere did not decrease at all heights as atmospheric aerosol model.

Keywords

aerosol profiles of troposphere and stratosphere; aerosol-rich layers; column concentrations of aerosol