Title :
The distributions of CCN during haze/fog events in Shijiazhuang aera
Author :
Sun, Xia ; Yin, Yan ; Xiao, Hui ; Tan, Wen
Author_Institution :
CMA Key Lab. for Atmos. Phys. Environ., Nanjing Univ. of Inf. Sci. & Technol., Nanjing, China
Abstract :
In-situ aircraft measurements of CCN(Cloud Condensation Nuclei) of 4 flights under the foggy and hazy weather during the period from September to October are analyzed in Shijiazhuang, China. The Analysis of the vertical distribution, the horizontal distribution and the size distribution of CCN were conducted in this article. According to the expression N=CSk, the CCN spectra can be derived. The fitted spectra parameters C(2853) and k(about 0.61) in Shijiazhuang area show the characters of continental CCN. The clouds had an obvious consumption effect on CCN particles, and the inversion layer can make the number concentration of CCN increase in this area.
Keywords :
clouds; condensation; fog; particle size; weather forecasting; CCN size distribution; China; Shijiazhuang area; cloud condensation nuclei; fitted spectra parameter; foggy weather condition; hazy weather condition; horizontal distribution; in-situ aircraft measurement method; inversion layer analysis; vertical distribution analysis; Aerosols; Aircraft; Area measurement; Cities and towns; Clouds; Meteorology; Temperature measurement; CCN; Shjiazhuang area; aircraft measurements; distribution;
Conference_Titel :
Electronics, Communications and Control (ICECC), 2011 International Conference on
Conference_Location :
Zhejiang
Print_ISBN :
978-1-4577-0320-1
DOI :
10.1109/ICECC.2011.6068022
