The Relationship between Aerosol and CCN Measured on a High Mountain in Southeast China
Based on observing data of atmospheric aerosols measured on the top of Mts. Huang, southeast China, the physical characteristics of aerosol particles, such as number concentration, size distribution were analyzed. The results show that the mean number concentration reached 3.14×103 cm-3 in spring, 1.80×103 cm-3 in summer, and ultra fine particles (<0.1 μm) account for 79％ in spring and 68％ in summer, respectively. The number concentration distributions in spring and summer all present a single peak, the peak value appears in 0.04~0.12 μm size range. The accumulation mode particles dominate in volume and surface concentration distributions. The CCN concentration can be expressed with the formula: N=CSk , the results of parameters C and k show that there is a continental characteristic of CCN in spring, while maritime characteristic in summer. A parameterization scheme for describing aerosol-cloud relationships is proposed.
Aerosol CCN Cloud-fog droplet Size distribution Relationship
Yan Yin Kui Chen Chen Chen Wen Tan
Open Key Laboratory for Atmospheric Physic and Environment of China Meteorological Administration,Nanjing University of Information Science & Technology,Nanjing 210044,China
国际会议
西安
英文
234-241
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）