Characteristics and parameterization of atmospheric ice nucleating particles concentration in different background areas of China
In order to understand the characteristics of Ice Nucleating Particles(INP)concentration in different background areas of China,this paper conducted sampling observations of INP and aerosols in different areas,which found that:the average value of INP concentration in the top of Huangshan Mountain,Nanjing,the top of Taishan Mountain,the bottom of Taishan Mountain,Xinjiang without dust and Xinjiang with dust was 2.208,7.16,3.455,4.818,11.27,and 51.812 5 L-1,respectively.The distributions of temperature and humidity spectra of INP concentrations in different background areas are given.At the same time,it is found that there is a high correlation between the number concentration of INP and the number concentration of aerosol particles with the size larger than 0.5 μm,which means that the higher the proportion of large particles in aerosol particles is,the higher the number concentration of INP is.In addition,parameterizations of INP based on activation temperature,supersaturation,and aerosol particle number concentration larger than 0.5 μm were developed,and they can be applied to desert,relatively clean background areas,and contaminated urban areas,respectively.