摘要
通过对南京北郊2007年10～12月大气气溶胶吸收和散射系数的连续观测,分析了该地区大气气溶胶吸收和散射特性在不同天气状况下的演变规律。结果发现:霾日状况下大气气溶胶吸收和散射系数日变化剧烈,非霾日次之,雾日变化较稳定;在00时(北京时间,下同)至08时霾日气溶胶吸收和散射系数与雾日相差不大,而在08时至24时则雾日明显大于霾日;非霾日气溶胶吸收和散射系数最小;降水使得大气气溶胶吸收和散射系数明显降低。
Based on the observation of absorption coefficients and scattering coefficients of the atmospheric aerosols during October to December in 2007 in the north suburb of Nanjing,the characteristics of absorption and scattering coefficients under different meteorological conditions are analyzed.The results indicate that the diurnal variations of the absorption and scatting coefficients of atmospheric aerosols are the most significant in hazy days,followed by that in non-hazy days,and the least pronounced in fog ...
出处
《气候与环境研究》
CSCD
北大核心
2009年第6期613-620,共8页
Climatic and Environmental Research
基金
国家重点研究发展计划项目2006CB403706
江苏省自然科学基金资助项目BK2006226
关键词
气溶胶
光声黑碳仪
吸收系数
散射系数
霾
雾
aerosol
photoacoustic soot spectrometer
absorption coefficient
scattering coefficient
haze
fog
