%0 Journal Article
%T The analysis of sources of ambient light extinction coefficient in summer time of Beijing city<br>北京市夏季大气消光系数的来源分析
%A LIU Xinmin
%A SHAO Min
%A <br>刘新民
%A 邵敏
%J 环境科学学报
%D 2004
%I 
%X Using the measured concentrations of ambient particles and gaseous species in the summer of 1999, the averaged contributions of light extinction are calculated by Mie model. It is found that the total extinction coefficient is 0.388?km~(-1). The major component of b_(ext) is b_(sp) (70.5% of b_(ext)), followed by b_(ap) (22.3% of b_(ext)), b_(sg) (3.6% of b_(ext)) and b_(ag) (3.5% of b_(ext)). The light extinction is mainly from particles, which accounts for more than 90% of total extinction coefficient.
%K visibility
%K extinction coefficient
%K scattering coefficient
%K absorption coefficient<br>能见度
%K 消光系数
%K 散射系数
%K 吸收系数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=03A55E61A8750ACAC6AF81EF9E2AC838&aid=ED135CD878ED9C67&yid=D0E58B75BFD8E51C&vid=B91E8C6D6FE990DB&iid=0B39A22176CE99FB&sid=D46BA3D3D4B3C585&eid=3A0155B37D8FF829&journal_id=0253-2468&journal_name=环境科学学报&referenced_num=20&reference_num=12