主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报

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潮州沿海大气气溶胶无机离子浓度分布与气象要素的相关分析

姚青1;孙玫玲1;张长春1;穆怀斌1;韩春明2   

  1. 1.天津市气象科学研究所 天津300061;2.天津市气象局 天津300074
  • 收稿日期:2006-11-15 修回日期:2007-04-11 出版日期:2007-08-01 发布日期:2007-08-01

Relationship between inorganic ion concentration distribution of atmospheric aerosol and meteorological element at Chaozhou coastland

YAO Qing1 SUN Meiling1 ZHANG Changchun1 MU Huaibin1 HAN Chunming2   

  1. 1.Tianjin Institute of Meteorological Sciences;Tianjin 300061;2.Tianjin Meteorological Bureau;Tianjin 300074
  • Received:2006-11-15 Revised:2007-04-11 Online:2007-08-01 Published:2007-08-01

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摘要： 根据2004年广东潮州沿海地区的气溶胶浓度观测资料,分析潮州沿海大气气溶胶无机离子浓度分布特征及气象要素对其的影响。结果表明:离子浓度季节性差异明显,总离子浓度呈现春夏季低、秋冬季高的特征,系由当地不同季节降雨量和风向分布不同造成的;气溶胶无机成分与海水近似,表明海盐是当地气溶胶的重要来源之一,但Cl-与Na+不一致,表明可能存在除海盐颗粒以外的异地气溶胶长距离输送;总离子浓度随采样点高度增加而降低,随采样时海陆风变化而变化;阳离子浓度日际变化不明显,阴离子浓度易受天气条件影响。

关键词: 潮州沿海地区, 气溶胶, 无机离子, 浓度分布, 气象要素

Abstract: Based on the observation data of aerosol particles in 2004 in Chaozhou coastland,the inorganic ion concentration distribution of atmospheric aerosol and the effect of meteorological element on them were analyzed.The results indicated that the season difference of ion concentration was obvious.The total ion concentration was lower in spring and summer,whereas it was higher in autumn and winter,which was caused by the difference of precipitation and wind direction in this area.The inorganic component of aerosol was similar to that of sea water,so it was considered that sea salt was one of the most important source of aerosol particles.The concentrations of Cl-and Na+ were different.Thus,it showed that aerosol particles in other area were likely transported to the study area.Furthermore,the total ion concentration decreased with the increase of sampling sites'height,and it changed with the sea-land wind change.Daily changes of positive ion concentration were not obvious,while those of negative ion concentration were influenced easily by weather conditions.