%0 Journal Article %T TEMPORAL AND SPATIAL DISTRIBUTIONS OF AEROSOLS OVER THE BOHAI SEA
渤海气溶胶时空分布研究 %A MA Yu-Juan %A ZHAO Dong-Zhi %A LIU Yu-Guang %A YANG Jian-Hong %A GU Yan-Zhen %A
马玉娟 %A 赵冬至 %A 刘玉光 %A 杨建洪 %A 顾艳镇 %J 海洋与湖沼 %D 2012 %I %X Aerosol optical thickness(AOT) data between 2003 to 2008 obtained using a ship-based multiband sun photometer were taken to study the temporal and spatial distributions and the influencing factors of AOT,turbidity coefficient(β),and ngstr m exponent(α) over the Bohai Sea.We obtained a total of 212 datasets from eight cruises and two fix-point measurements.There were 72 datasets in 2003,21datasets in 2004,98 datasets in 2005,and 21 datasets in 2008.Intra-day variations of AOT,β,and α were inconspicuous.The mean values and ranges of AOT,β,and α decreased from June to September.The values of AOT,β,and α in June,August and September were larger than those in March due to smog,sandstorm,and ocean moisture.In most areas within 25 km offshore,AOT and β decreased with increasing distance from shore.However,the variation of α did not show a clear trend.Over the Bohai Sea,the influence of β on AOT was more significant than α.The relationship between AOT and β was described by AOT = 2.52×β + 0.07 when α is greater than 0.8,and he relationship became AOT = 1.20×β + 0.16 when α is smaller than 0.8.We classified the aerosols into two types based on whether α was greater than 0.8.The influence of small changes in aerosol particle size on AOT may be ignored for certain types of aerosols. %K Aerosol optical thickness %K Turbidity coefficient %K ngstrm exponent %K Moisture
气溶胶光学厚度 %K 浑浊度系数 %K ngstrm指数 %K 水汽 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=2D9C75573FA3E416&jid=10F18692CD69EACA2DF7FC109993D35C&aid=115D7742A99E5C953FA40820226F7F10&yid=99E9153A83D4CB11&vid=BE33CC7147FEFCA4&iid=0B39A22176CE99FB&sid=F9F74EC1AA08A7B9&eid=E089FDF3CDAE8561&journal_id=0029-814X&journal_name=海洋与湖沼&referenced_num=0&reference_num=0