A comprehensive study of physical and chemical parameters of the Arctic summer aerosol; results from the Swedish expedition Ymer-80
A comprehensive study of physical and chemical parameters of the Arctic summer aerosol; results from the Swedish expedition Ymer-80
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DOI：
10.3402/tellusb.v35i1.14585
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发表时间：
1983-02
期刊：
影响因子：
--
通讯作者：
H. Lannefors;J. Heintzenberg;H. Hansson
中科院分区：
文献类型：
--
作者：
H. Lannefors;J. Heintzenberg;H. Hansson
1980年夏天，瑞典破冰船Ymer-80号考察队在北极的挪威部分进行了探索，为协调大气研究计划提供了独特的机会。使用连接到一个共同的空气入口的不同种类的采样器和连续监测器研究了北极气溶胶的化学和物理特性。使用凝结核计数器控制取样，避免了船舶及其直升机排放物等局部污染。来自北极定居点的排放被认为只贡献凝结核，对气溶胶质量和化学成分没有重大影响。北极夏季总平均水平，特别是那些可能的人为成分，即煤烟，非海洋S，Ni。铜，锌和铅，低一个数量级或以上的晚冬水平发现斯匹次卑尔根岛，但在同一水平的夏季值在北方格陵兰岛。大多数组分在1至2之间变化。数量级的变化采样期主要受海雾影响，其特点是高TSP和氯含量。几个案子。可能受到来自欧洲大陆的远距离迁移的影响，其特点是高σ sp烟尘、硫和重金属浓度。北极背景气溶胶组成被认为是由相对强度的活动源和汇机制结合采样时间分辨率。DOI：10.1111/j.1600-0889.1983.tb00006.x
The Swedish icebreaker expedition Ymer-80 exploring the Norwegian part of the Arctic during the summer of 1980 offered unique opportunities for a coordinated atmospheric research program. Chemical and physical properties of the Arctic aerosol were studied using different kinds of samplers and continuous monitors connected to a common air inlet. Local contamination such as emissions from the ship and its helicopters were avoided using a condensation nucleus counter to control the sampling. Emissions from Arctic settlements were found to contribute only condensation nuclei and to have no significant influence on the aerosol mass and chemical composition. Arctic summer grand average levels, especially those of possible anthropogenic components i.e. soot, non-marine S , Ni. Cu, Zn and Pb, were lower by one order of magnitude or more than late winter levels as found on Spitsbergen, but on the same level as summer values in Northern Greenland. Most of the components varied over 1 to 2. orders of magnitude during the expedition. Sampling periods mainly influenced by sea spray were characterized by high TSP and chlorine levels. A few cases. possibly influenced by long-range transport from the European continent, were characterized by high σ sp soot, sulphur and heavy metal concentrations. The Arctic background aerosol composition was found to be determined by the relative strength of active source and sink mechanisms in combination with the sampling time resolution. DOI: 10.1111/j.1600-0889.1983.tb00006.x