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首页> 外文期刊>Tellus, Series B. Chemical and Physical Meteorology >Chemical properties of Arctic aerosol particles collected at the Zeppelin station during the aerosol transition period in May and June of 2004
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Chemical properties of Arctic aerosol particles collected at the Zeppelin station during the aerosol transition period in May and June of 2004

机译：2004年5月和6月的气溶胶过渡时期在齐柏林飞艇站收集的北极气溶胶颗粒的化学性质

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摘要

Single particle analysis was performed on samples taken at the Zeppelin Station, Svalbard, during the ASTAR campaign, 2004. Thirteen samples were selected to representatively cover the campaign period and different weather conditions. This particular period also covers the transition from an accumulation mode dominated size distribution in spring to an Aitken mode dominated aerosol size distribution in summer. Altogether, 1353 particles were analysed and their elemental composition documented. Another 1225 were counted but not characterized chemically. The samples were compared with respect to chemical composition, aerosol size, shape and airmass origin. The comparison showed that the samples taken before the aerosol size transition were dominated by spherical 'organic like' particles in the submicrometre range, with an Eurasian influence. The samples taken after the size transition showed a more complex character and the source origin was the Arctic basin. In this period, an increase of both marine aerosol groups as well as groups of continental origin became more pronounced. This apparent contradiction may have its explanation in cloud scavenging processes, removing the hygroscopic particles from the old continental air, leaving the more hydrophobic particles, at the same time, as the ocean source will provide a more maritime character.
机译：在2004年ASTAR运动期间，对在斯瓦尔巴特的齐柏林飞艇站采集的样品进行了单颗粒分析。选择了13个样品来代表运动期和不同的天气情况。这个特定时期还涵盖了从春季的累积模式主导的尺寸分布到夏季的艾特肯模式主导的气溶胶尺寸分布的过渡。总共分析了1353个颗粒，并记录了其元素组成。计数了另外1225个，但是没有化学特征。比较了样品的化学成分，气溶胶尺寸，形状和气团来源。比较结果表明，在气溶胶尺寸转变之前采集的样品被亚微米范围内的球形“有机样”颗粒所占据，并受到欧亚的影响。尺寸过渡后采集的样品显示出更复杂的特征，其来源为北极盆地。在此期间，海洋气溶胶组以及大陆起源组的增加都变得更加明显。这种明显的矛盾可能在清除云层的过程中得到了解释，清除了旧大陆空气中的吸湿性颗粒，同时留下了更多的疏水性颗粒，因为海洋资源将提供更多的海洋特性。

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