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首页> 外文期刊>Atmospheric chemistry and physics >New particle formation events observed at King Sejong Station, Antarctic Peninsula – Part 1: Physical characteristics and contribution to cloud condensation nuclei
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New particle formation events observed at King Sejong Station, Antarctic Peninsula – Part 1: Physical characteristics and contribution to cloud condensation nuclei

机译：在Sejong站王先生，南极半岛观察新的粒子形成活动 - 第1部分：云凝结核的物理特征和贡献

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摘要

The physical characteristics of aerosol particles during particle bursts observed at King Sejong Station in the Antarctic Peninsula from March 2009 to December 2016 were analyzed. This study focuses on the seasonal variation in parameters related to particle formation such as the occurrence, formation rate (FR) and growth rate (GR), condensation sink (CS) and source rate of condensable vapor. The number concentrations during new particle formation (NPF) events varied from 1707 to 83 120 cm~(-3), with an average of 20 649±9290 cm~(-3), and the duration of the NPF events ranged from 0.6 to 14.4 h, with a mean of 4.6±1.5 h. The NPF event dominantly occurred during austral summer period (~ 72 %). The measured mean values of FR and GR of the aerosol particles were 2.79±1.05 cm~(-3) s~(-1) and 0.68±0.27 nm h~(-1), respectively, showing enhanced rates in the summer season. The mean value of FR at King Sejong Station was higher than that at other sites in Antarctica, at 0.002–0.3 cm-3 s~(-1), while those of growth rates were relatively similar to the results observed by previous studies, at 0.4–4.3 nm h~(-1). The derived average values of CS and source rate of condensable vapor were (6.04±2.74)×10~(-3) s~(-1) and (5.19±3.51)×10~4 cm-3 s~(-1), respectively. The contribution of particle formation to cloud condensation nuclei (CCN) concentration was also investigated. The CCN concentration during the NPF period increased by approximately 11% compared with the background concentration. In addition, the effects of the origin and pathway of air masses on the characteristics of aerosol particles during a NPF event were determined. The FRs were similar regardless of the origin and pathway, whereas the GRs of particles originating from the Antarctic Peninsula and the Bellingshausen Sea, at 0.77±0.25 and 0.76±0.30 nm h~(-1), respectively, were higher than those of particles originating from the Weddell Sea (0.41±0.15 nm h~(-1)).
机译：分析了2009年3月至2016年12月在南极半岛王Sejong站观察到的粒子爆发过程中的气溶胶颗粒的物理特征。该研究侧重于与颗粒形成相关的参数的季节变化，例如发生，形成速率（FR）和生长速率（GR），冷凝水槽（CS）和可冷凝蒸汽的源速率。新的颗粒形成期间的数量浓度（NPF）事件的数量从1707变化到830cm〜（-3），平均为20 649±9290cm〜（-3），并且NPF事件的持续时间为0.6到14.4小时，平均为4.6±1.5小时。澳大利亚州夏季期间占主导地位（〜72％）。气溶胶颗粒的FR和GR的测量平均值分别为2.79±1.05cm〜（-3）S〜（-1）和0.68±0.27nm H〜（-1），显示夏季的增强率。 Sejong站的FR的平均值高于南极洲其他地点的FR，0.002-0.3cm-3 S〜（-1），而生长率的那些与先前研究观察的结果相对相似。 0.4-4.3 nm h〜（-1）。可冷凝蒸气的Cs和源速率的衍生平均值为（6.04±2.74）×10〜（-3）s〜（-1）和（5.19±3.51）×10〜4 cm-3 s〜（-1） ， 分别。还研究了颗粒形成对云凝结核（CCN）浓度的贡献。与背景浓度相比，NPF期间的CCN浓度增加了大约11％。此外，测定了空气肿块起源和通路对NPF事件期间气溶胶颗粒特性的影响。无论原产地和途径如何，FRS都是相似的，而源自南极半岛和Bellingshausen海的颗粒，分别为0.77±0.25和0.76±0.30nm H〜（-1）均高于颗粒来自韦德尔海（0.41±0.15nm H〜（-1））。

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  • 来源
    《Atmospheric chemistry and physics》 |2019年第2期|共12页
  • 作者

    Jaeseok Kim; Young Jun Yoon; Yeontae Gim; Jin Hee Choi; Hyo Jin Kang; Ki-Tae Park; Jiyeon Park; Bang Yong Lee;

  • 作者单位

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

    Korea Polar Research Institute 26 Songdomirae-ro Yeonsu-gu Incheon 21990 Republic of Korea;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 大气科学（气象学）;
  • 关键词

    the Antarctic Peninsula; parameters related; King Sejong;

    机译：南极半岛;参数相关;王Sejong;

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