Abundances and Microphysical Properties of Light‐Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic
Abundances and Microphysical Properties of Light‐Absorbing Iron Oxide and Black Carbon Aerosols Over East Asia and the Arctic
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东亚和北极地区吸光氧化铁和黑碳气溶胶的丰度和微物理性质
DOI：
10.1029/2019jd032301
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Kita Kazuyuki
中科院分区：
文献类型：
--
作者：
Yoshida Atsushi;Moteki Nobuhiro;Ohata Sho;Mori Tatsuhiro;Koike Makoto;Kondo Yutaka;Matsui Hitoshi;Oshima Naga;Takami Akinori;Kita Kazuyuki
黑碳（BC）、棕碳和吸光氧化铁（FeOx）气溶胶通过强烈吸收太阳辐射影响地球的能量收支。氧化铁气溶胶还可以通过其作为海洋浮游植物营养物的作用影响全球生物地球化学循环。然而，使用全球模型评估其影响所需的这些气溶胶的观测数据很少，特别是对于FeOx。在这里，我们总结并比较了2009-2018年期间在东亚和北极地区进行的五次地面和三次飞机观测活动中使用改进的单粒子烟尘光度计获得的BC和FeOx数据集。在这些活动中，在170-270 nm FeOx核心尺寸范围内，>80%的含FeOx气溶胶具有表明人为来源的微物理特征。除了那些由新鲜的城市污染或原始的北极空气为主的数据集，所有的数据集的颗粒大小分布的BC和氧化铁是相似的。在东亚，氧化铁和硼化碳的活动平均质量浓度分别约为60-360 ng/m3和240- 1，300 ng/m3，在北极分别约为6 ng/m3和20-30 ng/m3。在东亚和北极地区，活动平均FeOx/BC质量浓度比在0.2-0.6的窄范围内变化。在每个活动中，FeOx、BC和CO都彼此紧密相关，其斜率与城市活动（东京周围）相似，这意味着北方中高纬度地区人为FeOx排放的时空变化与人为BC和CO排放的时空变化相似。
Black carbon (BC), brown carbon, and light‐absorbing iron oxides (FeOx) aerosols affect Earth's energy budget through their strong absorption of solar radiation. FeOxaerosols can also affect global biogeochemical cycles through their role as a nutrient for oceanic phytoplankton. However, observational data for these aerosols required for evaluating their effects using global models are scarce, especially for FeOx. Here, we summarize and compare the data sets of BC and FeOxfrom five ground‐based and three aircraft observation campaigns conducted in the East Asian and Arctic regions during the 2009–2018 period acquired using a modified single‐particle soot photometer. In these campaigns, >80% of FeOx‐containing aerosols in the 170–270 nm FeOxcore size range had microphysical features indicating an anthropogenic origin. The particle size distribution for each of the BC and FeOxwas similar in all of the data sets except for those dominated by fresh urban pollution or pristine Arctic air. The campaign‐averaged mass concentrations of FeOxand BC were ~60–360 ng/m3and ~240–1,300 ng/m3, respectively, in East Asia, and ~6 ng/m3and ~20–30 ng/m3, respectively, in the Arctic. The campaign‐averaged FeOx/BC mass concentration ratio varied within a narrow range of 0.2–0.6 in both East Asian and Arctic regions. In every campaign, FeOx, BC, and carbon monoxide were tightly correlated with each other with similar slope to the urban campaigns (around Tokyo), implying the spatiotemporal variation of anthropogenic FeOxemission around northern middle‐to‐high latitudes is similar to those of anthropogenic BC and CO emissions.
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影响因子：
--
作者：
H. Matsui;Y. Kondo;N. Moteki;N. Takegawa;L. Sahu;Yongjing Zhao;H. Fuelberg;W. Sessions;G. Diskin;D. Blake;A. Wisthaler;M. Koike
通讯作者：
H. Matsui;Y. Kondo;N. Moteki;N. Takegawa;L. Sahu;Yongjing Zhao;H. Fuelberg;W. Sessions;G. Diskin;D. Blake;A. Wisthaler;M. Koike
影响因子：
5.2
作者：
Atsushi Yoshida;N. Moteki;S. Ohata;T. Mori;R. Tada;P. Dagsson-Waldhauserová;Y. Kondo
通讯作者：
Atsushi Yoshida;N. Moteki;S. Ohata;T. Mori;R. Tada;P. Dagsson-Waldhauserová;Y. Kondo
影响因子：
5.2
作者：
Moteki, Nobuhiro;Kondo, Yutaka
通讯作者：
Kondo, Yutaka
使用监督机器学习通过单颗粒烟灰光度计对氧化铁气溶胶进行分类
影响因子：
3.8
作者：
K. Lamb
通讯作者：
K. Lamb
使用带有加热入口的基于过滤器的吸收光度计测量黑碳的准确性
影响因子：
5.2
作者：
Ohata;S.;Kondo;Y.;Moteki;N.;Mori;T.;Yoshida;A.;Sinha P. R.;Koike;M.
通讯作者：
M.