Accuracy of black carbon measurements by a filter-based absorption photometer with a heated inlet
Accuracy of black carbon measurements by a filter-based absorption photometer with a heated inlet
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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
DOI：
10.1080/02786826.2019.1627283
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发表时间：
2019
影响因子：
5.2
通讯作者：
M.
中科院分区：
文献类型：
--
作者：
Ohata;S.;Kondo;Y.;Moteki;N.;Mori;T.;Yoshida;A.;Sinha P. R.;Koike;M.
长期测量的黑碳（BC）气溶胶的过滤器为基础的吸收光度计与加热入口（COSMOS）在不同的地区已被用于阐明的空间变化和辐射影响的BC。通过与其他测量技术的比较，我们以前的研究已经对COSMOS测量的BC质量浓度（MBC）进行了评估。然而，如何在BC和共存的光散射气溶胶的微物理特性的变化影响COSMOS测量应进行更详细的评估。在这项研究中，我们评估了这些潜在的影响下，在北极和东亚的各种现场环境。从COSMOS和单粒子烟尘光度计测量的MBC值之间的相关曲线的斜率来看，在1-3000 ng m−3的MBC范围内，COSMOS的平均精度估计为10%。在每小时的基础上，估计的敏感性COSMOSMBC值的BC大小分布的变化小于10%，在个别观测站点的BC大小的典型变异。COSMOS的测量结果几乎不依赖于BC的混合状态和共存的光散射气溶胶的浓度，除了在东亚的海洋气团中，海盐相对于BC的相对丰度非常高。COSMOS测量的MBC也与元素碳测量结果一致。我们的结果证明了COSMOS测量在各种环境下的高可靠性。版权所有© 2019美国气溶胶研究协会
Long-term measurements of black carbon (BC) aerosols by filter-based absorption photometers with a heated inlet (COSMOS) in different regions have been useful in elucidating spatial variations and radiative impacts of BC. Evaluations of mass concentrations of BC (MBC) measured by the COSMOS have been made by our previous studies through comparisons with other measurement techniques. However, how variations in the microphysical properties of BC and the co-existing light scattering aerosols affect the COSMOS measurements should be evaluated in more detail. In this study, we assessed these potential effects under various field environments in the Arctic and in the East Asia. From the slopes of the correlation plots between theMBCvalues measured by the COSMOS and a single-particle soot photometer, the average accuracy of the COSMOS was estimated as ∼10% in theMBCrange 1–3000 ng m−3. On an hourly basis, the estimated sensitivity of the COSMOSMBCvalues to the changes in the BC size distributions was less than 10%, within the typical variabilities of BC size at individual observation sites. The COSMOS measurements depended little on the mixing states of BC and the concentrations of co-existing light scattering aerosols, except in the maritime air masses of East Asia, where the relative abundance of sea salt to BC was very high. TheMBCmeasured by COSMOS also well agreed with elemental carbon measurements. Our results demonstrate the high reliability of COSMOS measurements under various environments.Copyright © 2019 American Association for Aerosol Research
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影响因子：
16.6
作者：
Matsui H;Hamilton DS;Mahowald NM
通讯作者：
Mahowald NM
大西洋和太平洋盆地之间偏远黑碳气溶胶负荷的强烈对比
DOI：
10.1029/2018jd029206
发表时间：
2018
期刊：
Journal of Geophysical Research: Atmospheres
影响因子：
--
作者：
J. Katich;B. Samset;T. Bui;M. Dollner;K. Froyd;P. Campuzano‐Jost;B. Nault;J. Schroder;B. Weinzierl;J. Schwarz
通讯作者：
J. Schwarz
影响因子：
5
作者：
Y. Kondo;K. Ram;N. Takegawa;L. Sahu;Y. Morino;X. Liu;T. Ohara
通讯作者：
Y. Kondo;K. Ram;N. Takegawa;L. Sahu;Y. Morino;X. Liu;T. Ohara
2000 年 3 月至 2001 年 3 月在斯瓦尔巴群岛 Zeppelin 站进行的一年颗粒尺寸分布和气溶胶化学成分测量
影响因子：
3.7
作者：
J. Ström;J. Umegård;K. Tørseth;P. Tunved;H. Hansson;K. Holmén;V. Wismann;A. Herber;G. König‐Langlo
通讯作者：
G. König‐Langlo
影响因子：
5.2
作者：
Moteki, Nobuhiro;Kondo, Yutaka
通讯作者：
Kondo, Yutaka