Mass absorption cross section of black carbon for Aethalometer in the Arctic

DOI DOI DOI Web Site 被引用文献1件 参考文献55件 オープンアクセス
  • Mohit Singh
    Department of Earth and Space Sciences, Indian Institute of Space Science and Technology, Thiruvananthapuram, India
  • Yutaka Kondo
    National Institute of Polar Research, Tachikawa, Tokyo, Japan
  • Sho Ohata
    Institute for Space–Earth Environmental Research, Nagoya University, Nagoya, Aichi, Japan
  • Tatsuhiro Mori
    Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Yokohama, Kanagawa, Japan
  • Naga Oshima
    Department of Atmosphere, Ocean and Earth System Modeling Research, Meteorological Research Institute, Tsukuba, Ibaraki, Japan
  • Antti Hyvärinen
    Atmospheric Composition Research Unit, Finnish Meteorological Institute, Helsinki, Finland
  • John Backman
    Atmospheric Composition Research Unit, Finnish Meteorological Institute, Helsinki, Finland
  • Eija Asmi
    Atmospheric Composition Research Unit, Finnish Meteorological Institute, Helsinki, Finland
  • Henri Servomaa
    Atmospheric Composition Research Unit, Finnish Meteorological Institute, Helsinki, Finland
  • Franz Martin Schnaiter
    Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, Germany
  • Elisabeth Andrews
    CIRES, University of Colorado, Boulder, Colorado, USA
  • Sangeeta Sharma
    Climate Research Division, Environment and Climate Change Canada, Climate Chemistry Measurements Research, Toronto, Ontario, Canada
  • Kostas Eleftheriadis
    Institute of Nuclear and Radiological Science & Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, Attiki, Greece
  • Stergios Vratolis
    Institute of Nuclear and Radiological Science & Technology, Energy & Safety, National Centre for Scientific Research “Demokritos”, Attiki, Greece
  • Yongjing Zhao
    Air Quality Research Center, University of California-Davis, Davis, California, USA
  • Makoto Koike
    Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan
  • Nobuhiro Moteki
    Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan
  • P. R. Sinha
    Department of Earth and Space Sciences, Indian Institute of Space Science and Technology, Thiruvananthapuram, India

書誌事項

公開日
2024-03-18
資源種別
journal article
DOI
  • 10.1080/02786826.2024.2316173
  • 10.6084/m9.figshare.25431953
  • 10.6084/m9.figshare.25431953.v1
公開者
Informa UK Limited

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説明

Long-term measurements of the mass concentration of black carbon (BC) in the atmosphere (MBC) with well-constrained accuracy are indispensable to quantify its emission, transport, and deposition. The aerosol light absorption coefficient (babs), usually measured by a filter-based absorption photometer, including an Aethalometer (AE), is often used to estimate MBC. The measured babs is converted to MBC by assuming a value for the mass absorption cross section (MAC). Previously, we derived the MAC for AE (MAC (AE)) from measured babs and independently measured MBC values at two sites in the Arctic. MBC was measured with a filter-based absorption photometer with a heated inlet (COSMOS). The accuracy of the COSMOS-derived MBC (MBC (COSMOS)) was within about 15%. Here, we obtained additional MAC (AE) measurements to improve understanding of its variability and uncertainty. We measured babs (AE) and MBC (COSMOS) at Alert (2018–2020), Barrow (2012–2022), Ny-Ålesund (2012–2019), and Pallas (2019–2022). At Pallas, we also obtained four-wavelength photoacoustic aerosol absorption spectrometer (PAAS-4λ) measurements of babs. babs (AE) and MBC (COSMOS) were tightly correlated; the average MAC (AE) at the four sites was 11.4 ± 1.2 m2 g−1 (mean ± 1σ) at 590 nm and 7.76 ± 0.73 m2 g−1 at 880 nm. The spatial variability of MAC (AE) was about 11% (1σ), and its year-to-year variability was about 18%. We compared MAC (AE) in the Arctic with values at mid-latitudes, measured by previous studies, and with values obtained by using other types of filter-based absorption photometer, and PAAS-4λ. Copyright © 2024 American Association for Aerosol Research

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