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

Long-term measurements of the mass concentration of black carbon (BC) in the atmosphere ( M BC ) with well-constrained accuracy are indispensable to quantify its emission, transport, and deposition. The aerosol light absorption coefficient ( b abs ), usually measured by a filter-based absorption pho...

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Bibliographic Details
Main Authors: Singh, Mohit, Kondo, Yutaka, Ohata, Sho, Mori, Tatsuhiro, Oshima, Naga, Hyvärinen, Antti, Backman, John, Asmi, Eija, Servomaa, Henri, Schnaiter, Franz Martin, Andrews, Elisabeth, Sharma, Sangeeta, Eleftheriadis, Kostas, Vratolis, Stergios, Zhao, Yongjing, Koike, Makoto, Moteki, Nobuhiro, Sinha, P. R.
Format: Text
Language:unknown
Published: Taylor & Francis 2024
Subjects:
Biochemistry
Space Science
Physiology
FOS Biological sciences
Pharmacology
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Ecology
Astronomical and Space Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified
Cancer
Plant Biology
Computational Biology
Arctic
black carbon
Ny Ålesund
Ny-Ålesund
Online Access:https://dx.doi.org/10.6084/m9.figshare.25431953
https://tandf.figshare.com/articles/journal_contribution/Mass_absorption_cross_section_of_black_carbon_for_Aethalometer_in_the_Arctic/25431953
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Summary:Long-term measurements of the mass concentration of black carbon (BC) in the atmosphere ( M BC ) with well-constrained accuracy are indispensable to quantify its emission, transport, and deposition. The aerosol light absorption coefficient ( b abs ), usually measured by a filter-based absorption photometer, including an Aethalometer (AE), is often used to estimate M BC . The measured b abs is converted to M BC by assuming a value for the mass absorption cross section (MAC). Previously, we derived the MAC for AE (MAC (AE)) from measured b abs and independently measured M BC values at two sites in the Arctic. M BC was measured with a filter-based absorption photometer with a heated inlet (COSMOS). The accuracy of the COSMOS-derived M BC ( M BC (COSMOS)) was within about 15%. Here, we obtained additional MAC (AE) measurements to improve understanding of its variability and uncertainty. We measured b abs (AE) and M BC (COSMOS) at Alert (2018–2020), Barrow (2012–2022), Ny-Ålesund (2012–2019), and Pallas ...

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