Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer
After aerosol deposition from the atmosphere, black carbon (BC) takes part in the snow albedo feed- back contributing to the modification of the Arctic radiative budget. With the initial goal of quantifying the concentra- tion of BC in the Arctic snow and subsequent climatic im- pacts, snow samples...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Copernicus Publications on behalf of the European Geosciences Union
2021
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/54282/ https://epic.awi.de/id/eprint/54282/1/2021-Zanatta-etal-ACP.pdf https://hdl.handle.net/10013/epic.ea809df2-bdb3-4c2d-a1cd-e18d1274b8ab |
id |
ftawi:oai:epic.awi.de:54282 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:54282 2024-09-15T17:35:57+00:00 Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer Zanatta, Marco Herber, Andreas Juranyi, Zsofia Eppers, Oliver Schneider, Johannes Schwaz, Joshua P. 2021-06-17 application/pdf https://epic.awi.de/id/eprint/54282/ https://epic.awi.de/id/eprint/54282/1/2021-Zanatta-etal-ACP.pdf https://hdl.handle.net/10013/epic.ea809df2-bdb3-4c2d-a1cd-e18d1274b8ab unknown Copernicus Publications on behalf of the European Geosciences Union https://epic.awi.de/id/eprint/54282/1/2021-Zanatta-etal-ACP.pdf Zanatta, M. , Herber, A. orcid:0000-0001-6651-3835 , Juranyi, Z. , Eppers, O. , Schneider, J. and Schwaz, J. P. (2021) Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer , Atmosheric Chemistry and Physics, 21 , pp. 9329-9342 . doi:10.5194/acp-21-9329-2021 <https://doi.org/10.5194/acp-21-9329-2021> , hdl:10013/epic.ea809df2-bdb3-4c2d-a1cd-e18d1274b8ab EPIC3Atmosheric Chemistry and Physics, Copernicus Publications on behalf of the European Geosciences Union, 21, pp. 9329-9342 Article isiRev 2021 ftawi https://doi.org/10.5194/acp-21-9329-2021 2024-06-24T04:27:29Z After aerosol deposition from the atmosphere, black carbon (BC) takes part in the snow albedo feed- back contributing to the modification of the Arctic radiative budget. With the initial goal of quantifying the concentra- tion of BC in the Arctic snow and subsequent climatic im- pacts, snow samples were collected during the research ves- sel (R/V) Polarstern expedition of PASCAL (Physical Feed- backs of Arctic Boundary Layer, Sea Ice, Cloud and Aerosol; Polarstern cruise 106) in the sea-ice-covered Fram Strait in early summer 2017. The refractory BC (rBC) content was then measured in the laboratory of the Alfred Wegener In- stitute with the single particle soot photometer (SP2). Based on the strong observational correlations between both rBC concentration and rBC diameter with snow salinity, we hy- pothesize a salt-induced matrix effect interfering with the SP2 analysis. This paper evaluates the impact of sea salt, based on the measurement of electrical conductivity (κ) in water samples, on rBC measurements made with a SP2 neb- ulizer technique. Under realistic salinity conditions, labora- tory experiments indicated a dramatic six-fold reduction in observed rBC concentration with increasing salinity. In the salinity conditions tested in the present work (salt concen- tration below 0.4 g L−1) the impact of salt on the nebuliza- tion of water droplets might be negligible. However, the SP2 mass detection efficiency systematically decreased with in- creasing salinity, with the smaller rBC particles being preferentially undetected. The high concentration of suspended salt particles and the formation of thick salt coatings on rBC cores caused problems in the SP2 analog-to-digital conver- sion of the signal and incandescence quenching, respectively. Changes to the signal acquisition parameters and the laser power of the SP2 improved the mass detection efficiency, which, nonetheless, stayed below unity. The present work provides evidence that a high concentration of sea salt un- dermines the quantification of rBC in ... Article in Journal/Newspaper albedo black carbon Fram Strait Sea ice Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Atmospheric Chemistry and Physics 21 12 9329 9342 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
After aerosol deposition from the atmosphere, black carbon (BC) takes part in the snow albedo feed- back contributing to the modification of the Arctic radiative budget. With the initial goal of quantifying the concentra- tion of BC in the Arctic snow and subsequent climatic im- pacts, snow samples were collected during the research ves- sel (R/V) Polarstern expedition of PASCAL (Physical Feed- backs of Arctic Boundary Layer, Sea Ice, Cloud and Aerosol; Polarstern cruise 106) in the sea-ice-covered Fram Strait in early summer 2017. The refractory BC (rBC) content was then measured in the laboratory of the Alfred Wegener In- stitute with the single particle soot photometer (SP2). Based on the strong observational correlations between both rBC concentration and rBC diameter with snow salinity, we hy- pothesize a salt-induced matrix effect interfering with the SP2 analysis. This paper evaluates the impact of sea salt, based on the measurement of electrical conductivity (κ) in water samples, on rBC measurements made with a SP2 neb- ulizer technique. Under realistic salinity conditions, labora- tory experiments indicated a dramatic six-fold reduction in observed rBC concentration with increasing salinity. In the salinity conditions tested in the present work (salt concen- tration below 0.4 g L−1) the impact of salt on the nebuliza- tion of water droplets might be negligible. However, the SP2 mass detection efficiency systematically decreased with in- creasing salinity, with the smaller rBC particles being preferentially undetected. The high concentration of suspended salt particles and the formation of thick salt coatings on rBC cores caused problems in the SP2 analog-to-digital conver- sion of the signal and incandescence quenching, respectively. Changes to the signal acquisition parameters and the laser power of the SP2 improved the mass detection efficiency, which, nonetheless, stayed below unity. The present work provides evidence that a high concentration of sea salt un- dermines the quantification of rBC in ... |
format |
Article in Journal/Newspaper |
author |
Zanatta, Marco Herber, Andreas Juranyi, Zsofia Eppers, Oliver Schneider, Johannes Schwaz, Joshua P. |
spellingShingle |
Zanatta, Marco Herber, Andreas Juranyi, Zsofia Eppers, Oliver Schneider, Johannes Schwaz, Joshua P. Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
author_facet |
Zanatta, Marco Herber, Andreas Juranyi, Zsofia Eppers, Oliver Schneider, Johannes Schwaz, Joshua P. |
author_sort |
Zanatta, Marco |
title |
Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
title_short |
Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
title_full |
Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
title_fullStr |
Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
title_full_unstemmed |
Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
title_sort |
technical note: sea salt interference with black carbon quantification in snow samples using the single particle soot photometer |
publisher |
Copernicus Publications on behalf of the European Geosciences Union |
publishDate |
2021 |
url |
https://epic.awi.de/id/eprint/54282/ https://epic.awi.de/id/eprint/54282/1/2021-Zanatta-etal-ACP.pdf https://hdl.handle.net/10013/epic.ea809df2-bdb3-4c2d-a1cd-e18d1274b8ab |
genre |
albedo black carbon Fram Strait Sea ice |
genre_facet |
albedo black carbon Fram Strait Sea ice |
op_source |
EPIC3Atmosheric Chemistry and Physics, Copernicus Publications on behalf of the European Geosciences Union, 21, pp. 9329-9342 |
op_relation |
https://epic.awi.de/id/eprint/54282/1/2021-Zanatta-etal-ACP.pdf Zanatta, M. , Herber, A. orcid:0000-0001-6651-3835 , Juranyi, Z. , Eppers, O. , Schneider, J. and Schwaz, J. P. (2021) Technical note: Sea salt interference with black carbon quantification in snow samples using the single particle soot photometer , Atmosheric Chemistry and Physics, 21 , pp. 9329-9342 . doi:10.5194/acp-21-9329-2021 <https://doi.org/10.5194/acp-21-9329-2021> , hdl:10013/epic.ea809df2-bdb3-4c2d-a1cd-e18d1274b8ab |
op_doi |
https://doi.org/10.5194/acp-21-9329-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
12 |
container_start_page |
9329 |
op_container_end_page |
9342 |
_version_ |
1810486387658457088 |