Variability of Black Carbon mass concentration in surface snow at Svalbard
Black Carbon (BC) is a significant forcing agent in the Arctic, but substantial uncertainty remains to quantify its climate effects due to the complexity of the different mechanisms involved, in particular related to processes in the snow-pack after deposition. In this study, we provide detailed and...
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ftcopernicus:oai:publications.copernicus.org:acpd92374 2023-05-15T13:11:37+02:00 Variability of Black Carbon mass concentration in surface snow at Svalbard Bertò, Michele Cappelletti, David Barbaro, Elena Varin, Cristiano Gallet, Jean-Charles Markowicz, Krzysztof Rozwadowska, Anna Mazzola, Mauro Crocchianti, Stefano Poto, Luisa Laj, Paolo Barbante, Carlo Spolaor, Andrea 2021-04-07 application/pdf https://doi.org/10.5194/acp-2021-39 https://acp.copernicus.org/preprints/acp-2021-39/ eng eng doi:10.5194/acp-2021-39 https://acp.copernicus.org/preprints/acp-2021-39/ eISSN: 1680-7324 Text 2021 ftcopernicus https://doi.org/10.5194/acp-2021-39 2021-04-12T16:22:14Z Black Carbon (BC) is a significant forcing agent in the Arctic, but substantial uncertainty remains to quantify its climate effects due to the complexity of the different mechanisms involved, in particular related to processes in the snow-pack after deposition. In this study, we provide detailed and unique information on the evolution and variability of BC content in the upper surface snow layer during the spring period in Svalbard (Ny-Ålesund). Two different snow-sampling strategies were adopted during spring 2014 and 2015, providing the refractory BC (rBC) mass concentration variability on a seasonal/daily and daily/hourly time scales. The present work aims to identify which atmospheric variables could interact and modify the mass concentration of BC in the upper snowpack, the snow layer which BC particles affects the snow albedo. Despite the low BC mass concentrations, a relatively high daily variability was observed. Atmospheric, meteorological, and snow-related physico-chemical parameters were considered in a multiple statistical model to separate the factors determining observations. Precipitation events were the main drivers of the BC variability. Snow metamorphism and activation of local sources during the snow melting periods appeared to play a non-negligible role (wind resuspension in specific Arctic areas where coal mines were present). The BC content in the snow resulted in being statistically decoupled from the atmospheric BC load. Text albedo Arctic black carbon Ny Ålesund Ny-Ålesund Svalbard Copernicus Publications: E-Journals Arctic Ny-Ålesund Svalbard |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Black Carbon (BC) is a significant forcing agent in the Arctic, but substantial uncertainty remains to quantify its climate effects due to the complexity of the different mechanisms involved, in particular related to processes in the snow-pack after deposition. In this study, we provide detailed and unique information on the evolution and variability of BC content in the upper surface snow layer during the spring period in Svalbard (Ny-Ålesund). Two different snow-sampling strategies were adopted during spring 2014 and 2015, providing the refractory BC (rBC) mass concentration variability on a seasonal/daily and daily/hourly time scales. The present work aims to identify which atmospheric variables could interact and modify the mass concentration of BC in the upper snowpack, the snow layer which BC particles affects the snow albedo. Despite the low BC mass concentrations, a relatively high daily variability was observed. Atmospheric, meteorological, and snow-related physico-chemical parameters were considered in a multiple statistical model to separate the factors determining observations. Precipitation events were the main drivers of the BC variability. Snow metamorphism and activation of local sources during the snow melting periods appeared to play a non-negligible role (wind resuspension in specific Arctic areas where coal mines were present). The BC content in the snow resulted in being statistically decoupled from the atmospheric BC load. |
format |
Text |
author |
Bertò, Michele Cappelletti, David Barbaro, Elena Varin, Cristiano Gallet, Jean-Charles Markowicz, Krzysztof Rozwadowska, Anna Mazzola, Mauro Crocchianti, Stefano Poto, Luisa Laj, Paolo Barbante, Carlo Spolaor, Andrea |
spellingShingle |
Bertò, Michele Cappelletti, David Barbaro, Elena Varin, Cristiano Gallet, Jean-Charles Markowicz, Krzysztof Rozwadowska, Anna Mazzola, Mauro Crocchianti, Stefano Poto, Luisa Laj, Paolo Barbante, Carlo Spolaor, Andrea Variability of Black Carbon mass concentration in surface snow at Svalbard |
author_facet |
Bertò, Michele Cappelletti, David Barbaro, Elena Varin, Cristiano Gallet, Jean-Charles Markowicz, Krzysztof Rozwadowska, Anna Mazzola, Mauro Crocchianti, Stefano Poto, Luisa Laj, Paolo Barbante, Carlo Spolaor, Andrea |
author_sort |
Bertò, Michele |
title |
Variability of Black Carbon mass concentration in surface snow at Svalbard |
title_short |
Variability of Black Carbon mass concentration in surface snow at Svalbard |
title_full |
Variability of Black Carbon mass concentration in surface snow at Svalbard |
title_fullStr |
Variability of Black Carbon mass concentration in surface snow at Svalbard |
title_full_unstemmed |
Variability of Black Carbon mass concentration in surface snow at Svalbard |
title_sort |
variability of black carbon mass concentration in surface snow at svalbard |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-2021-39 https://acp.copernicus.org/preprints/acp-2021-39/ |
geographic |
Arctic Ny-Ålesund Svalbard |
geographic_facet |
Arctic Ny-Ålesund Svalbard |
genre |
albedo Arctic black carbon Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
albedo Arctic black carbon Ny Ålesund Ny-Ålesund Svalbard |
op_source |
eISSN: 1680-7324 |
op_relation |
doi:10.5194/acp-2021-39 https://acp.copernicus.org/preprints/acp-2021-39/ |
op_doi |
https://doi.org/10.5194/acp-2021-39 |
_version_ |
1766248176180789248 |