Variability in 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 snowpack after deposition. In this study, we provide detailed and...
Published in: | Atmospheric Chemistry and Physics |
---|---|
Main Authors: | , , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
2021
|
Subjects: | |
Online Access: | https://doi.org/10.5194/acp-21-12479-2021 https://acp.copernicus.org/articles/21/12479/2021/ |
id |
ftcopernicus:oai:publications.copernicus.org:acp92374 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:acp92374 2023-05-15T13:12:00+02:00 Variability in 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 2021-08-19 application/pdf https://doi.org/10.5194/acp-21-12479-2021 https://acp.copernicus.org/articles/21/12479/2021/ eng eng doi:10.5194/acp-21-12479-2021 https://acp.copernicus.org/articles/21/12479/2021/ eISSN: 1680-7324 Text 2021 ftcopernicus https://doi.org/10.5194/acp-21-12479-2021 2021-08-23T16:22:28Z 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 snowpack after deposition. In this study, we provide detailed and unique information on the evolution and variability in BC content in the upper surface snow layer during the spring period in Svalbard (Ny-Ålesund). A total of two different snow-sampling strategies were adopted during spring 2014 (from 1 April to 24 June) and during a specific period in 2015 (28 April to 1 May), providing the refractory BC (rBC) mass concentration variability on a seasonal variability with a daily resolution (hereafter seasonal/daily) and daily variability with an hourly sampling resolution (hereafter daily/hourly) timescales. The present work aims to identify which atmospheric variables could interact with and modify the mass concentration of BC in the upper snowpack, which is the snow layer where BC particles affects the snow albedo. Atmospheric, meteorological and snow-related physico-chemical parameters were considered in a multiple linear regression model to identify the factors that could explain the variations in BC mass concentrations during the observation period. Precipitation events were the main drivers of the BC variability during the seasonal experiment; however, in the high-resolution sampling, a negative association has been found. Snow metamorphism and the activation of local sources (Ny-Ålesund was a coal mine settlement) during the snowmelt periods appeared to play a non-negligible role. The statistical analysis suggests that the BC content in the snow is not directly associated to the atmospheric BC load. Text albedo Arctic black carbon Ny Ålesund Ny-Ålesund Svalbard Copernicus Publications: E-Journals Arctic Ny-Ålesund Svalbard Atmospheric Chemistry and Physics 21 16 12479 12493 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
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 snowpack after deposition. In this study, we provide detailed and unique information on the evolution and variability in BC content in the upper surface snow layer during the spring period in Svalbard (Ny-Ålesund). A total of two different snow-sampling strategies were adopted during spring 2014 (from 1 April to 24 June) and during a specific period in 2015 (28 April to 1 May), providing the refractory BC (rBC) mass concentration variability on a seasonal variability with a daily resolution (hereafter seasonal/daily) and daily variability with an hourly sampling resolution (hereafter daily/hourly) timescales. The present work aims to identify which atmospheric variables could interact with and modify the mass concentration of BC in the upper snowpack, which is the snow layer where BC particles affects the snow albedo. Atmospheric, meteorological and snow-related physico-chemical parameters were considered in a multiple linear regression model to identify the factors that could explain the variations in BC mass concentrations during the observation period. Precipitation events were the main drivers of the BC variability during the seasonal experiment; however, in the high-resolution sampling, a negative association has been found. Snow metamorphism and the activation of local sources (Ny-Ålesund was a coal mine settlement) during the snowmelt periods appeared to play a non-negligible role. The statistical analysis suggests that the BC content in the snow is not directly associated to 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 in 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 in black carbon mass concentration in surface snow at Svalbard |
title_short |
Variability in black carbon mass concentration in surface snow at Svalbard |
title_full |
Variability in black carbon mass concentration in surface snow at Svalbard |
title_fullStr |
Variability in black carbon mass concentration in surface snow at Svalbard |
title_full_unstemmed |
Variability in black carbon mass concentration in surface snow at Svalbard |
title_sort |
variability in black carbon mass concentration in surface snow at svalbard |
publishDate |
2021 |
url |
https://doi.org/10.5194/acp-21-12479-2021 https://acp.copernicus.org/articles/21/12479/2021/ |
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-21-12479-2021 https://acp.copernicus.org/articles/21/12479/2021/ |
op_doi |
https://doi.org/10.5194/acp-21-12479-2021 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
21 |
container_issue |
16 |
container_start_page |
12479 |
op_container_end_page |
12493 |
_version_ |
1766249930657103872 |