Variability in black carbon mass concentration in surface snow at Svalbard
| العنوان: | Variability in black carbon mass concentration in surface snow at Svalbard |
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| المؤلفون: | David Cappelletti, Andrea Spolaor, Luisa Poto, Krzysztof M. Markowicz, Paolo Laj, Michele Bertò, Stefano Crocchianti, Mauro Mazzola, Jean-Charles Gallet, Elena Barbaro, Anna Rozwadowska, Cristiano Varin, Carlo Barbante |
| المصدر: | Atmospheric Chemistry and Physics, Vol 21, Pp 12479-12493 (2021) Atmospheric chemistry and physics 21 (2021): 12479–12493. doi:10.5194/acp-21-12479-2021 info:cnr-pdr/source/autori: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/titolo:Variability in black carbon mass concentration in surface snow at Svalbard/doi:10.5194%2Facp-21-12479-2021/rivista:Atmospheric chemistry and physics (Print)/anno:2021/pagina_da:12479/pagina_a:12493/intervallo_pagine:12479–12493/volume:21 |
| بيانات النشر: | Copernicus GmbH, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Atmospheric Science, Physics, QC1-999, Forcing (mathematics), snow, Albedo, Snowpack, black carbon, Snow, Atmospheric sciences, Svalbard, Chemistry, Deposition (aerosol physics), Snowmelt, Mass concentration (chemistry), Environmental science, Settore CHIM/01 - Chimica Analitica, Precipitation, QD1-999 |
| الوصف: | 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. |
| وصف الملف: | application/pdf |
| تدمد: | 1680-7324 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f9b3c4f212b27b81f9c6b7be5a67e68 https://doi.org/10.5194/acp-21-12479-2021 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....4f9b3c4f212b27b81f9c6b7be5a67e68 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16807324 |
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