气候变化领域集成服务门户(CCPortal): Variability in black carbon mass concentration in surface snow at Svalbard

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DOI	10.5194/acp-21-12479-2021
	Variability in black carbon mass concentration in surface snow at Svalbard
	Bertò M.; Cappelletti D.; Barbaro E.; Varin C.; Gallet J.-C.; Markowicz K.; Rozwadowska A.; Mazzola M.; Crocchianti S.; Poto L.; Laj P.; Barbante C.; Spolaor A.
发表日期	2021
ISSN	1680-7316
起始页码	12479
结束页码	12493
卷号	21 期号:16
英文摘要	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. © 2021 Michele Bertò et al.
语种	英语
scopus关键词	albedo; black carbon; concentration (composition); metamorphism; seasonal variation; snow cover; snowmelt; snowpack; Arctic; Svalbard; Svalbard and Jan Mayen
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246642
作者单位	Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, via Torino, 155, Mestre, Venice, 30172, Italy; Dipartimento di Chimica, Biologia e Biotecnologie, Università Degli Studi di Perugia, Perugia, Italy; CNR-ISP, Institute of Polar Science, National Research Council, via Torino, 155 Mestre, Venice, 30172, Italy; Norwegian Polar Institute, Tromsø, 9296, Norway; Atmospheric Physics Department, Institute of Geophysics, University of Warsaw, Warsaw, Poland; Institute of Oceanology, Polish Academy of Sciences, Sopot, Poland; CNR-ISP, Institute of Polar Science, National Research Council, Via Gobetti 101, Bologna, Italy; CNRS, IRD, Grenoble INP, IGE, Université Grenoble Alpes (UGA) et Grenoble-INP, Grenoble, 38000, France; Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, PSI, Villigen, 5232, Switzerland
推荐引用方式 GB/T 7714	Bertò M.,Cappelletti D.,Barbaro E.,et al. Variability in black carbon mass concentration in surface snow at Svalbard[J],2021,21(16).
APA	Bertò M..,Cappelletti D..,Barbaro E..,Varin C..,Gallet J.-C..,...&Spolaor A..(2021).Variability in black carbon mass concentration in surface snow at Svalbard.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(16).
MLA	Bertò M.,et al."Variability in black carbon mass concentration in surface snow at Svalbard".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.16(2021).