气候变化领域集成服务门户(CCPortal): Elemental and water-insoluble organic carbon in Svalbard snow: A synthesis of observations during 2007-2018

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DOI	10.5194/acp-21-3035-2021
	Elemental and water-insoluble organic carbon in Svalbard snow: A synthesis of observations during 2007-2018
	Zdanowicz C.; Gallet J.-C.; Björkman M.P.; Larose C.; Schuler T.; Luks B.; Koziol K.; Spolaor A.; Barbaro E.; Martma T.; van Pelt W.; Wideqvist U.; Ström J.
发表日期	2021
ISSN	1680-7316
起始页码	3035
结束页码	3057
卷号	21 期号:4
英文摘要	Light-absorbing carbonaceous aerosols emitted by biomass or fossil fuel combustion can contribute to amplifying Arctic climate warming by lowering the albedo of snow. The Svalbard archipelago, being near to Europe and Russia, is particularly affected by these pollutants, and improved knowledge of their distribution in snow is needed to assess their impact. Here we present and synthesize new data obtained on Svalbard between 2007 and 2018, comprising measurements of elemental (EC) and water-insoluble organic carbon (WIOC) in snow from 37 separate sites. We used these data, combined with meteorological data and snowpack modeling, to investigate the variability of EC and WIOC deposition in Svalbard snow across latitude, longitude, elevation and time. Overall, EC concentrations (CsnowEC ) ranged from < 1.0 to 266.6 ng g−1, while WIOC concentrations (CsnowWIOC) ranged from < 1 to 9426 ng g−1, with the highest values observed near Ny-Ålesund. Calculated snowpack loadings (LECsnow, LWIOCsnow ) on glaciers surveyed in spring 2016 were 0.1 to 2.6 mg m−2 and 2 to 173 mg m−2, respectively. The median CsnowEC and the LECsnow on those glaciers were close to or lower than those found in earlier (2007-2009), comparable surveys. Both LECsnow and LWIOCsnow increased with elevation and snow accumulation, with dry deposition likely playing a minor role. Estimated area-averaged snowpack loads across Svalbard were 1.1 mg EC m−2 and 38.3 mg WIOC m−2 for the 2015-2016 winter. An ∼ 11-year long dataset of spring surface snow measurements from the central Brøgger Peninsula was used to quantify the interannual variability of EC and WIOC deposition in snow. In most years, CsnowEC and CsnowWIOC at Ny-Ålesund (50 m a.s.l.) were 2-5 times higher than on the nearby Austre Brøggerbreen glacier (456 m a.s.l.), and the median EC/WIOC in Ny-Ålesund was 6 times higher, suggesting a possible influence of local EC emission from Ny-Ålesund. While no long-term trends between 2011 and 2018 were found, CsnowEC and CsnowWIOC showed synchronous variations at Ny-Ålesund and Austre Brøggerbreen. When compared with data from other circum-Arctic sites obtained by comparable methods, the median CsnowEC on Svalbard falls between that found in central Greenland (lowest) and those in continental sectors of European Arctic (northern Scandinavia, Russia and Siberia; highest), which is consistent with large-scale patterns of BC in snow reported by surveys based on other methods. © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License.
语种	英语
scopus关键词	aerosol; annual variation; arctic environment; biomass burning; concentration (composition); fossil fuel; organic carbon; precipitation quality; snow; snowpack; Arctic; Broggerhalvoya; Ny-Alesund; Spitsbergen; 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/247103
作者单位	Department of Earth Sciences, Uppsala University, Uppsala, 752 36, Sweden; Norwegian Polar Institute, Tromsø, 9296, Norway; Department of Earth Sciences, University of Gothenburg, Gothenburg, 405 30, Sweden; Environmental Microbial Genomics, École Centrale de Lyon, Université de Lyon, Ecully, 69134, France; Department of Geosciences, University of Oslo, Oslo, 0316, Norway; Institute of Geophysics, Polish Academy of Sciences, Warsaw, 01-452, Poland; Department of Analytical Chemistry, Gdansk ´ University of Technology, Gdansk, 80-233, Poland; Institute of Polar Sciences, ISP-CNR, Venice Mestre, 30170, Italy; Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Mestre, 30172, Italy; Department of Geology, Tallinn University of Technology, Tallinn, 19086, Estonia; Department of Environmental Science, Stockholm University, Stockholm, 106 91, Sweden
推荐引用方式 GB/T 7714	Zdanowicz C.,Gallet J.-C.,Björkman M.P.,et al. Elemental and water-insoluble organic carbon in Svalbard snow: A synthesis of observations during 2007-2018[J],2021,21(4).
APA	Zdanowicz C..,Gallet J.-C..,Björkman M.P..,Larose C..,Schuler T..,...&Ström J..(2021).Elemental and water-insoluble organic carbon in Svalbard snow: A synthesis of observations during 2007-2018.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(4).
MLA	Zdanowicz C.,et al."Elemental and water-insoluble organic carbon in Svalbard snow: A synthesis of observations during 2007-2018".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.4(2021).