A Year-Round Measurement of Water-Soluble Trace and Rare Earth Elements in Arctic Aerosol: Possible Inorganic Tracers of Specific Events

Turetta, Clara; Feltracco, Matteo; Barbaro, Elena; Spolaor, Andrea; Barbante, Carlo; Gambaro, Andrea

doi:10.3390/atmos12060694

Cited by 4 publications

(2 citation statements)

References 40 publications

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“…Our data support the hypothesis related to the local sources' activation in enhancing the dry deposition impacts in an old mining town such as Ny-Ålesund. Especially during poor snow cover conditions, as during the snowmelt season, coarse-mode particles as residuals of carbon extraction mining activities are available for wind lift\suspension (Vecchiato et al, 2018). The possible effect of local sources' activation is further supported by a recent analysis of the Brøggerbreen glacier and Ny-Ålesund annual snowpack.…”

Section: Statistical Resultsmentioning

confidence: 90%

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Variability in black carbon mass concentration in surface snow at Svalbard

et al. 2021

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Abstract. 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.

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Section: Statistical Resultsmentioning

confidence: 90%

“…The possible effect of local sources' activation is further supported by a recent analysis of the Brøggerbreen glacier and Ny-Ålesund annual snowpack. This analysis shows the presence of retene (an organic compound frequently used to track the presence of coal), most likely due to local sources (Vecchiato et al, 2018).…”

Section: Statistical Resultsmentioning

confidence: 96%

Variability in black carbon mass concentration in surface snow at Svalbard

et al. 2021

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First evidence of benzothiazoles in arctic aerosols: Seasonal trend and sources attribution

Barbaro,

Feltracco,

Ulgelmo

et al. 2024

Science of The Total Environment

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The Ny-Ålesund Aerosol Cloud Experiment (NASCENT): Overview and First Results

Pasquier

David

Freitas

et al. 2022

Bulletin of the American Meteorological Society

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The Arctic is warming at more than twice the rate of the global average. This warming is influenced by clouds which modulate the solar and terrestrial radiative fluxes, and thus, determine the surface energy budget. However, the interactions among clouds, aerosols, and radiative fluxes in the Arctic are still poorly understood. To address these uncertainties, the Ny-Ålesund AeroSol Cloud ExperimeNT (NASCENT) study was conducted from September 2019 to August 2020 in Ny-Ålesund Svalbard. The campaign’s primary goal was to elucidate the life cycle of aerosols in the Arctic and to determine how they modulate cloud properties throughout the year. In-situ and remote sensing observations were taken on the ground at sea-level and at a mountaintop station, and with a tethered balloon system. An overview of the meteorological and the main aerosol seasonality encountered during the NASCENT year is introduced, followed by a presentation of first scientific highlights. In particular, we present new findings on aerosol physicochemical properties which also include molecular properties. Further, the role of cloud droplet activation and ice crystal nucleation in the formation and persistence of mixed-phase clouds, and the occurrence of secondary ice processes, are discussed and compared to the representation of cloud processes within the regional Weather Research and Forecasting model. The paper concludes with research questions that are to be addressed in upcoming NASCENT publications.

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A Year-Round Measurement of Water-Soluble Trace and Rare Earth Elements in Arctic Aerosol: Possible Inorganic Tracers of Specific Events

Cited by 4 publications

References 40 publications

Variability in black carbon mass concentration in surface snow at Svalbard

Variability in black carbon mass concentration in surface snow at Svalbard

First evidence of benzothiazoles in arctic aerosols: Seasonal trend and sources attribution

The Ny-Ålesund Aerosol Cloud Experiment (NASCENT): Overview and First Results

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