Atmospheric composition in the European Arctic and 30 years of the Zeppelin Observatory, Ny-Ålesund

Platt, Stephen Matthew; Hov, Øystein; Berg, Torunn; Breivik, Knut; Eckhardt, Sabine; Eleftheriadis, Konstantinos; Evangeliou, Nikolaos; Fiebig, Markus; Fisher, Rebecca E.; Hansen, Georg; Hansson, Hans‐Christen; Heintzenberg, Jost; Hermansen, Ove; Heslin-Rees, Dominic; Holmén, Kim; Hudson, Stephen R.; Kallenborn, Roland; Krejci, Radovan; Krognes, Terje; Larssen, Steinar; Lowry, David; Myhre, Cathrine Lund; Lunder, Chris Rene; Nisbet, E. G.; Nizzetto, Pernilla Bohlin; Park, Ki-Tae; Pedersen, C. A.; Pfaffhuber, Katrine Aspmo; Röckmann, Thomas; Schmidbauer, Norbert; Solberg, Sverre; Stohl, Andreas; Ström, Johan; Svendby, Tove Marit; Tunved, Peter; Tørnkvist, Kjersti Karlsen; Veen, Carina van der; Vratolis, Stergios; Yoon, Young Jun; Yttri, Karl Espen; Zieger, Paul; Aas, Wenche; Tørseth, Kjetil

doi:10.5194/acp-22-3321-2022

Cited by 36 publications

(37 citation statements)

References 157 publications

(224 reference statements)

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“…We utilized comprehensive measurements from the Ny-Ålesund research station sites, Zeppelin observatory (Platt et al, 2022), and Gruvebadet during the period of 1-25 May 2018. Since 2017, the atmospheric observatory at Gruvebadet, which is located about 700 m southwest of Ny-Ålesund village at almost sea level (67 m.s.l.…”

Section: Measurementsmentioning

confidence: 99%

Secondary aerosol formation in marine Arctic environments: a model measurement comparison at Ny-Ålesund

et al. 2022

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Abstract. In this study, we modeled the aerosol particle formation along air mass trajectories arriving at the remote Arctic research stations Gruvebadet (67 m a.s.l.) and Zeppelin (474 m a.s.l.), Ny-Ålesund, during May 2018. The aim of this study was to improve our understanding of processes governing secondary aerosol formation in remote Arctic marine environments. We run the Lagrangian chemistry transport model ADCHEM, along air mass trajectories generated with FLEXPART v10.4. The air masses arriving at Ny-Ålesund spent most of their time over the open ice-free ocean. In order to capture the secondary aerosol formation from the DMS emitted by phytoplankton from the ocean surface, we implemented a recently developed comprehensive DMS and halogen multi-phase oxidation chemistry scheme, coupled with the widely used Master Chemical Mechanism (MCM). The modeled median particle number size distributions are in close agreement with the observations in the marine-influenced boundary layer near-sea-surface Gruvebadet site. However, while the model reproduces the accumulation mode particle number concentrations at Zeppelin, it overestimates the Aitken mode particle number concentrations by a factor of ∼5.5. We attribute this to the deficiency of the model to capture the complex orographic effects on the boundary layer dynamics at Ny-Ålesund. However, the model reproduces the average vertical particle number concentration profiles within the boundary layer (0–600 m a.s.l.) above Gruvebadet, as measured with condensation particle counters (CPCs) on board an unmanned aircraft system (UAS). The model successfully reproduces the observed Hoppel minima, often seen in particle number size distributions at Ny-Ålesund. The model also supports the previous experimental findings that ion-mediated H2SO4–NH3 nucleation can explain the observed new particle formation in the marine Arctic boundary layer in the vicinity of Ny-Ålesund. Precursors resulting from gas- and aqueous-phase DMS chemistry contribute to the subsequent growth of the secondary aerosols. The growth of particles is primarily driven via H2SO4 condensation and formation of methane sulfonic acid (MSA) through the aqueous-phase ozonolysis of methane sulfinic acid (MSIA) in cloud and deliquescent droplets.

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Section: Measurementsmentioning

confidence: 99%

Secondary aerosol formation in marine Arctic environments: a model measurement comparison at Ny-Ålesund

et al. 2022

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“…1b), with an inlet height of 480 m a.s.l. (Platt et al, 2022). The station is representative of Arctic background conditions.…”

Section: Samplingmentioning

confidence: 99%

“…The station is representative of Arctic background conditions. The observatory is often covered by low-level clouds, making it suitable for studying aerosol-cloud interactions in the Arctic (Dekhtyareva et al, 2018;Platt et al, 2022;Koike et al, 2019;Tunved et al, 2013;Karlsson et al, 2021).…”

Section: Samplingmentioning

confidence: 99%

“…Deposition of lightabsorbing particles, such as mineral dust and black carbon, reduces the surface albedo of snow and ice and accelerates their melting (Aoki et al, 2014). Information on aerosol properties such as compositions, size distributions, and atmospheric mass and number concentrations are widely monitored over the Arctic to understand their climatological contributions (e.g., Abbatt et al, 2019;Platt et al, 2022). Information on individual particle properties is also important to understand the fundamental chemical and physical processes of aerosol particles (e.g., Laskin et al, 2016;Buseck and Pósfai, 1999;Pósfai and Buseck, 2010;Adachi et al, 2010;Krieger et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The observations for this study were conducted at the Zeppelin Observatory near Ny-Ålesund, Svalbard, Norway. The observation site is designed to monitor the Arctic background air and has been operating since 1989 (Platt et al, 2022;Lee et al, 2020;Tunved et al, 2013;Karl et al, 2019;Dekhtyareva et al, 2018;Karlsson et al, 2021). Additionally, continuous CVI sampling of cloud particles has been conducted since November 2015 (Karlsson et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Composition and mixing state of Arctic aerosol and cloud residual particles from long-term single-particle observations at Zeppelin Observatory, Svalbard

et al. 2022

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Abstract. The Arctic region is sensitive to climate change and is warming faster than the global average. Aerosol particles change cloud properties by acting as cloud condensation nuclei and ice-nucleating particles, thus influencing the Arctic climate system. Therefore, understanding the aerosol particle properties in the Arctic is needed to interpret and simulate their influences on climate. In this study, we collected ambient aerosol particles using whole-air and PM10 inlets and residual particles of cloud droplets and ice crystals from Arctic low-level clouds (typically, all-liquid or mixed-phase clouds) using a counterflow virtual impactor inlet at the Zeppelin Observatory near Ny-Ålesund, Svalbard, within a time frame of 4 years. We measured the composition and mixing state of individual fine-mode particles in 239 samples using transmission electron microscopy. On the basis of their composition, the aerosol and cloud residual particles were classified as mineral dust, sea salt, K-bearing, sulfate, and carbonaceous particles. The number fraction of aerosol particles showed seasonal changes, with sulfate dominating in summer and sea salt increasing in winter. There was no measurable difference in the fractions between ambient aerosol and cloud residual particles collected at ambient temperatures above 0 ∘C. On the other hand, cloud residual samples collected at ambient temperatures below 0 ∘C had several times more sea salt and mineral dust particles and fewer sulfates than ambient aerosol samples, suggesting that sea spray and mineral dust particles may influence the formation of cloud particles in Arctic mixed-phase clouds. We also found that 43 % of mineral dust particles from cloud residual samples were mixed with sea salt, whereas only 18 % of mineral dust particles in ambient aerosol samples were mixed with sea salt. This study highlights the variety in aerosol compositions and mixing states that influence or are influenced by aerosol–cloud interactions in Arctic low-level clouds.

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Spatial variability and temporal changes of POPs in European background air

Halvorsen

Bohlin‐Nizzetto

Eckhardt

et al. 2023

Atmospheric Environment

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Atmospheric composition in the European Arctic and 30 years of the Zeppelin Observatory, Ny-Ålesund

Cited by 36 publications

References 157 publications

Secondary aerosol formation in marine Arctic environments: a model measurement comparison at Ny-Ålesund

Secondary aerosol formation in marine Arctic environments: a model measurement comparison at Ny-Ålesund

Composition and mixing state of Arctic aerosol and cloud residual particles from long-term single-particle observations at Zeppelin Observatory, Svalbard

Spatial variability and temporal changes of POPs in European background air

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