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Determination of iron species in Arctic water by optimized photothermal beam deflection spectroscopy
Hanna Budasheva, Dorota Korte, Arne Bratkič, Mladen Franko, 2018, published scientific conference contribution abstract

Found in: ključnih besedah
Keywords: phototermal beam deflection spectroscopy, arctic water, iron species
Published: 16.07.2018; Views: 2829; Downloads: 0
.pdf Fulltext (777,92 KB)

Aeolian dispersal of bacteria in southwest Greenland: their sources, abundance, diversity and physiological states
Tina Šantl Temkiv, Ulrich Gosewinkel, Piotr Starnawski, Mark Lever, Kai Finster, 2018, original scientific article

Found in: ključnih besedah
Summary of found: ... arctic microbial communities, aeolian dispersal, community assembly, 16S...
Keywords: arctic microbial communities, aeolian dispersal, community assembly, 16S ribosomal RNA, microbial activity, atmospheric processes
Published: 04.01.2021; Views: 1184; Downloads: 0
.pdf Fulltext (1,51 MB)

Equal abundance of summertime natural and wintertime anthropogenic Arctic organic aerosols
Olga Popovicheva, Tuuka Petäjä, Andreas Massling, Jakob K. Nøjgaard, Jean-Luc Jaffrezo, Lin Huang, Heidi Hellén, Hannele Hakola, Wendy Zhang, Mika Vestenius, Henrik Skov, Sangeeta Sharma, Mirko Severi, Jürgen Schnelle-Kreis, Claire E. Moffett, Konstantinos Eleftheriadis, Giulia Calzolai, Silvia Becagli, Wenche Aas, Pragati Rai, Francesco Canonaco, Kaspar R. Daellenbach, Houssni Lamkaddam, Roberto Casotto, Deepika Bhattu, Katja Dzepina, Vaios Moschos, Rebecca J. Sheesley, Rita Traversi, Karl Espen Yttri, Julia Schmale, André S. H. Prévôt, Urs Baltensperger, Imad El Haddad, 2022, original scientific article

Abstract: Aerosols play an important yet uncertain role in modulating the radiation balance of the sensitive Arctic atmosphere. Organic aerosol is one of the most abundant, yet least understood, fractions of the Arctic aerosol mass. Here we use data from eight observatories that represent the entire Arctic to reveal the annual cycles in anthropogenic and biogenic sources of organic aerosol. We show that during winter, the organic aerosol in the Arctic is dominated by anthropogenic emissions, mainly from Eurasia, which consist of both direct combustion emissions and long-range transported, aged pollution. In summer, the decreasing anthropogenic pollution is replaced by natural emissions. These include marine secondary, biogenic secondary and primary biological emissions, which have the potential to be important to Arctic climate by modifying the cloud condensation nuclei properties and acting as ice-nucleating particles. Their source strength or atmospheric processing is sensitive to nutrient availability, solar radiation, temperature and snow cover. Our results provide a comprehensive understanding of the current pan-Arctic organic aerosol, which can be used to support modelling efforts that aim to quantify the climate impacts of emissions in this sensitive region.
Found in: ključnih besedah
Keywords: Arctic, Organic aerosols, Emission sources, Climate change
Published: 01.03.2022; Views: 397; Downloads: 0
.pdf Fulltext (1,89 MB)

Siberian Arctic black carbon
Nikolay S. Kasimov, Marina A. Chichaeva, Konstantinos Eleftheriadis, Asta Gregorič, Vasilii O. Kobelev, Nikolaos Evangeliou, Olga B. Popovicheva, 2022, original scientific article

Found in: ključnih besedah
Keywords: black carbon, Arctic, gas flaring, wildfire
Published: 09.05.2022; Views: 226; Downloads: 0
.pdf Fulltext (10,16 MB)

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