Blar i NILU Brage på forfatter "Becagli, Silvia"
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Aerosol optical properties calculated from size distributions, filter samples and absorption photometer data at Dome C, Antarctica, and their relationships with seasonal cycles of sources
Virkkula, Aki; Grythe, Henrik; Backman, John; Petäjä, Tuukka; Busetto, Maurizio; Lanconelli, Christian; Lupi, Angelo; Becagli, Silvia; Traversi, Rita; Severi, Mirko; Vitale, Vito; Sheridan, Patrick; Andrews, Elisabeth (Peer reviewed; Journal article, 2022)Optical properties of surface aerosols at Dome C, Antarctica, in 2007–2013 and their potential source areas are presented. Scattering coefficients (σsp) were calculated from measured particle number size distributions with ... -
Differentiation of coarse-mode anthropogenic, marine and dust particles in the High Arctic islands of Svalbard
Song, Congbo; Dall'Osto, Manuel; Lupi, Angelo; Mazzola, Mauro; Traversi, Rita; Becagli, Silvia; Gilardoni, Stefania; Vratolis, Stergios; Yttri, Karl Espen; Beddows, David C.S.; Schmale, Julia; Brean, James; Kramawijaya, Agung Ghani; Harrison, Roy M.; Shi, Zongbo (Peer reviewed; Journal article, 2021)Understanding aerosol–cloud–climate interactions in the Arctic is key to predicting the climate in this rapidly changing region. Whilst many studies have focused on submicrometer aerosol (diameter less than 1 µm), relatively ... -
Dimethyl Sulfide-Induced Increase in Cloud Condensation Nuclei in the Arctic Atmosphere
Park, Ki-Tae; Yoon, Young Jun; Lee, Kitack; Tunved, Peter; Krejci, Radovan; Ström, Johan; Jang, Eunho; Kang, Hyo Jin; Jang, Seyhun; Park, Jiyeon; Lee, Bang Young; Traversi, Rita; Becagli, Silvia; Hermansen, Ove (Peer reviewed; Journal article, 2021)Oceanic dimethyl sulfide (DMS) emissions have been recognized as a biological regulator of climate by contributing to cloud formation. Despite decades of research, the climatic role of DMS remains ambiguous largely because ... -
Elucidating the present-day chemical composition, seasonality and source regions of climate-relevant aerosols across the Arctic land surface
Moschos, Vaios; Schmale, Julia; Aas, Wenche; Becagli, Silvia; Calzolai, Giulia; Eleftheriadis, Konstantinos; Moffett, Claire E.; Schnelle-Kreis, Jürgen; Severi, Mirko; Sharma, Sangeeta; Skov, Henrik; Vestenius, Mika; Zhang, Wendy; Hakola, Hannele; Hellén, Heidi; Huang, Lin; Jaffrezo, Jean-Luc; Massling, Andreas; Nøjgaard, Jacob Klenø; Petäjä, Tuukka; Popovicheva, Olga; Sheesley, Rebecca J.; Traversi, Rita; Yttri, Karl Espen; Prévôt, André S. H.; Baltensperger, Urs; El Haddad, Imad (Peer reviewed; Journal article, 2022)The Arctic is warming two to three times faster than the global average, and the role of aerosols is not well constrained. Aerosol number concentrations can be very low in remote environments, rendering local cloud radiative ... -
Equal abundance of summertime natural and wintertime anthropogenic Arctic organic aerosols
Moschos, Vaios; Dzepina, Katja; Bhattu, Deepika; Lamkaddam, Houssni; Casotto, Roberto; Daellenbach, Kaspar R.; Canonaco, Francesco; Rai, Pragati; Aas, Wenche; Becagli, Silvia; Calzolai, Giulia; Eleftheriadis, Konstantinos; Moffett, Claire E.; Schnelle-Kreis, Jürgen; Seviri, Mirko; Sharma, Sangeeta; Skov, Henrik; Vestenius, Mika; Zhang, Wendy; Hakola, Hannele; Hellén, Heidi; Huang, Lin; Jaffrezo, Jean-Luc; Massling, Andreas; Nøjgaard, Jacob Klenø; Petäjä, Tuukka; Popovicheva, Olga; Sheesley, Rebecca J.; Traversi, Rita; Yttri, Karl Espen; Schmale, Julia; Prévôt, André S. H.; Baltensperger, Urs; El Haddad, Imad (Peer reviewed; Journal article, 2022)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. ... -
Large seasonal and interannual variations of biogenic sulfur compounds in the Arctic atmosphere (Svalbard; 78.9° N, 11.9° E)
Jang, Sehyun; Park, Ki-Tae; Lee, Kitack; Yoon, Young Jun; Kim, Kitae; Chung, Hyun Young; Jang, Eunho; Becagli, Silvia; Lee, Bang Young; Traversi, Rita; Eleftheriadis, Konstantinos; Krejci, Radovan; Hermansen, Ove (Peer reviewed; Journal article, 2021)Seasonal to interannual variations in the concentrations of sulfur aerosols (< 2.5 µm in diameter; non sea-salt sulfate: NSS-SO2−4; anthropogenic sulfate: Anth-SO2−4; biogenic sulfate: Bio-SO2−4; methanesulfonic acid: MSA) ... -
Model evaluation of short-lived climate forcers for the Arctic Monitoring and Assessment Programme: a multi-species, multi-model study
Whaley, Cynthia; Mahmood, Rashed; von Salzen, Knut; Winter, Barbara; Eckhardt, Sabine; Arnold, Stephen R.; Beagley, Stephen; Becagli, Silvia; Chien, Rong-You; Christensen, Jesper; Damani, Sujay Manish; Dong, Xinyi; Eleftheriadis, Konstantinos; Evangeliou, Nikolaos; Faluvegi, Gregory; Flanner, Mark G.; Fu, Joshua S.; Gauss, Michael; Giardi, Fabio; Gong, Wanmin; Hjorth, Jens Liengaard; Huang, Lin; Im, Ulas; Kanaya, Yugo; Srinath, Krishnan; Klimont, Zbigniew; Kuhn, Thomas; Langner, Joakim; Law, Kathy S.; Marelle, Louis; Massling, Andreas; Oliviè, Dirk Jan Leo; Onishi, Tatsuo; Oshima, Naga; Peng, Yiran; Plummer, David A.; Pozzoli, Luca; Popovicheva, Olga; Raut, Jean-Christophe; Sand, Maria; Saunders, Laura; Schmale, Julia; Sharma, Sangeeta; Skeie, Ragnhild Bieltvedt; Skov, Henrik; Taketani, Fumikazu; Thomas, Manu Anna; Traversi, Rita; Tsigaridis, Kostas; Tsyro, Svetlana; Turnock, Steven T; Vitale, Vito; Walker, Kaley A.; Wang, Minqi; Watson-Parris, Duncan; Weiss-Gibbons, Tahya (Peer reviewed; Journal article, 2022)While carbon dioxide is the main cause for global warming, modeling short-lived climate forcers (SLCFs) such as methane, ozone, and particles in the Arctic allows us to simulate near-term climate and health impacts for a ...