Now showing items 21-31 of 31

    • A regional modelling study of halogen chemistry within a volcanic plume of Mt Etna's Christmas 2018 eruption 

      Narivelo, Herizo; Hamer, Paul David; Marécal, Virginie; Surl, Luke; Roberts, Tjarda; Pelletier, Sophie; Josse, Béatrice; Guth, Jonathan; Bacles, Mickaël; Warnach, Simon; Wagner, Thomas; Corradini, Stefano; Salerno, Giuseppe; Guerrieri, Lorenzo (Peer reviewed; Journal article, 2023)
      Volcanoes are known to be important emitters of atmospheric gases and aerosols, which for certain volcanoes can include halogen gases and in particular HBr. HBr emitted in this way can undergo rapid atmospheric oxidation ...
    • A rise in HFC-23 emissions from eastern Asia since 2015 

      Park, Hyeri; Kim, Jooil; Choi, Haklim; Geum, Sohyeon; Kim, Yeaseul; Thompson, Rona Louise; Mühle, Jens; Salameh, Peter K.; Harth, Christina M.; Stanley, Kieran M.; O'Doherty, Simon; Fraser, Paul J.; Simmonds, Peter G.; Krummel, Paul B.; Weiss, Ray F.; Prinn, Ronald G.; Park, Sunyoung (Peer reviewed; Journal article, 2023)
      Trifluoromethane (CHF3, HFC-23), one of the most potent greenhouse gases among hydrofluorocarbons (HFCs), is mainly emitted to the atmosphere as a by-product in the production of the ozone-depleting legacy refrigerant and ...
    • A roadmap to estimating agricultural ammonia volatilization over Europe using satellite observations and simulation data 

      Abeed, Rimal; Viatte, Camille; Porter, William C.; Evangeliou, Nikolaos; Clerbaux, Cathy; Clarisse, Lieven; Van Damme, Martin; Coheur, Pierre-François; Safieddine, Sarah (Peer reviewed; Journal article, 2023)
      Ammonia (NH3) is one of the most important gases emitted from agricultural practices. It affects air quality and the overall climate and is in turn influenced by long-term climate trends as well as by short-term fluctuations ...
    • Robust evidence for reversal of the trend in aerosol effective climate forcing 

      Quaas, Johannes; Jia, Hailing; Smith, Chris; Albright, Anna Lea; Aas, Wenche; Bellouin, Nicolas; Boucher, Olivier; Doutriaux-Boucher, Marie; Forster, Piers M.; Grosvenor, Daniel; Jenkins, Stuart; Klimont, Zbigniew; Loeb, Norman G.; Ma, Xiaoyan; Naik, Vaishali; Paulot, Fabien; Stier, Philip; Wild, Martin; Myhre, Gunnar; Schulz, Michael (Peer reviewed; Journal article, 2022)
      Anthropogenic aerosols exert a cooling influence that offsets part of the greenhouse gas warming. Due to their short tropospheric lifetime of only several days, the aerosol forcing responds quickly to emissions. Here, we ...
    • Seasonality of the particle number concentration and size distribution: a global analysis retrieved from the network of Global Atmosphere Watch (GAW) near-surface observatories 

      Rose, Clemence; Coen, Martine Collaud; Andrews, Elisabeth; Lin, Yong; Bossert, Isaline; Myhre, Cathrine Lund; Tuch, Thomas; Wiedensohler, Alfred; Fiebig, Markus; Aalto, Pasi; Alastuey, Andrés; Alonso-Blanco, Elisabeth; Andrade, Marcos; Artiñano, Begoña; Arsov, Todor; Baltensperger, Urs; Bastian, Susanne; Bath, Olaf; Beukes, Johan Paul; Brem, Benjamin T.; Bukowiecki, Nicolas; Casquero-Vera, Juan Andres; Conil, Sébastien; Eleftheriadis, Konstantinos; Favez, Olivier; Flentje, Harald; Gini, Maria I.; Gómez-Moreno, Francisco Javier; Gysel-Beer, Martin; Hallar, Anna Gannet; Kalapov, Ivo; Kalivitis, Nikos; Kasper-Giebl, Anne; Keywood, Melita; Kim, Jeong Eun; Kim, Sang-Woo; Kristensson, Adam; Kulmala, Markku; Lihavainen, Heikki; Lin, Neng-Huei; Lyamani, Hassan; Marinoni, Angela; Dos Santos, Sebastiao Martins; Mayol-Bracero, Olga; Meinhardt, Frank; Merkel, Maik; Metzger, Jean-Marc; Mihalopoulos, Nikolaos; Ondráček, Jakub; Pandolfi, Marco; Pérez, Noemi; Petäjä, Tuukka; Petit, Jean-Eudes; Picard, David; Pichon, Jean-Marc; Pont, Veronique; Putaud, Jean-Philippe; Reisen, Fabienne; Sellegri, Karine; Sharma, Sangeeta; Schauer, Gerhard; Sheridan, Patrick; Sherman, James Patrick; Schwerin, Andreas; Sohmer, Ralf; Sorribas, Mar; Sun, Junying; Tulet, Pierre; Vakkari, Ville; van Zyl, Pieter Gideon; Velarde, Fernando; Villani, Paolo; Vratolis, Stergios; Wagner, Zdenek; Wang, Sheng-Hsiang; Weinhold, Kay; Weller, Rolf; Yela, Margarita; Ždímal, Vladimir; Laj, Paolo G. (Peer reviewed; Journal article, 2021)
      Aerosol particles are a complex component of the atmospheric system which influence climate directly by interacting with solar radiation, and indirectly by contributing to cloud formation. The variety of their sources, as ...
    • Siberian Arctic black carbon: gas flaring and wildfire impact 

      Popovicheva, Olga; Evangeliou, Nikolaos; Kobelev, Vasily O.; Chichaeva, M. A.; Eleftheriadis, Konstantinos; Gregorič, Asta; Kasimov, Nikolay (Peer reviewed; Journal article, 2022)
      As explained in the latest Arctic Monitoring and Assessment Programme (AMAP) report released in early 2021, the Arctic has warmed 3 times more quickly than the planet as a whole, as well as faster than previously thought. ...
    • Springtime nitrogen oxides and tropospheric ozone in Svalbard: results from the measurement station network 

      Dekhtyareva, Alena; Hermanson, Mark H.; NIkulina, Anna; Hermansen, Ove; Svendby, Tove Marit; Holmén, Kim; Graversen, Rune Grand (Peer reviewed; Journal article, 2022)
      Svalbard is a remote and scarcely populated Arctic archipelago and is considered to be mostly influenced by long-range-transported air pollution. However, there are also local emission sources such as coal and diesel power ...
    • Total ozone trends at three northern high-latitude stations 

      Bernet, Leonie; Svendby, Tove Marit; Hansen, Georg Heinrich; Orsolini, Yvan; Dahlback, Arne; Goutail, Florence; Pazmino, Andrea; Petkov, Boyan; Kylling, Arve (Peer reviewed; Journal article, 2023)
      After the decrease of ozone-depleting substances (ODSs) as a consequence of the Montreal Protocol, it is still challenging to detect a recovery in the total column amount of ozone (total ozone) at northern high latitudes. ...
    • Trends in polar ozone loss since 1989: potential sign of recovery in the Arctic ozone column 

      Pazmiño, Andrea; Goutail, Florence; Godin-Beekmann, Sophie; Hauchecorne, Alain; Pommereau, Jean-Pierre; Chipperfield, Martyn P.; Feng, Wuhu; Lefèvre, Franck; Lecouffe, Audrey; Van Roozendael, Michel; Jepsen, Nis; Hansen, Georg H.; Kivi, Rigel; Strong, Kimberly; Walker, Kaley A. (Peer reviewed; Journal article, 2023)
      Ozone depletion over the polar regions is monitored each year by satellite- and ground-based instruments. In this study, the vortex-averaged ozone loss over the last 3 decades is evaluated for both polar regions using the ...
    • What caused a record high PM10 episode in northern Europe in October 2020? 

      Zwaaftink, Christine Groot; Aas, Wenche; Eckhardt, Sabine; Evangeliou, Nikolaos; Hamer, Paul David; Johnsrud, Mona; Kylling, Arve; Platt, Stephen Matthew; Stebel, Kerstin; Uggerud, Hilde Thelle; Yttri, Karl Espen (Peer reviewed; Journal article, 2022)
      In early October 2020, northern Europe experienced an episode with poor air quality due to high concentrations of particulate matter (PM). At several sites in Norway, recorded weekly values exceeded historical maximum PM10 ...
    • Why is the city's responsibility for its air pollution often underestimated? A focus on PM2.5 

      Thunis, Philippe; Clappier, Alain; de Meij, Alexander; Pisoni, Enrico; Bessagnet, Bertrand; Tarrasón, Leonor (Peer reviewed; Journal article, 2021)
      While the burden caused by air pollution in urban areas is well documented, the origin of this pollution and therefore the responsibility of the urban areas in generating this pollution are still a subject of scientific ...