• 10-year satellite-constrained fluxes of ammonia improve performance of chemistry transport models 

      Evangeliou, Nikolaos; Balkanski, Yves; Eckhardt, Sabine; Cozic, Anne; Van Damme, Martin; Coheur, Pierre-François; Clarisse, Lieven; Shephard, Mark W.; Cady-Pereira, Karen; Hauglustaine, Didier (Peer reviewed; Journal article, 2021)
      In recent years, ammonia emissions have been continuously increasing, being almost 4 times higher than in the 20th century. Although an important species, as its use as a fertilizer sustains human living, ammonia has major ...
    • Aerosol carbonaceous, elemental and ionic composition variability and origin at the Siberian High Arctic, Cape Baranova 

      Manousakas, Manousos; Popovicheva, Olga; Evangeliou, Nikolaos; Diapouli, Evangelia; Sitnikov, Nikolay; Shonija, N.; Eleftheriadis, Konstantinos (Peer reviewed; Journal article, 2020)
      Aerosol particles are major short-lived climate forcers, because of their ability to interact with incoming solar radiation. Therefore, addressing mean levels and sources of Arctic aerosols is of high importance in the ...
    • An aerosol particle containing enriched uranium encountered in the remote upper troposphere 

      Murphy, D. M.; Froyd, K. D.; Apel, E.; Blake, D.; Evangeliou, Nikolaos; Hornbrook, R. S.; Peischl, J.; Ray, E.; Ryerson, T. B.; Thompson, C.; Stohl, Andreas (Journal article; Peer reviewed, 2018)
    • 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; Hansen, Georg Heinrich; Hansson, Hans-Christen; Heintzenberg, Jost; Hermansen, Ove; Heslin-Rees, Dominic; Holmén, Kim; Hudson, Stephen; Kallenborn, Roland; Krejci, Radovan; Krognes, Terje; Larssen, Steinar; Lowry, David; Myhre, Cathrine Lund; Lunder, Chris Rene; Nisbet, Euan; Bohlin-Nizzetto, Pernilla; Park, Ki-Tae; Pedersen, Christina Alsvik; Pfaffhuber, Katrine Aspmo; Röckmann, Thomas; Schmidbauer, Norbert; Solberg, Sverre; Stohl, Andreas; Ström, Johan; Svendby, Tove Marit; Tunved, Peter; Tørnkvist, Kjersti Karlsen; van der Veen, Carina; Vratolis, Stergios; Jun Yoon, Young; Yttri, Karl Espen; Zieger, Paul; Aas, Wenche; Tørseth, Kjetil (Peer reviewed; Journal article, 2022)
      The Zeppelin Observatory (78.90∘ N, 11.88∘ E) is located on Zeppelin Mountain at 472 m a.s.l. on Spitsbergen, the largest island of the Svalbard archipelago. Established in 1989, the observatory is part of Ny-Ålesund ...
    • Atmospheric transport is a major pathway of microplastics to remote regions 

      Evangeliou, Nikolaos; Grythe, Henrik; Klimont, Zbigniew; Heyes, Chris; Eckhardt, Sabine; Lopez-Aparicio, Susana; Stohl, Andreas (Peer reviewed; Journal article, 2020)
      In recent years, marine, freshwater and terrestrial pollution with microplastics has been discussed extensively, whereas atmospheric microplastic transport has been largely overlooked. Here, we present global simulations ...
    • Black Carbon Emission Reduction Due to COVID-19 Lockdown in China 

      Jia, Mengwei; Evangeliou, Nikolaos; Eckhardt, Sabine; Huang, Xin; Gao, Jian; Ding, Aijun; Stohl, Andreas (Peer reviewed; Journal article, 2021)
      During the Lunar New Year Holiday of 2020, China implemented an unprecedented lockdown to fight the COVID-19 outbreak, which strongly affected the anthropogenic emissions. We utilized elemental carbon observations (equivalent ...
    • Black carbon sources constrained by observations in the Russian high Arctic 

      Popovicheva, Olga; Evangeliou, Nikolaos; Eleftheriadis, Konstantinos; Kalogridis, Athina C.; Sitnikov, Nikolay; Eckhardt, Sabine; Stohl, Andreas (Journal article; Peer reviewed, 2017)
    • Changes in black carbon emissions over Europe due to COVID-19 lockdowns 

      Evangeliou, Nikolaos; Platt, Stephen Matthew; Eckhardt, Sabine; Myhre, Cathrine Lund; Laj, Paolo; Alados-Arboledas, Lucas; Backman, John; Brem, Benjamin T.; Fiebig, Markus; Flentje, Harald; Marinoni, Angela; Pandolfi, Marco; Yus-Diez, Jesus; Prats, Natalia; Putaud, Jean-Philippe; Sellegri, Karine; Sorribas, Mar; Eleftheriadis, Konstantinos; Vratolis, Stergios; Wiedensohler, Alfred; Stohl, Andreas (Peer reviewed; Journal article, 2021)
      Following the emergence of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) responsible for COVID-19 in December 2019 in Wuhan (China) and its spread to the rest of the world, the World Health Organization ...
    • Clean air policies are key for successfully mitigating Arctic warming 

      von Salzen, Knut; Whaley, Cynthia; Anenberg, Susan C.; Van Dingenen, Rita; Klimont, Zbigniew; Flanner, Mark G.; Mahmood, Rashed; Arnold, Stephen R.; Beagley, Stephen; Chien, Rong-You; Christensen, Jesper H.; Eckhardt, Sabine; Ekman, Annica M. L.; Evangeliou, Nikolaos; Faluvegi, Greg; Fu, Joshua S.; Gauss, Michael (Peer reviewed; Journal article, 2022)
      A tighter integration of modeling frameworks for climate and air quality is urgently needed to assess the impacts of clean air policies on future Arctic and global climate. We combined a new model emulator and comprehensive ...
    • Comparisons between the distributions of dust and combustion aerosols in MERRA-2, FLEXPART, and CALIPSO and implications for deposition freezing over wintertime Siberia 

      Zamora, Lauren M; Kahn, Ralph A.; Evangeliou, Nikolaos; Zwaaftink, Christine Groot; Huebert, Klaus B (Peer reviewed; Journal article, 2022)
      Aerosol distributions have a potentially large influence on climate-relevant cloud properties but can be difficult to observe over the Arctic given pervasive cloudiness, long polar nights, data paucity over remote regions, ...
    • Composition and sources of carbonaceous aerosol in the European Arctic at Zeppelin Observatory, Svalbard (2017 to 2020) 

      Yttri, Karl Espen; Bäcklund, Are; Conen, Franz; Eckhardt, Sabine; Evangeliou, Nikolaos; Fiebig, Markus; Kasper-Giebl, Anne; Gold, Avram; Gundersen, Hans; Myhre, Cathrine Lund; Platt, Stephen Matthew; Simpson, David; Surratt, Jason D.; Szidat, Sönke; Rauber, Martin; Tørseth, Kjetil; Ytre-Eide, Martin Album; Zhang, Zhenfa; Aas, Wenche (Peer reviewed; Journal article, 2024)
      We analyzed long-term measurements of organic carbon, elemental carbon, and source-specific organic tracers from 2017 to 2020 to constrain carbonaceous aerosol sources in the rapidly changing Arctic. Additionally, we used ...
    • Daily black carbon emissions from fires in northern Eurasia for 2002-2015 

      Hao, Wei Min; Petkov, Alexander; Nordgren, Bryce L.; Corley, Rachel E.; Silverstein, Robin P.; Urbanski, Shawn P.; Evangeliou, Nikolaos; Balkanski, Yves; Kinder, Bradley L. (Journal article; Peer reviewed, 2016)
    • Decreasing trends of ammonia emissions over Europe seen from remote sensing and inverse modelling 

      Tichý, Ondřej; Eckhardt, Sabine; Balkanski, Yves; Hauglustaine, Didier; Evangeliou, Nikolaos (Peer reviewed; Journal article, 2023)
      Ammonia (NH3), a significant precursor of particulate matter, affects not only biodiversity, ecosystems, and soil acidification but also climate and human health. In addition, its concentrations are constantly rising due ...
    • Dose calculations in aircrafts after Fukushima nuclear power plant accident – Preliminary study for aviation operations 

      Vargas, Arturo; Arnold, Delia; Duch, M.-A.; Evangeliou, Nikolaos; Sievers, Klaus (Journal article; Peer reviewed, 2019)
      There is little information to decision support in air traffic management in case of nuclear releases into the atmosphere. In this paper, the dose estimation due to both, external exposure (i.e. cloud immersion, deposition ...
    • Evaluation of observed and modelled aerosol lifetimes using radioactive tracers of opportunity and an ensemble of 19 global models 

      Kristiansen, Nina Iren; Stohl, Andreas; Oliviè, Dirk Jan Leo; Croft, Betty; Søvde, Ole Amund; Klein, Heiko; Christoudias, Theodoros; Kunkel, Daniel; Leadbetter, Susan J.; Lee, Yunha; Zhang, Kai; Tsigaridis, Kostas; Bergman, Tommi; Evangeliou, Nikolaos; Wang, Hailong; Ma, Po-Lun; Easter, Richard C.; Rasch, Philip J.; Liu, Xiaohong; Pitari, Giovanni; Di Genova, Glauco; Zhao, Shuyun; Balkanski, Yves; Bauer, Susanne E.; Faluvegi, Gregory S.; Kokkola, Harri; Martin, Randall V.; Pierce, Jeffrey Robert; Schulz, Michael; Shindell, Drew T.; Tost, Holger; Zhang, Hua (Journal article; Peer reviewed, 2016)
    • Global agricultural ammonia emissions simulated with the ORCHIDEE land surface mode 

      Beaudor, Maureen; Vuichard, Nicolas; Lathière, Juliette; Evangeliou, Nikolaos; Van Damme, Martin; Clarisse, Lieven; Hauglustaine, Didier (Peer reviewed; Journal article, 2023)
      Ammonia (NH3) is an important atmospheric constituent. It plays a role in air quality and climate through the formation of ammonium sulfate and ammonium nitrate particles. It has also an impact on ecosystems through ...
    • Increased contribution of biomass burning to haze events in Shanghai since China’s clean air actions 

      Fang, Wenzheng; Evangeliou, Nikolaos; Eckhardt, Sabine; Xing, Ju; Zhang, Hailong; Xiao, Hang; Zhao, Meixun; Kim, Sang-Woo (Peer reviewed; Journal article, 2023)
      High levels of East Asian black carbon (BC) aerosols affect ecological and environmental sustainability and contribute to climate warming. Nevertheless, the BC sources in China, after implementing clean air actions from ...
    • Inverse modeling of the Chernobyl source term using atmospheric concentration and deposition measurements 

      Evangeliou, Nikolaos; Hamburger, Thomas; Cozic, Anne; Balkanski, Yves; Stohl, Andreas (Journal article; Peer reviewed, 2017)
    • Large Circulation Patterns Strongly Modulate Long-Term Variability of Arctic Black Carbon Levels and Areas of Origin 

      Stathopoulos, Vasileios; Evangeliou, Nikolaos; Stohl, Andreas; Vratolis, Stergios; Matsoukas, Christos; Eleftheriadis, Konstantinos (Peer reviewed; Journal article, 2021)
      Black Carbon (BC) aerosol is a major climate forcer in the Arctic. Here, we present 15 years (2001–2015) of surface observations of the aerosol absorption coefficient babs (corresponding to Equivalent BC), obtained at the ...
    • Microplastics and nanoplastics in the marine-atmosphere environment 

      Allen, Deonie; Allen, Steve; Abbasi, Sajjad; Baker, Alex; Bergmann, Melanie; Brahney, Janice; Butler, Tim; Duce, Robert; Eckhardt, Sabine; Evangeliou, Nikolaos; Jickells, Tim; Kanakidou, Maria; Kershaw, Peter J; Laj, Paolo G.; Levermore, Joseph; Li, Daoji; Liss, Peter; Liu, Kai; Mahowald, Natalie M.; Masque, Pere; Materic, Dusan; Mayes, Andrew G.; McGinnity, Paul; Osvath, Iolanda; Prather, Kimberly A.; Prospero, Joseph M.; Revell, Laura E.; Sander, Sylvia G.; Shim, Won Joon; Slade, Jonathan; Stein, Ariel F.; Wright, Stephanie (Peer reviewed; Journal article, 2022)
      The discovery of atmospheric micro(nano)plastic transport and ocean–atmosphere exchange points to a highly complex marine plastic cycle, with negative implications for human and ecosystem health. Yet, observations are ...