Blar i NILU Brage på tidsskrift "Atmospheric Chemistry and Physics (ACP)"

Viser treff 1-20 av 38

    • Aerosol and dynamical contributions to cloud droplet formation in Arctic low-level clouds 

      Motos, Ghislain; Freitas, Gabriel; Georgakaki, Paraskevi; Wieder, Jörg; Li, Guangyu; Aas, Wenche; Lunder, Chris Rene; Krejci, Radovan; Pasquier, Julie Thérèse; Henneberger, Jan; David, Robert Oscar; Ritter, Christoph; Mohr, Claudia; Zieger, Paul; Nenes, Athanasios (Peer reviewed; Journal article, 2023)
      The Arctic is one of the most rapidly warming regions of the globe. Low-level clouds and fog modify the energy transfer from and to space and play a key role in the observed strong Arctic surface warming, a phenomenon ...

    • 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 ...

    • Aircraft-based mass balance estimate of methane emissions from offshore gas facilities in the southern North Sea 

      Pühl, Magdalena; Roiger, Anke; Fiehn, Alina; Gorchov Negron, Alan M.; Kort, Eric A.; Schwietzke, Stefan; Pisso, Ignacio; Foulds, Amy; Lee, James; France, James L.; Jones, Anna E.; Lowry, Dave; Fisher, Rebecca E.; Huang, Langwen; Shaw, Jacob; Bateson, Prudence; Andrews, Stephen; Young, Stuart; Dominutti, Pamela; Lachlan-Cope, Tom; Weiss, Alexandra; Allen, Grant (Peer reviewed; Journal article, 2024)
      Atmospheric methane (CH4) concentrations have more than doubled since the beginning of the industrial age, making CH4 the second most important anthropogenic greenhouse gas after carbon dioxide (CO2). The oil and gas sector ...

    • Ammonia emission estimates using CrIS satellite observations over Europe 

      Ding, Jieying; van der A, Ronald; Eskes, Henk; Dammers, Enrico; Shephard, Mark; Kruit, Roy Wichink; Guevara, Marc; Tarrasón, Leonor (Peer reviewed; Journal article, 2024)
      Over the past century, ammonia (NH3) emissions have increased with the growth of livestock and fertilizer usage. The abundant NH3 emissions lead to secondary fine particulate matter (PM2.5) pollution, climate change, and ...

    • Arctic tropospheric ozone: assessment of current knowledge and model performance 

      Whaley, Cynthia; Law, Kathy S.; Hjorth, Jens Liengaard; Skov, Henrik; Arnold, Stephen R.; Langner, Joakim; Pernov, Jakob Boyd; Bergeron, Garance; Bourgeois, Ilann; Christensen, Jesper H.; Chien, Rong-You; Deushi, Makoto; Dong, Xinyi; Effertz, Peter; Faluvegi, Gregory; Flanner, Mark G.; Fu, Joshua S.; Gauss, Michael; Huey, Greg L.; Im, Ulas; Kivi, Rigel; Marelle, Louis; Onishi, Tatsuo; Oshima, Naga; Petropavlovskikh, Irina; Peischl, Jeff; Plummer, David A.; Pozzoli, Luca; Raut, Jean-Christophe; Ryerson, Tom; Skeie, Ragnhild Bieltvedt; Solberg, Sverre; Thomas, Manu Anna; Thompson, Chelsea R.; Tsigaridis, Kostas; Tsyro, Svetlana; Turnock, Steven T.; von Salzen, Knut; Tarasick, David (Peer reviewed; Journal article, 2023)
      As the third most important greenhouse gas (GHG) after carbon dioxide (CO2) and methane (CH4), tropospheric ozone (O3) is also an air pollutant causing damage to human health and ecosystems. This study brings together ...

    • 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 ...

    • The atmospheric fate of 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH): spatial patterns, seasonal variability, and deposition to Canadian coastal regions 

      Oh, Jenny; Shunthirasingham, Chubashini; Lei, Ying Duan; Zhan, Faqiang; Li, Yuening; Dalpé Castilloux, Abigaëlle; Ben Chaaben, Amina; Lu, Zhe; Lee, Kelsey; Gobas, Frank A. P. C.; Eckhardt, Sabine; Alexandrou, Nick; Hung, Hayley; Wania, Frank (Peer reviewed; Journal article, 2023)
      Brominated flame retardants (BFRs) that are gradually being phased out are being replaced by emerging BFRs. Here, we report the concentration of the α- and β-isomers of 1,2-dibromo-4-(1,2-dibromoethyl)cyclohexane (TBECH; ...

    • Cloud-scale modelling of the impact of deep convection on the fate of oceanic bromoform in the troposphere: a case study over the west coast of Borneo 

      Hamer, Paul David; Marécal, Virginie; Hossaini, Ryan; Pirre, Michel; Krysztofiak, Gisele; Ziska, Franziska; Engel, Andreas; Sala, Stephan; Keber, Timo; Bönisch, Harald; Atlas, Elliot; Krüger, Kirstin; Chipperfield, Martyn P. (Peer reviewed; Journal article, 2021)
      This paper presents a modelling study on the fate of CHBr3 and its product gases in the troposphere within the context of tropical deep convection. A cloud-scale case study was conducted along the west coast of Borneo, ...

    • Comparison of particle number size distribution trends in ground measurements and climate models 

      Leinonen, Ville; Kokkola, Harri; Yli-Juuti, Taina; Mielonen, Tero; Kühn, Thomas; Nieminen, Tuomo; Heikkinen, Simo; Miinalainen, Tuuli; Bergman, Tommi; Carslaw, Ken; Decesari, Stefano; Fiebig, Markus; Hussein, Tareq; Kivekäs, Niku; Krejci, Radovan; Kulmala, Markku; Leskinen, Ari; Massling, Andreas; Mihalopoulos, Nikos; Mulcahy, Jane P.; Noe, Steffen M.; Van Noije, Twan; O'connor, Fiona M.; O'dowd, Colin; Oliviè, Dirk Jan Leo; Pernov, Jakob B.; Petäjä, Tuukka; Seland, Øyvind; Schulz, Michael; Scott, Catherine E.; Skov, Henrik; Swietlicki, Erik; Tuch, Thomas; Wiedensohler, Alfred; Virtanen, Annele; Mikkonen, Santtu (Peer reviewed; Journal article, 2022)
      Despite a large number of studies, out of all drivers of radiative forcing, the effect of aerosols has the largest uncertainty in global climate model radiative forcing estimates. There have been studies of aerosol optical ...

    • 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 ...

    • Contribution of fluorescent primary biological aerosol particles to low-level Arctic cloud residuals 

      Pereira Freitas, Gabriel; Kopec, Ben; Adachi, Kouji; Krejci, Radovan; Heslin-Rees, Dominic; Yttri, Karl Espen; Hubbard, Alun Lloyd; Welker, Jeffrey M.; Zieger, Paul (Peer reviewed; Journal article, 2024)
      Mixed-phase clouds (MPCs) are key players in the Arctic climate system due to their role in modulating solar and terrestrial radiation. Such radiative interactions rely, among other factors, on the ice content of MPCs, ...

    • 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 ...

    • Estimating methane emissions in the Arctic nations using surface observations from 2008 to 2019 

      Wittig, Sophie; Berchet, Antoine; Pison, Isabelle; Saunois, Marielle; Thanwerdas, Joel; Martinez, Adrien; Paris, Jean-Daniel; Machida, Toshinobu; Sasakawa, Motoki; Worthy, Doug E.J.; Lan, Xin; Thompson, Rona Louise; Sollum, Espen; Arshinov, Mikhail (Peer reviewed; Journal article, 2023)
      The Arctic is a critical region in terms of global warming. Environmental changes are already progressing steadily in high northern latitudes, whereby, among other effects, a high potential for enhanced methane (CH4) ...

    • Estimation of the atmospheric hydroxyl radical oxidative capacity using multiple hydrofluorocarbons (HFCs) 

      Thompson, Rona Louise; Montzka, Stephen A.; Vollmer, Martin K.; Arduini, Jgor; Crotwell, Molly; Krummel, Paul B.; Lunder, Chris Rene; Mühle, Jens; O'doherty, Simon; Prinn, Ronald G.; Reimann, Stefan; Vimont, Isaac; Wang, Hsiang; Weiss, Ray F.; Young, Dickon (Peer reviewed; Journal article, 2024)
      The hydroxyl radical (OH) largely determines the atmosphere's oxidative capacity and, thus, the lifetimes of numerous trace gases, including methane (CH4). Hitherto, observation-based approaches for estimating the atmospheric ...

    • Eurodelta multi-model simulated and observed particulate matter trends in Europe in the period of 1990–2010 

      Tsyro, Svetlana; Aas, Wenche; Colette, Augustin; Andersson, Camilla; Bessagnet, Bertrand; Ciarelli, Giancarlo; Couvidat, Florian; Cuvelier, Kees; Manders, Astrid; Mar, Kathleen; Mircea, Mihaela; Otero, Noelia; Pay, Maria-Teresa; Raffort, Valentin; Roustan, Yelva; Theobald, Mark, R.; Vivanco, Marta García; Fagerli, Hilde; Wind, Peter; Briganti, Gino; Cappelletti, Andrea; D'Isidoro, Massimo; Adani, Mario (Peer reviewed; Journal article, 2022)
      The Eurodelta-Trends (EDT) multi-model experiment, aimed at assessing the efficiency of emission mitigation measures in improving air quality in Europe during 1990–2010, was designed to answer a series of questions regarding ...

    • Evaluation of modelled versus observed non-methane volatile organic compounds at European Monitoring and Evaluation Programme sites in Europe 

      Ge, Yao; Solberg, Sverre; Heal, Mathew R; Reimann, Stefan; van Caspel, Willem; Hellack, Bryan; Salameh, Therese; Simpson, David (Peer reviewed; Journal article, 2024)
      Atmospheric volatile organic compounds (VOCs) constitute a wide range of species, acting as precursors to ozone and aerosol formation. Atmospheric chemistry and transport models (CTMs) are crucial to understanding the ...

    • Evaluation of modelled versus observed non-methane volatile organic compounds at European Monitoring and Evaluation Programme sites in Europe 

      Ge, Yao; Solberg, Sverre; Heal, Mathew R.; Reimann, Stefan; van Caspel, Willem; Hellack, Bryan; Salameh, Therese; Simpson, David (Peer reviewed; Journal article, 2024)
      Atmospheric volatile organic compounds (VOCs) constitute a wide range of species, acting as precursors to ozone and aerosol formation. Atmospheric chemistry and transport models (CTMs) are crucial to understanding the ...

    • A global re-analysis of regionally resolved emissions and atmospheric mole fractions of SF6 for the period 2005–2021 

      Vojta, Martin; Plach, Andreas; Annadate, Saurabh; Park, Sunyoung; Lee, Gawon; Purohit, Pallav; Lindl, Florian; Lan, Xin; Mühle, Jens; Thompson, Rona Louise; Stohl, Andreas (Peer reviewed; Journal article, 2024)
      We determine the global emission distribution of the potent greenhouse gas sulfur hexafluoride (SF6) for the period 2005–2021 using inverse modelling. The inversion is based on 50 d backward simulations with the Lagrangian ...

    • Impact of 2020 COVID-19 lockdowns on particulate air pollution across Europe 

      Putaud, Jean-Philippe; Pisoni, Enrico; Mangold, Alexander; Hueglin, Christoph; Sciare, Jean; Pikridas, Michael; Savvides, Chrysantos; Ondráček, Jakub; Mbengue, Saliou; Wiedensohler, Alfred; Weinhold, Kay; Merkel, Maik; Poulain, Laurent; van Pinxteren, Dominik; Herrmann, Hartmut; Massling, Andreas; Nordstroem, Claus; Alastuey, Andres; Reche, Cristina; Perez, Noemi; Castillo, Sonia; Sorribas, Mar; Adame, Jose A.; Petäjä, Tuukka; Lehtipalo, Katrianne; Niemi, Jarkko; Riffault, Véronique; De Brito, Joel F.; Colette, Augustin; Favez, Olivier; Petit, Jean-Eudes; Gros, Valérie; Gini, Maria; Vratolis, Stergios; Eleftheriadis, Konstantinos; Diapouli, Evangelia; van der Gon, Hugo Denier; Yttri, Karl Espen; Aas, Wenche (Peer reviewed; Journal article, 2023)
      To fight against the first wave of coronavirus disease 2019 (COVID-19) in 2020, lockdown measures were implemented in most European countries. These lockdowns had well-documented effects on human mobility. We assessed the ...