• Aerosol absorption in global models from AeroCom phase III 

      Sand, Maria; Samset, Bjørn Hallvard; Myhre, Gunnar; Gliss, Jonas; Bauer, Susanne E.; Bian, Huisheng; Chin, Mian; Checa-Garcia, Ramiro; Ginoux, Paul; Kipling, Zak; Kirkevåg, Alf; Kokkola, Harri; Le Sager, Philippe; Lund, Marianne Tronstad; Matsui, Hitoshi; Van Noije, Twan; Oliviè, Dirk Jan Leo; Rémy, Samuel; Schulz, Michael; Stier, Philip; Stjern, Camilla Weum; Takemura, Toshihiko; Tsigaridis, Kostas; Tsyro, Svetlana; Watson-Parris, Duncan (Peer reviewed; Journal article, 2021)
      Aerosol-induced absorption of shortwave radiation can modify the climate through local atmospheric heating, which affects lapse rates, precipitation, and cloud formation. Presently, the total amount of aerosol absorption ...
    • 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 ...
    • Black carbon aerosol reductions during COVID-19 confinement quantified by aircraft measurements over Europe 

      Krüger, Ovid O.; Holanda, Bruna A.; Chowdhury, Sourangsu; Pozzer, Andrea; Walter, David; Pöhlker, Christopher; Hernández, Maria Dolores Andrés; Burrows, John P.; Voigt, Christiane; Lelieveld, Jos; Quaas, Johannes; Pöschl, Ulrich; Pöhlker, Mira L. (Peer reviewed; Journal article, 2022)
      The abrupt reduction in human activities during the first lockdown of the COVID-19 pandemic created unprecedented atmospheric conditions. To quantify the changes in lower tropospheric air pollution, we conducted the BLUESKY ...
    • CO2-equivalence metrics for surface albedo change based on the radiative forcing concept: a critical review 

      Bright, Ryan M.; Lund, Marianne Tronstad (Journal article, 2021)
      Management of Earth’s surface albedo is increasingly viewed as an important climate change mitigation strategy both on (Seneviratne et al., 2018) and off (Field et al., 2018; Kravitz et al., 2018) the land. Assessing the ...
    • Competing effects of aerosol reductions and circulation changes for future improvements in Beijing haze 

      Guo, Liang; Wilcox, Laura J.; Bollasina, Massimo; Turnock, Steven T.; Lund, Marianne Tronstad; Zhang, Lixia (Journal article; Peer reviewed, 2021)
      Despite local emission reductions, severe haze events remain a serious issue in Beijing. Previous studies have suggested that both greenhouse gas increases and aerosol decreases are likely to increase the frequency of ...
    • The Emissions Model Intercomparison Project (Emissions-MIP): Quantifying model sensitivity to emission characteristics 

      Ahsan, Hamza; Wang, Hailong; Wu, Jingbo; Wu, Mingxuan; Smith, Steven J.; Bauer, Susanne; Suchyta, Harrison; Oliviè, Dirk Jan Leo; Myhre, Gunnar; Matsui, Hitoshi; Bian, Huisheng; Lamarque, Jean-François; Carslaw, Ken; Horowitz, Larry; Regayre, Leighton; Chin, Mian; Schulz, Michael; Skeie, Ragnhild Bieltvedt; Takemura, Toshihiko; Naik, Vaishali (Peer reviewed; Journal article, 2023)
      Anthropogenic emissions of aerosols and precursor compounds are known to significantly affect the energy balance of the Earth–atmosphere system, alter the formation of clouds and precipitation, and have a substantial impact ...
    • How well are aerosol-cloud interactions represented in climate models? - Part 1: Understanding the sulfate aerosol production from the 2014-15 Holuhraun eruption 

      Jordan, George; Malavelle, Florent; Chen, Ying; Peace, Amy; Duncan, Eliza; Partridge, Daniel G.; Kim, Paul; Watson-Parris, Duncan; Takemura, Toshihiko; Neubauer, David; Myhre, Gunnar; Skeie, Ragnhild Bieltvedt; Laakso, Anton; Haywood, James (Peer reviewed; Journal article, 2024)
      For over 6 months, the 2014–2015 effusive eruption at Holuhraun, Iceland, injected considerable amounts of sulfur dioxide (SO2) into the lower troposphere with a daily rate of up to one-third of the global emission rate, ...
    • Implications of differences between recent anthropogenic aerosol emission inventories for diagnosed AOD and radiative forcing from 1990 to 2019 

      Lund, Marianne Tronstad; Myhre, Gunnar; Skeie, Ragnhild Bieltvedt; Samset, Bjørn Hallvard; Klimont, Zbigniew (Peer reviewed; Journal article, 2023)
      This study focuses on implications of differences between recent global emissions inventories for simulated trends in anthropogenic aerosol abundances and radiative forcing (RF) over the 1990–2019 period. We use the ECLIPSE ...
    • Influence of weather situation on non-CO2 aviation climate effects: The REACT4C climate change functions 

      Frömming, Christine; Grewe, Volker; Brinkop, Sabine; Jöckel, Patrick; Søvde, Ole Amund; Rosanka, Simon; Van Manen, Jesper; Matthes, Sigrun (Journal article; Peer reviewed, 2021)
      Emissions of aviation include CO2, H2O, NOx, sulfur oxides, and soot. Many studies have investigated the annual mean climate impact of aviation emissions. While CO2 has a long atmospheric residence time and is almost ...
    • Mapping the dependence of black carbon radiative forcing on emission region and season 

      Räisänen, Petri; Merikanto, Joonas; Makkonen, Risto; Savolahti, Mikko; Kirkevåg, Alf; Sand, Maria; Seland, Øyvind; Partanen, Antti-Ilari (Peer reviewed; Journal article, 2022)
      For short-lived climate forcers such as black carbon (BC), the atmospheric concentrations, radiative forcing (RF), and, ultimately, the subsequent effects on climate, depend on the location and timing of the emissions. ...
    • 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 (Journal article; Peer reviewed, 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 ...
    • Numerical simulation and evaluation of global ultrafine particle concentrations at the Earth's surface 

      Kohl, Matthias; Lelieveld, Jos; Chowdhury, Sourangsu; Ehrhart, Sebastian; Sharma, Disha; Cheng, Yafang; Tripathi, Sachchida Nand; Sebastian, Mathew; Pandithurai, Govindan; Wang, Hongli; Pozzer, Andrea (Peer reviewed; Journal article, 2023)
      A new global dataset of annually averaged ultrafine particle (UFP) concentrations at the Earth's surface for the years 2015–2017 has been developed through numerical simulations using the ECHAM/MESSy Atmospheric Chemistry ...
    • Observationally constrained analysis of sulfur cycle in the marine atmosphere with NASA ATom measurements and AeroCom model simulations 

      Bian, Huisheng; Chin, Mian; Colarco, Peter R.; Apel, Eric C.; Blake, Donald R.; Froyd, Karl; Hornbrook, Rebecca S.; Jimenez, Jose; Jost, Pedro Campuzano; Lawler, Michael; Liu, Mingxu; Lund, Marianne Tronstad; Matsui, Hitoshi; Nault, Benjamin A.; Penner, Joyce E.; Rollins, Andrew W.; Schill, Gregory; Skeie, Ragnhild Bieltvedt; Wang, Hailong; Xu, Lu; Zhang, Kai; Zhu, Jialei (Peer reviewed; Journal article, 2024)
      The atmospheric sulfur cycle plays a key role in air quality, climate, and ecosystems, such as pollution, radiative forcing, new particle formation, and acid rain. In this study, we compare the spatially and temporally ...
    • Responses of Arctic black carbon and surface temperature to multi-region emission reductions: A Hemispheric Transport of Air Pollution Phase 2 (HTAP2) ensemble modeling study 

      Nan-nan, Zhao; Dong, Xinyi; Huang, Kan; Fu, Joshua S.; Lund, Marianne Tronstad; Sudo, Kengo; Henze, Daven K.; Kucsera, Tom; Lam, Yun Fat; Chin, Mian; Tilmes, Simone (Journal article; Peer reviewed, 2021)
      Black carbon (BC) emissions play an important role in regional climate change in the Arctic. It is necessary to pay attention to the impact of long-range transport from regions outside the Arctic as BC emissions from local ...
    • Satellite-based evaluation of AeroCom model bias in biomass burning regions 

      Zhong, Qirui; Schutgens, Nick; Van Der Werf, Guido; Van Noije, Twan; Tsigaridis, Kostas; Bauer, Susanne E.; Mielonen, Tero; Kirkevåg, Alf; Seland, Øyvind; Kokkola, Harri; Checa-Garcia, Ramiro; Neubauer, David; Kipling, Zak; Matsui, Hitoshi; Ginoux, Paul; Takemura, Toshihiko; Le Sager, Philippe; Rémy, Samuel; Bian, Huisheng; Chin, Mian; Zhang, Kai; Zhu, Jialei; Tsyro, Svetlana; Curci, Gabriele; Protonotariou, Anna; Johnson, Ben; Penner, Joyce E.; Bellouin, Nicolas; Skeie, Ragnhild Bieltvedt; Myhre, Gunnar (Peer reviewed; Journal article, 2022)
      Global models are widely used to simulate biomass burning aerosol (BBA). Exhaustive evaluations on model representation of aerosol distributions and properties are fundamental to assess health and climate impacts of BBA. ...
    • Technical note: Emulation of a large-eddy simulator for stratocumulus clouds in a general circulation model 

      Nordling, Kalle; Keskinen, Jukka-Pekka; Romakkaniemi, Sami; Kokkola, Harri; Räisänen, Petri; Lipponen, Antti; Partanen, Antti-Ilari; Ahola, Jaakko; Tonttila, Juha; Alper, Muzaffer Ege; Korhonen, Hannele; Raatikainen, Tomi (Peer reviewed; Journal article, 2024)
      Here we present for the first time a proof of concept for an emulation-based method that uses a large-eddy simulations (LESs) to present sub-grid cloud processes in a general circulation model (GCM). We focus on two key ...