Blar i CICERO Research Archive på forfatter "Takemura, Toshihiko"

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    • 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 ...

    • Aerosols at the poles: an AeroCom Phase II multi-model evaluation 

      Sand, Maria; Samset, Bjørn Hallvard; Balkanski, Yves; Bauer, Susanne; Bellouin, Nicolas; Berntsen, Terje Koren; Bian, Huisheng; Chin, Mian; Diehl, Thomas; Easter, Richard; Ghan, Steve J.; Iversen, Trond; Kirkevåg, Alf; Lamarque, Jean-Francois; Lin, Guangxing; Liu, Xiaohong; Luo, Gan; Myhre, Gunnar; Van Noije, Twan P.C.; Penner, Joyce E.; Schulz, Michael; Seland, Øyvind; Skeie, Ragnhild Bieltvedt; Stier, Philip; Takemura, Toshihiko; Tsigaridis, Kostas; Yu, Fangqun; Zhang, Kai; Zhang, Hua (Peer reviewed; Journal article, 2017)

    • Anthropogenic sulfate aerosol pollution in South and East Asia induces increased summer precipitation over arid Central Asia 

      Xie, Xiaoning; Myhre, Gunnar; Shindell, Drew; Faluvegi, Gregory; Takemura, Toshihiko; Voulgarakis, Apostolos; Shi, Zhengguo; Li, Xinzhou; Xie, Xiaoxun; Liu, Heng; Liu, Xiaodong; Liu, Yangang (Peer reviewed; Journal article, 2022)
      Precipitation has increased across the arid Central Asia region over recent decades. However, the underlying mechanisms of this trend are poorly understood. Here, we analyze multi-model simulations from the Precipitation ...

    • Climate-driven chemistry and aerosol feedbacks in CMIP6 Earth system models 

      Thornhill, Gillian; Collins, William J.; Oliviè, Dirk Jan Leo; Skeie, Ragnhild Bieltvedt; Archibald, Alexander T.; Bauer, Susanne E.; Checa-Garcia, Ramiro; Fiedler, Stephanie; Folberth, Gerd; Gjermundsen, Ada; Horowitz, Larry; Lamarque, Jean-Francois; Michou, Martine; Mulcahy, Jane; Nabat, Pierre; Naik, Vaishali; M. O'Connor, Fiona; Paulot, Fabien; Schulz, Michael; Scott, Catherine E.; Séférian, Roland; Smith, Christopher J.; Takemura, Toshihiko; Tilmes, Simone; Tsigaridis, Kostas; Weber, James (Journal article; Peer reviewed, 2021)
      Feedbacks play a fundamental role in determining the magnitude of the response of the climate system to external forcing, such as from anthropogenic emissions. The latest generation of Earth system models includes aerosol ...

    • Cloudy-sky contributions to the direct aerosol effect 

      Myhre, Gunnar; Samset, Bjørn Hallvard; Mohr, Christian Wilhelm; Alterskjær, Kari; Balkanski, Yves; Bellouin, Nicolas; Chin, Mian; Haywood, James; Hodnebrog, Øivind; Kinne, Stefan; Lin, Guangxing; Lund, Marianne Tronstad; Penner, Joyce E.; Schulz, Michael; Schutgens, Nick; Skeie, Ragnhild Bieltvedt; Stier, Philip; Takemura, Toshihiko; Zhang, Kai (Journal article; Peer reviewed, 2020)
      The radiative forcing of the aerosol–radiation interaction can be decomposed into clear-sky and cloudy-sky portions. Two sets of multi-model simulations within Aerosol Comparisons between Observations and Models (AeroCom), ...

    • Distinct responses of Asian summer monsoon to black carbon aerosols and greenhouse gases 

      Xie, Xiaoning; Myhre, Gunnar; Liu, Xiaodong; Li, Xinzhou; Shi, Zhengguo; Wang, Hongli; Kirkevåg, Alf; Lamarque, Jean-Francois; Shindell, Drew; Takemura, Toshihiko; Liu, Yangang (Journal article; Peer reviewed, 2020)
      Black carbon (BC) aerosols emitted from natural and anthropogenic sources induce positive radiative forcing and global warming, which in turn significantly affect the Asian summer monsoon (ASM). However, many aspects of ...

    • Distinct surface response to black carbon aerosols 

      Tang, Tao; Shindell, Drew; Zhang, Yuqiang; Voulgarakis, Apostolos; Lamarque, Jean-Francois; Myhre, Gunnar; Faluvegi, Greg; Samset, Bjørn Hallvard; Andrews, Timothy; Oliviè, Dirk Jan Leo; Takemura, Toshihiko; Lee, Xuhui (Journal article; Peer reviewed, 2021)
      For the radiative impact of individual climate forcings, most previous studies focused on the global mean values at the top of the atmosphere (TOA), and less attention has been paid to surface processes, especially for ...

    • Dynamical response of Mediterranean precipitation to greenhouse gases and aerosols 

      Tang, Tao; Shindell, Drew; Samset, Bjørn Hallvard; Boucher, Olivier; Forster, Piers M.; Hodnebrog, Øivind; Myhre, Gunnar; Sillmann, Jana; Voulgarakis, Apostolos; Andrews, Timothy; Faluvegi, Gregory S.; Fläschner, Dagmar; Iversen, Trond; Kasoar, Matthew; Kharin, Viatcheslav; Kirkevåg, Alf; Lamarque, Jean-Francois; Oliviè, Dirk Jan Leo; Richardson, Thomas; Stjern, Camilla Weum; Takemura, Toshihiko (Peer reviewed; Journal article, 2018)

    • The effect of rapid adjustments to halocarbons and N2O on radiative forcing 

      Hodnebrog, Øivind; Myhre, Gunnar; Kramer, Ryan J.; Shine, Keith P.; Andrews, Timothy; Faluvegi, Greg; Kasoar, Matthew; Kirkevåg, Alf; Lamarque, Jean-Francois; Mülmenstädt, Johannes; Oliviè, Dirk Jan Leo; Samset, Bjørn Hallvard; Shindell, Drew; Smith, Christopher J.; Takemura, Toshihiko; Voulgarakis, Apostolos (Journal article; Peer reviewed, 2020)
      Rapid adjustments occur after initial perturbation of an external climate driver (e.g., CO2) and involve changes in, e.g. atmospheric temperature, water vapour and clouds, independent of sea surface temperature changes. ...

    • 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 ...

    • Global and regional radiative forcing from 20 % reductions in BC, OC and SO4 - An HTAP2 multi-model study 

      Stjern, Camilla Weum; Samset, Bjørn Hallvard; Myhre, Gunnar; Bian, Huisheng; Chin, Mian; Davila, Yanko; Dentener, Frank; Emmons, Louisa; Flemming, Johannes; Haslerud, Amund Søvde; Henze, Daven; Jonson, Jan Eiof; Kucsera, Tom; Lund, Marianne Tronstad; Schulz, Michael; Sudo, Kengo; Takemura, Toshihiko; Tilmes, Simone (Peer reviewed; Journal article, 2016)
      In the Hemispheric Transport of Air Pollution Phase 2 (HTAP2) exercise, a range of global atmospheric general circulation and chemical transport models performed coordinated perturbation experiments with 20 % reductions ...

    • Global and regional trends of atmospheric sulfur 

      Aas, Wenche; Mortier, Augustin; Bowersox, Van C.; Cherian, Ribu; Faluvegi, Greg; Fagerli, Hilde; Hand, Jenny; Klimont, Zbigniew; Galy-Lacaux, Corinne; Lehmann, Christopher M. B.; Myhre, Cathrine Lund; Myhre, Gunnar; Oliviè, Dirk Jan Leo; Sato, Keiichi; Quaas, Johannes; Rao, P.S.P.; Schulz, Michael; Shindell, Drew; Skeie, Ragnhild Bieltvedt; Stein, Ariel; Takemura, Toshihiko; Tsyro, Svetlana; Vet, Robert; Xu, Xiaobin (Peer reviewed; Journal article, 2019)
      The profound changes in global SO2 emissions over the last decades have affected atmospheric composition on a regional and global scale with large impact on air quality, atmospheric deposition and the radiative forcing of ...

    • Global premature mortality due to anthropogenic outdoor air pollution and the contribution of past climate change 

      Silva, Raquel A.; West, J. Jason; Zhang, Yuqiang; Anenberg, Susan C.; Lamarque, Jean-François; Shindell, Drew T.; Collins, William J.; Dalsøren, Stig Bjørløw; Faluvegi, Greg; Folberth, Gerd; Horowitz, Larry W.; Nagashima, Tatasuya; Naik, Vaishali; Rumbold, Steven; Skeie, Ragnhild Bieltvedt; Sudo, Kengo; Takemura, Toshihiko; Bergmann, D.; Cameron-Smith, Philip; Cionni, Irene; Doherty, Ruth M.; Eyring, Veronika; Josse, Béatrice; MacKenzie, Ian A.; Plummer, David; Righi, Mattia; Stevenson, David S.; Strode, Sarah; Szopa, Sophie; Zeng, Guang (Journal article; Peer reviewed, 2013)

    • Historical total ozone radiative forcing derived from CMIP6 simulations 

      Skeie, Ragnhild Bieltvedt; Myhre, Gunnar; Hodnebrog, Øivind; Cameron-Smith, Philip J.; Deushi, Makoto; Hegglin, Michaela I.; Horowitz, Larry W.; Kramer, Ryan J.; Michou, Martine; Mills, Michael J.; Oliviè, Dirk Jan Leo; O’Connor, Fiona M.; Paynter, David; Samset, Bjørn Hallvard; Sellar, Alistair; Shindell, Drew; Takemura, Toshihiko; Tilmes, Simone; Wu, Tongwen (Journal article; Peer reviewed, 2020)
      Radiative forcing (RF) time series for total ozone from 1850 up to the present day are calculated based on historical simulations of ozone from 10 climate models contributing to the Coupled Model Intercomparison Project ...

    • How aerosols and greenhouse gases influence the diurnal temperature range 

      Stjern, Camilla Weum; Samset, Bjørn Hallvard; Boucher, Olivier; Iversen, Trond; Lamarque, Jean-Francois; Myhre, Gunnar; Shindell, Drew; Takemura, Toshihiko (Journal article; Peer reviewed, 2020)
      The diurnal temperature range (DTR) (or difference between the maximum and minimum temperature within a day) is one of many climate parameters that affects health, agriculture and society. Understanding how DTR evolves ...

    • 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, ...

    • Interactions between atmospheric composition and climate change - progress in understanding and future opportunities from AerChemMIP, PDRMIP, and RFMIP 

      Fiedler, Stephanie; Naik, Vaishali; O'Connor, Fiona M.; Smith, Christopher J.; Griffiths, Paul; Kramer, Ryan J.; Takemura, Toshihiko; Allen, Robert J.; Im, Ulas; Kasoar, Matthew; Modak, Angshuman; Turnock, Steven; Voulgarakis, Apostolos; Watson-Parris, Duncan; Westervelt, Daniel M.; Wilcox, Laura J.; Zhao, Alcide; Collins, William J.; Schulz, Michael; Myhre, Gunnar; Forster, Piers M. (Peer reviewed; Journal article, 2024)
      The climate science community aims to improve our understanding of climate change due to anthropogenic influences on atmospheric composition and the Earth's surface. Yet not all climate interactions are fully understood, ...

    • Multi-model simulations of aerosol and ozone radiative forcing due to anthropogenic emission changes during the period 1990-2015 

      Myhre, Gunnar; Aas, Wenche; Cherian, Ribu; Collins, W; Faluvegi, Greg; Flanner, M.; Forster, Piers M.; Hodnebrog, Øivind; Klimont, Zbigniew; Lund, Marianne Tronstad; Mulmenstädt, Johannes; Myhre, Cathrine Lund; Oliviè, Dirk Jan Leo; Prather, Michael J.; Quaas, Johannes; Samset, Bjørn Hallvard; Schnell, Jordan; Schulz, Michael; Shindell, Drew; Skeie, Ragnhild Bieltvedt; Takemura, Toshihiko; Tsyro, Svetlana G. (Peer reviewed; Journal article, 2017)
      Over the past few decades, the geographical distribution of emissions of substances that alter the atmospheric energy balance has changed due to economic growth and air pollution regulations. Here, we show the resulting ...

    • The Regional Aerosol Model Intercomparison Project (RAMIP) 

      Wilcox, Laura J.; Allen, Robert J.; Samset, Bjørn Hallvard; Bollasina, Massimo A.; Griffiths, Paul T.; Keeble, James; Lund, Marianne Tronstad; Makkonen, Risto; Merikanto, Joonas; O'Donnell, Declan; Paynter, David J.; Persad, Geeta G.; Rumbold, Steven T.; Takemura, Toshihiko; Tsigaridis, Kostas; Undorf, Sabine; Westervelt, Daniel M. (Peer reviewed; Journal article, 2023)
      Changes in anthropogenic aerosol emissions have strongly contributed to global and regional trends in temperature, precipitation, and other climate characteristics and have been one of the dominant drivers of decadal trends ...

    • 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. ...