• A multimodel examination of climate Extremes in an idealized geoengineering experiment 

      Curry, Charles L.; Sillmann, Jana; Bronaugh, David; Alterskjær, Kari; Cole, Jason N.S.; Ji, Duoying; Kravitz, Ben; Kristjansson, Jon Egill; Moore, John C.; Muri, Helene Østlie; Niemeier, Ulrike; Robock, Alan; Tilmes, Simone; Yang, Shuting (Peer reviewed; Journal article, 2014)
      Temperature and precipitation extremes are examined in the Geoengineering Model Intercomparison Project experiment G1, wherein an instantaneous quadrupling of CO2 from its preindustrial control value is offset by a ...
    • 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 ...
    • 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 ...
    • 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 ...
    • A machine learning examination of hydroxyl radical differences among model simulations for CCMI-1 

      Nicely, Julie M.; Duncan, Bryan; Hanisco, Thomas F.; Wolfe, Glenn M.; Salawitch, Ross J.; Deushi, Makoto; Haslerud, Amund Søvde; Jöckel, Patrick; Josse, Béatrice; Kinnison, Douglas E.; Klekociuk, Andrew; Manyin, Michael E.; Marécal, Virginie; Morgenstern, Olaf; Murray, Lee T.; Myhre, Gunnar; Oman, Luke D.; Pitari, Giovanni; Pozzer, Andrea; Quaglia, Ilaria; Revell, Laura E.; Rozanov, Eugene; Stenke, Andrea; Stone, Kane; Strahan, Susan E.; Tilmes, Simone; Tost, Holger; Westervelt, Daniel M.; Zeng, Guang (Journal article; Peer reviewed, 2020)
      The hydroxyl radical (OH) plays critical roles within the troposphere, such as determining the lifetime of methane (CH4), yet is challenging to model due to its fast cycling and dependence on a multitude of sources and ...
    • 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 ...
    • The Geoengineering Model Intercomparison Project Phase 6 (GeoMIP6): Simulation design and preliminary results 

      Kravitz, Ben; Robock, Alan; Tilmes, Simone; Boucher, Olivier; English, Jason. M.; Irvine, Peter J.; Jones, Andy; Lawrence, Mark G.; MacCracken, Michael; Muri, Helene; Moore, John C.; Niemeier, Ulrike; Phipps, Steven J.; Sillmann, Jana; Storelvmo, Trude; Wang, Hailong; Watanabe, Shingo (Peer reviewed; Journal article, 2015)
      We present a suite of new climate model experiment designs for the Geoengineering Model Intercomparison Project (GeoMIP). This set of experiments, named GeoMIP6 (to be consistent with the Coupled Model Intercomparison ...
    • The Geoengineering Model Intercomparison Project Phase 6 (GeoMIP6): Simulation design and preliminary results 

      Kravitz, Ben; Robock, Alan; Tilmes, Simone; Boucher, Olivier; English, Jason. M.; Irvine, Peter J.; Jones, Andy; Lawrence, Mark G.; MacCracken, Michael; Muri, Helene; Moore, John C.; Niemeier, Ulrike; Phipps, Steven J.; Sillmann, Jana; Storelvmo, Trude; Wang, Hailong; Watanabe, Shingo (Peer reviewed; Journal article, 2015)
      We present a suite of new climate model experiment designs for the Geoengineering Model Intercomparison Project (GeoMIP). This set of experiments, named GeoMIP6 (to be consistent with the Coupled Model Intercomparison ...
    • The Geoengineering Model Intercomparison Project Phase 6 (GeoMIP6): Simulation design and preliminary results 

      Kravitz, Ben; Robock, Alan; Tilmes, Simone; Boucher, Olivier; English, Jason. M.; Irvine, Peter J.; Jones, Andy; Lawrence, Mark G.; MacCracken, Michael; Muri, Helene; Moore, John C.; Niemeier, Ulrike; Phipps, Steven J.; Sillmann, Jana; Storelvmo, Trude; Wang, Hailong; Watanabe, Shingo (Peer reviewed; Journal article, 2015)
      We present a suite of new climate model experiment designs for the Geoengineering Model Intercomparison Project (GeoMIP). This set of experiments, named GeoMIP6 (to be consistent with the Coupled Model Intercomparison ...