Search Results

You are looking at 1 - 4 of 4 items for :

  • Risk assessment x
  • CCSM4/CESM1 x
  • All content x
Clear All
Kirsten Zickfeld, Michael Eby, Andrew J. Weaver, Kaitlin Alexander, Elisabeth Crespin, Neil R. Edwards, Alexey V. Eliseev, Georg Feulner, Thierry Fichefet, Chris E. Forest, Pierre Friedlingstein, Hugues Goosse, Philip B. Holden, Fortunat Joos, Michio Kawamiya, David Kicklighter, Hendrik Kienert, Katsumi Matsumoto, Igor I. Mokhov, Erwan Monier, Steffen M. Olsen, Jens O. P. Pedersen, Mahe Perrette, Gwenaëlle Philippon-Berthier, Andy Ridgwell, Adam Schlosser, Thomas Schneider Von Deimling, Gary Shaffer, Andrei Sokolov, Renato Spahni, Marco Steinacher, Kaoru Tachiiri, Kathy S. Tokos, Masakazu Yoshimori, Ning Zeng, and Fang Zhao

1. Introduction This paper summarizes the results of a model intercomparison project undertaken in support of the Fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change (IPCC). Fifteen groups running Earth System Models of Intermediate Complexity (EMICs) participated in the intercomparison. Coordinated experiments include simulations of the climate of the past millennium and simulations of long-term future climate change, in addition to a set of idealized experiments

Full access
Samantha Stevenson, Baylor Fox-Kemper, Markus Jochum, Richard Neale, Clara Deser, and Gerald Meehl

emissions and atmospheric concentrations . U.S. Climate Change Science Program and the Subcommittee on Global Change Research Sub-Rep. 2.1A of Synthesis and Assessment Product 2.1, Department of Energy, Office of Biological and Environmental Research, 154 pp . Collins , M. , and Coauthors , 2010 : The impact of global warming on the tropical Pacific Ocean and El Niño . Nat. Geosci. , 3 , 391 – 397 , doi:10.1038/NGEO868 . Dai , A. , K. E. Trenberth , and T. R. Karl , 1998 : Global

Full access
Gretchen Keppel-Aleks, James T. Randerson, Keith Lindsay, Britton B. Stephens, J. Keith Moore, Scott C. Doney, Peter E. Thornton, Natalie M. Mahowald, Forrest M. Hoffman, Colm Sweeney, Pieter P. Tans, Paul O. Wennberg, and Steven C. Wofsy

technology, leading to reliance on local and high-carbon-content fuels ( Riahi et al. 2011 ). These simulations began in the year 2005, with initial conditions provided by the historical simulation described above, and were run to 2100. Fossil fuel emission trajectories consistent with the nominal radiative forcing for these two scenarios were developed using two different integrated assessment models (IAMs) ( van Vuuren et al. 2011 ). The regionally aggregated emissions generated by the IAMs were

Full access
Gerald A. Meehl, Warren M. Washington, Julie M. Arblaster, Aixue Hu, Haiyan Teng, Claudia Tebaldi, Benjamin N. Sanderson, Jean-Francois Lamarque, Andrew Conley, Warren G. Strand, and James B. White III

with models of intermediate complexity include mean values of 1.6°C (5%–95% limits of 1.11°C to 2.34°C, Knutti and Tomassini 2008 ) and 1.9°C ( Stott and Forest 2007 ). For AOGCMs in the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4), the 10%–90% confidence limits are about 1°–3°C, with a mean TCR from the CMIP3 AOGCMs of 1.8°C ( Meehl et al. 2007 ). Thus, the CCSM4 TCR value of 1.73°C is close to those other estimates. For further discussion of equilibrium climate

Full access