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The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): Overview and Description of Models, Simulations and Climate DiagnosticsThe Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP) consists of a series of time slice experiments targeting the long-term changes in atmospheric composition between 1850 and 2100, with the goal of documenting composition changes and the associated radiative forcing. In this overview paper, we introduce the ACCMIP activity, the various simulations performed (with a requested set of 14) and the associated model output. The 16 ACCMIP models have a wide range of horizontal and vertical resolutions, vertical extent, chemistry schemes and interaction with radiation and clouds. While anthropogenic and biomass burning emissions were specified for all time slices in the ACCMIP protocol, it is found that the natural emissions are responsible for a significant range across models, mostly in the case of ozone precursors. The analysis of selected present-day climate diagnostics (precipitation, temperature, specific humidity and zonal wind) reveals biases consistent with state-of-the-art climate models. The model-to- model comparison of changes in temperature, specific humidity and zonal wind between 1850 and 2000 and between 2000 and 2100 indicates mostly consistent results. However, models that are clear outliers are different enough from the other models to significantly affect their simulation of atmospheric chemistry.
Document ID
20140011122
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Lamarque, J.-F.
(National Center for Atmospheric Research Boulder, CO, United States)
Shindell, D. T.
(NASA Goddard Inst. for Space Studies New York, NY United States)
Naik, V.
(National Oceanic and Atmospheric Administration Princeton, NJ, United States)
Plummer, D.
(Environment Canada Victoria, British Columbia, Canada)
Josse, B.
(Centre National de Recherches Meteorologiques Toulouse, France)
Righi, M.
(Deutsches Zentrum fuer Luft- und Raumfahrt e.V. Oberpfaffenhofen, Germany)
Rumbold, S. T.
(Meteorological Office Exeter, United Kingdom)
Schulz, M.
(Norwegian Meteorological Inst. Oslo, Norway)
Skeie, R. B.
(Center for International Climate and Environmental Research Oslo, Norway)
Strode, S.
(Universities Space Research Association Columbia, MD, United States)
Young, P. J.
(Colorado Univ. Boulder, CO, United States)
Cionni, I.
(Agenzia Nazionale per le Nuove Tecnologie, l'Energia e lo Sviluppo Economico Sostenibile Bologna, Italy)
Dalsoren, S.
(Center for International Climate and Environmental Research Oslo, Norway)
Eyring, V.
(Deutsches Zentrum fuer Luft- und Raumfahrt e.V. Oberpfaffenhofen, Germany)
Bergmann, D.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Cameron-Smith, P.
(Lawrence Livermore National Lab. Livermore, CA, United States)
Collins, W. J.
(Meteorological Office Exeter, United Kingdom)
Doherty, R.
(Edinburgh Univ. United Kingdom)
Faluvegi, G.
(Columbia Univ. New York, NY, United States)
Folberth, G.
(Meteorological Office Exeter, United Kingdom)
Ghan, S. J.
(Pacific Northwest National Lab. Richland, WA, United States)
Horowitz, L. W.
(National Oceanic and Atmospheric Administration Princeton, NJ, United States)
Lee, Y. H.
(Columbia Univ. New York, NY, United States)
MacKenzie, I. A.
(Edinburgh Univ. United Kingdom)
Nagashima, T.
(Frontier Research Ctr for Global Change Yokohama, Japan)
Date Acquired
August 27, 2014
Publication Date
February 7, 2013
Publication Information
Publication: Geoscientific Model Development
Publisher: Copernicus Publications
Volume: 6
Issue: 1
ISSN: 1991-959X
Subject Category
Meteorology And Climatology
Report/Patent Number
GSFC-E-DAA-TN11380
Funding Number(s)
CONTRACT_GRANT: NNG11HP16A
WBS: WBS 509496.02.08.04.24
CONTRACT_GRANT: NNX10AU63A
Distribution Limits
Public
Copyright
Other
Keywords
humidity
wind (meteorology)
climate models

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