The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): Overview and description of models, simulations and climate diagnostics

The 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.

To Access Resource:

Questions? Email Resource Support Contact:

  • opensky@ucar.edu
    UCAR/NCAR - Library

Resource Type publication
Temporal Range Begin N/A
Temporal Range End N/A
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format PDF
Standardized Resource Format PDF
Asset Size N/A
Legal Constraints

Copyright Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License.
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email opensky@ucar.edu
Resource Support Organization UCAR/NCAR - Library
Distributor N/A
Metadata Contact Name N/A
Metadata Contact Email opensky@ucar.edu
Metadata Contact Organization UCAR/NCAR - Library

Author Lamarque, Jean-François
Shindell, D.
Josse, B.
Young, P.
Cionni, I.
Eyring, V.
Bergmann, D.
Cameron-Smith, P.
Collins, W.
Doherty, R.
Dalsoren, S.
Faluvegi, G.
Folberth, G.
Ghan, S.
Horowitz, L.
Lee, Y.
MacKenzie, I.
Nagashima, T.
Naik, V.
Plummer, D.
Righi, M.
Rumbold, S.
Schulz, M.
Skeie, R.
Stevenson, D.
Strode, S.
Sudo, K.
Szopa, S.
Voulgarakis, A.
Zeng, G.
Publisher UCAR/NCAR - Library
Publication Date 2013-02-07T00:00:00
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier N/A
Resource Version N/A
Topic Category geoscientificInformation
Progress N/A
Metadata Date 2025-07-15T21:29:47.298356
Metadata Record Identifier edu.ucar.opensky::articles:12609
Metadata Language eng; USA
Suggested Citation Lamarque, Jean-François, Shindell, D., Josse, B., Young, P., Cionni, I., Eyring, V., Bergmann, D., Cameron-Smith, P., Collins, W., Doherty, R., Dalsoren, S., Faluvegi, G., Folberth, G., Ghan, S., Horowitz, L., Lee, Y., MacKenzie, I., Nagashima, T., Naik, V., Plummer, D., Righi, M., Rumbold, S., Schulz, M., Skeie, R., Stevenson, D., Strode, S., Sudo, K., Szopa, S., Voulgarakis, A., Zeng, G.. (2013). The Atmospheric Chemistry and Climate Model Intercomparison Project (ACCMIP): Overview and description of models, simulations and climate diagnostics. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7z0390p. Accessed 08 November 2025.

Harvest Source