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|Title of Dataset|| - ACCMIP (Emissions for Atmospheric Chemistry and Climate Model Intercomparison Project) emissions dataset
- RCPs (Representation Concentration Pathways) emission scenarios
|Abstract|| In support of the fifth IPCC-AR5 (Intergovernmental Panel for Climate Change Assessment Report 5),
2 emission datasets have been developed : the ACCMIP historical emissions dataset (Lamarque et al, 2010), and
the emissions projections called RCPs (Representation Concentration Pathways), described in van Vuuren et al., 2010.
During the past few years, a community effort led to the development of the ACCMIP emissions, a dataset of monthly, sectoral, gridded anthropogenic and biomass burning emissions covering the historical period (1850-2000) (Lamarque et al, 2010). the RCP projections of future emissions (Representative Concentration Pathways) are based on selected scenarios from four independent modeling teams/models.
The primary purpose of the ACCMIP inventory and the RCPs is to provide consistent gridded emissions of reactive gases and aerosols for use in chemistry model simulations needed by climate models for CMIP5.
The year 2000 was chosen as the reference year, since ACCMIP 2000 emissions represent a combination of the best information available from existing regional and global inventories in the years 2008-2009 when the inventory was built. For anthropogenic emissions, 40 regions and 12 sectors were used to combine the various sources. Both the historical ACCMIP emissions and the RCPs future emission trends were then forced, as an handshake requirement, to agree with the 2000 estimate, ensuring continuity between past, 2000 emissions and future projections.
The RCPs emissions were developed by four modeling teams. Each of them applied a set of algorithms to ensure consistency with the 2000 emission inventory. The RCPs are named according to their 2100 radiative forcing level, i.e. RCP 8.5 corresponds to a radiative forcing of 8.5 W.m-2 in 2100. A documentation for each of the four RCPs is available at: http://www.iiasa.ac.at/web-apps/tnt/RcpDb
|Reference (requested when used in any study)||
- For the ACCMIP emissions : J.F. Lamarque et al., 2010 Historical (1850-2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application, Atmospheric Chemistry and Physics, 2010 (ACP-2010-67)
- For the RCPs emissions : van Vuuren et al., 2010 and
* van Vuuren, D., M. den Elzen, P. Lucas, B. Eickhout, B. Strengers, B. van Ruijven, S. Wonink, R. van Houdt, 2007. Stabilizing greenhouse gas concentrations at low levels: an assessment of reduction strategies and costs. Climatic Change, doi:10.1007/s/10584-006-9172-9.
* Clarke, L., J. Edmonds, H. Jacoby, H. Pitcher, J. Reilly, R. Richels, 2007. Scenarios of Greenhouse Gas Emissions and Atmospheric Concentrations. Sub-report 2.1A of Synthesis and Assessment Product 2.1 by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. Department of Energy, Office of Biological & Environmental Research, Washington, 7 DC., USA, 154 pp.
* Smith, S.J. and T.M.L. Wigley, 2006. Multi-Gas Forcing Stabilization with the MiniCAM. Energy Journal (Special Issue #3) pp 373-391.
* Wise, MA, KV Calvin, AM Thomson, LE Clarke, B Bond-Lamberty, RD Sands, SJ Smith, AC Janetos, JA Edmonds. 2009. Implications of Limiting CO2 Concentrations for Land Use and Energy. Science. 324:1183-1186. May 29, 2009.
* Fujino, J., R. Nair, M. Kainuma, T. Masui, Y. Matsuoka, 2006. Multi-gas mitigation analysis on stabilization scenarios using AIM global model. Multigas Mitigation and Climate Policy. The Energy Journal Special Issue.
* Hijioka, Y., Y. Matsuoka, H. Nishimoto, M. Masui, and M. Kainuma, 2008. Global GHG emissions scenarios under GHG concentration stabilization targets. Journal of Global Environmental Engineering 13, 97-108.
* Riahi, K. Gruebler, A. and Nakicenovic N.: 2007. Scenarios of long-term socio-economic and environmental development under climate stabilization. Technological Forecasting and Social Change 74, 7, 887-935.
|Documentation||see Lamarque et al., ACP, 2010 and http://www.iiasa.ac.at/web-apps/tnt/RcpDb|
|Keywords||emissions, gases, aerosols, historical, scenario, projections, IPCC-AR5, RCPs|
|Production Date||2009 and 2010|
|Authors name|| Jean-Francois Lamarque (1) et al., Detlef van Vuuren (2) et al.,
RCP 3-PD (IMAGE): Detlef van Vuuren (firstname.lastname@example.org)
RCP 4.5 (MiniCAM): Allison Thomson (Allison.Thomson@pnl.gov)
RCP 6.0 (AIM): Toshihiko Masui (email@example.com)
RCP 8.5 (MESSAGE): Keywan Riahi (firstname.lastname@example.org)
|Institutions|| (1) National Center for Atmospheric Research, Boulder, USA
(2) Netherlands environmental Assessment Agency, Bilthoven, The Netherlands
|Emails||J.F.Lamarque :email@example.com, firstname.lastname@example.org, Allison.Thomson@pnl.gov, email@example.com, T. Masui :firstname.lastname@example.org|
|Web link||RCP database|
|SPATIAL AND TEMPORAL INFORMATION|
|Geographical Coverage|| LONG : -180 W to 180 E
LAT : -90 S to 90 N
|Spatial Resolution||0.5 x 0.5 degree|
|Temporal Coverage of the Data|| ACCMIP : 1850 -2000
RCPs : 2000 -2100
|Temporal Resolution||1 decade|
|Methodology|| - For the ACCMIP dataset, see: Lamarque et al., ACP 2010 (ACP-2010-67).
- For the RCPs database, see references above for the different RCP projections.
The anthropogenic and biomass burning emissions for year 2000 are built from a combination of existing regional and global inventories to capture the best information available at this point; for anthropogenic sectors, 40 regions and 12 sectors were used to combine the various sources. The historical reconstruction of each emitted compound, for each region and sector, was then forced to agree with the 2000 estimate, ensuring continuity between past and 2000 emissions.
The RCP projections of future emissions are based on the outcomes of four independent modeling teams (NIES/AIM, IIASA/MESSAGE, PNNL/MiniCAM, and PBL/IMAGE). Each of them applied a set of algorithms to ensure consistency with the 2000 historical emission inventory.
|Data source(s)|| ACCMIP anthropogenic emissions are derived from a combination and harmonization of many existing emission inventories
(RETRO, EDGAR, EMEP, EPA, REAS, ...).
ACCMIP biomass burning emissions are derived from a harmonization of GFEDv2, RETRO, and GICC datasets.
|Unit||kg(specie)/m2/s in the GEIA portal -(molecular weights are indicated in the netcdf files) -|
|Format||in the data portal: NetCDF - 1 file per year and per specie|
|File Size (on GEIA portal)||NetCDF file: 25 Mb|
|Remarks, questions||Contact the authors|