10.1594/WDCC/EH4_OPYC_SRES_A2_TD
Stendel, Martin
Schmith, Torben
Roeckner, Erich
Cubasch, Ulrich
EH4_OPYC_SRES_A2_TD
World Data Center for Climate (WDCC)
2004
Climate
Stendel, Martin
2003-01-26
eng
Digital
10.1594/WDCC/EH4_OPYC_SRES_A2
1 dataset
GRIB
1
Open access data at least for academic use.
Project: IPCC Third Assessment Report ECHAM4/OPYC data sets
The project embrases the simulations with the coupled climate model ECHAM4/OPYC, relevant for the third assessment report (TAR, http://www.ipcc.ch/ipccreports/assessments-reports.htm) of the Intergovernmental Panel on Climate Change (IPCC).The IPCC has been established by WMO and UNEP to assess scientific, technical and socio-economic information, relevant for the understanding of climate change, its potential impacts and options for adaption and mitigation.
A more detailed description about the work of the IPCC can be found at the IPCC homepage ( http://www.ipcc.ch ) and at ( www.grida.no/climate/ipcc ). As a further development the Special Report on Emission Scenarios (SRES, http://www.grida.no/Climate/ipcc/emission/) have been constructed, to describe (potential) future developments in the global enviroment with special reference to the production of greenhouse gases and aerosol precursor emissions.
A set of four scenarios families (A1, A2, B1, B2) have been developed (see also http://www.grida.no/climate/ipcc/emission/index.htm ) The model output data are available at the World Data Center for Climate, Hamburg.( wdc-climate.de ). Projection of future trends based on selected emission scenarios are provided through this project for a great many model variables of ECHAM4/OPYC.
For a selected set of variables the IDCC-Data Distribution Center provides additional data sets from a multitude of models that contribute to the IPCC-TAR report (project: IPCC_DDC_TAR).
Summary: The SRES data sets were published by the IPCC in 2000 and classified into four different scenario families (A1, A2, B1, B2). SRES-A2 storyline describes a very heterogeneous world with the underlying theme of self-reliance and preservation of local identities. It results in this scenario a continous increasing population together with a slower economic growth and technological change.
The model consists of the atmospheric component which based on the weather forecast model of ECMWF. The atmospheric component is the standard model version of a 19-level hybrid sigma-pressure coordinate system.
The ocean component is a model which computes with isopycnal coordinates.
ECHAM4/OPYC3(http://cera-www.dkrz.de/IPCC_DDC/SRES/ECHAM4/echam4opyc3.html ).
This data set is an enlargement of the IPCC data set and provides additional meteorological parameters.
The run produces 6h values of the variables.
ECHAM4/OPYC3 (http://cera-www.dkrz.de/IPCC_DDC/SRES/ECHAM4/echam4opyc3.html ).
Changes of anthropogenic emissions of CO2, CH4, N2O and sulphur dioxide are prescribed according to the above mentioned scenario. The model run starts in 1990 from the results of the scenario run GSDIO (Experiment EH4OPYC_22723GSDIO) which has been run with observed conditions for the time periode 1860 to 1990.