The SRES data sets were published by the IPCC in 2000 and classified
into four different scenario families (A1, A2, B1, B2).
SRES_B1 storyline describes a global population similar to
A1 but with rapid change in economic structure toward a
service and information economy, with reduction in material
intensity and the introduction of clean and resource efficient
The model developed by the Center for Climate System Resaerch/
National Institute for Enviromental Studies in Tokyo consists
of the atmospheric component which has vertical resolution of
20 levels and the triangular truncation at wavenumber 21 (T21).
The ocean model has 17 vertical levels and the same resolution.
The changes of anthropogenic emissions of CO2, CH4, N2O and
sulphur dioxide are prescribed according to the above mentioned