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 atmospheric component solves the primitive equations using

a spectral transform method, GFDL_R30 means a rhomboidal 30

truncation and the ocean component solves the primitive equation

of motion using the Boussinesq, rigid-lid and hydrostatic

approximation and based on GFDL Modular Ocean Model version 1.

The changes of anthropogenic emissions of CO2, CH4, N2O and

sulphur dioxide are prescribed according to the above

mentioned scenario.