Simulation period: 400 years. Constant external forcings (permanent 1990 GHG concentrations): Solar constant: 1365 W / m*2, CO2: 353 ppm, CH4: 1689 ppb, N2O: 307.9 ppb. Initial conditions: The simulation was initialised at the end of a 110 year spin-down control run. The spin-down control run was forced with the following constant external forcings: Solar constant: 1365 W / m*2, CO2: 353 ppm, CH4: 1689 ppb, N2O: 307.9 ppb. The spin-down run startet at the end of the so-called Erik-the-Red run with ECHO-G (EH4T30L19_HOPE-GL20_ETR) in 1990. Control simulation is similar to a control simulation from S. Legutke (45005_a05), but with differnet initial condition - mainly with a different seaice distribution. Datasets with monthly average values are also available. Technical data to this experiment: The experiment is using ECHO-g: ECHAM4 (f90) + HOPE-g and was run on a NEC-SX (hurrikan)