Simulation of the climate before begin of industrialization (ca. 1800 A.D.). Boundary conditions are the same as in the control run (EH4_HOPE_T30-CTL), apart from the concentration of anthropogenic greenhouse gases: 280 ppmV CO2 (instead of 353), 0.7 ppmV CH4 (instead of 1.72) and 265 ppbV N2O (instead of 310). ECHO-G is used as climate model. It is a coupled atmosphere/ocean model (ECHAM4_T30 + HOPE-E_T42er). The simulation was run on a NEC-SX6 (hurrikan). Atmospheric data is stored every 12 hours. Monthly means are available, too. Ocean data is stored every month. Related experiments: - EH4_HOPE_T30-CTL control run (1000 years of simulation) (run c04) - EH4_HOPE_T30-EEM eemian climate at 125,000 year before present (run a10) The output from the model run: schauer.dkrz.de:/pf/k/k204065/cecho/echam4f90_t30/65020_a20/output[1-299]