IPCC Experiments
IPCC ECHAM5-MPI-OM experiments
| Name in WDCC | 6Hour | Monthly | Period | Description | Ident-Name |
|---|---|---|---|---|---|
| EH5-T63L31_OM-GR1.5L40_CTL | 6H | MM | 2150-2655 | Pre-industrial control experiment | PI contrl |
| EH5-T63L31_OM-GR1.5L40_20C_1 EH5-T63L31_OM-GR1.5L40_20C_2 EH5-T63L31_OM-GR1.5L40_20C_3 |
6H 6H 6H |
MM MM MM |
1860-2000 1860-2000 1860-2000 |
20th century with anthropogenic forcing (greenhouse gases, sulfate) initialized in year 2190 of CTL 2. realisation (initialized in year 2215 of CTL) 3. realisation (initialized in year 2240 of CTL) |
20C3M |
| EH5-T63L31_OM-GR1.5L40_20C_1 EH5-T63L31_OM-GR1.5L40_20C_2 EH5-T63L31_OM-GR1.5L40_20C_3 |
6H 6H 6H |
MM MM MM |
2001-2100 2001-2070 2001-2100 |
Commitment experiment with constant concentrations (year 2000) 2. realisation 3. realisation |
Commit |
| EH5-T63L31_OM-GR1.5L40_A1B_1 EH5-T63L31_OM-GR1.5L40_A1B_2 EH5-T63L31_OM-GR1.5L40_A1B_3 |
6H 6H 6H |
MM MM MM |
2001-2100 2001-2100 2001-2100 |
SRES Szenario: A1B(initialized in year 2000 of 20C_1) 2. realisation (initialized in year 2000 of 20C_2) 3. realisation (initialized in year 2000 of 20C_3) |
SRES A1B |
| EH5-T63L31_OM-GR1.5L40_A1B_1 EH5-T63L31_OM-GR1.5L40_A1B_2 EH5-T63L31_OM-GR1.5L40_A1B_3 |
6H 6H 6H |
MM MM MM |
2101-2200 2101-2300 2101-2200 |
Commitment experiment with constant concentrations (year 2100) 2. realisation 3. realisation |
Commit |
| EH5-T63L31_OM-GR1.5L40_B1_1 EH5-T63L31_OM-GR1.5L40_B1_2 EH5-T63L31_OM-GR1.5L40_B1_3 |
6H 6H 6H |
MM MM MM |
2001-2100 2001-2100 2001-2100 |
SRES Szenario B1 (initialized in year 2000 of 20C_1) 2. realisation (initialized in year 2000 of 20C_2) 3. realisation (initialized in year 2000 of 20C_3) |
SRES B1 |
| EH5-T63L31_OM-GR1.5L40_B1_1 EH5-T63L31_OM-GR1.5L40_B1_2 EH5-T63L31_OM-GR1.5L40_B1_3 |
6H 6H 6H |
MM MM MM |
2101-2200 2101-2200 2101-2200 |
Commitment experiment with constant concentrations (year 2100) 2. realisation 3. realisation |
Commit |
| EH5-T63L31_OM-GR1.5L40_A2_1 EH5-T63L31_OM-GR1.5L40_A2_2 EH5-T63L31_OM-GR1.5L40_A2_3 |
6H 6H 6H |
MM MM MM |
2001-2100 2001-2100 2001-2100 |
SRES Szenario A2 (initialized in year 2000 of 20C_1) 2. realisation (initialized in year 2000 of 20C_2) 3. realisation (initialized in year 2000 of 20C_3) |
SRES A2 |
| EH5-T63L31_OM_1CO2_1 EH5-T63L31_OM_1CO2_2 EH5-T63L31_OM_1CO2_3 |
6H 6H 6H |
MM MM MM |
1860-1930 1860-1930 1860-1930 |
CO2 only: Annual increase of 1% until CO2 doubling w.r.t. CTL in year 1930 (initialized in year 1860 of 20C_1) All other concentrations like CTL 2. realisation (initialized in year 1860 of 20C_2) 3. realisation (initialized in year 1860 of 20C_3) |
1% to 2x |
| EH5-T63L31_OM_1CO2_1 EH5-T63L31_OM_1CO2_2 EH5-T63L31_OM_1CO2_3 |
6H 6H 6H |
MM MM MM |
1931-2080 1931-2080 1931-2080 |
Stabilization at CO2 doubling 2. realisation 3. realisation |
|
| EH5-T63L31_OM-GR1.5_CMIP4_1 EH5-T63L31_OM-GR1.5_CMIP4_1 |
6H 6H |
MM MM |
1930-2000 2001-2188 |
CO2 only: Annual increase of 1% until CO2 quadrupling w.r.t. CTL in year 2000 (continuation of 1CO2_2) Stabilization at CO2 quadrupling |
1% to 4x |
| EH5-T63L31_MLO_CTRL | 6H | MM | 2001-2100 | Jan 1978 from AMIP (run 1) including precalculated Q-flux from AMIP (run 1). Well mixed greenhouse gases (CO2, CH4, N2O, F11, F12) are constant (year 1985). Present-day ozone climatology (Fortuin and Kelder, 1998) and background aerosol (Tanre et al., 1984) is applied. | Slabcntl |
| EH5-T63L31_MLO_2CO2 | 6H | MM | 2001-2100 | Instantaneous CO2 doubling w.r.t. Slbcntl (model years 2001-2100 in database). | 2xCO2 |
| EH5-T63L31_AMIP_1 EH5-T63L31_AMIP_2 EH5-T63L31_AMIP_3 |
6H 6H 6H |
MM MM MM |
1978-1999 1978-1999 1978-1999 |
Jan. 1978 (observed) for all 3 runs. Initial perturbations in runs 2, 3 are realized by small changes in the horizontal diffusion coefficients during the first month. Well mixed greenhouse gases (CO2, CH4, N2O, F11, F12) are constant (year 1985). Present-day ozone climatology (Fortuin and Kelder, 1998) and background aerosol (Tanre et al., 1984) is applied. | AMIP |
Comments
- 'Name' denotes the experiment name in the CERA database
- 'period' is the time in calendar years for experiments 20C, A1B, B1 und A2. In the experiments CTL, 1CO2 und CMIP4 there is no reference to the calendar. In experiment 1CO2, for example, model year 1930 denotes year 70 (the time of CO2 doubling) after the start of the experiment.
- 'CTL' is a long control experiment performed under 'pre-industrial' conditions, i.e. the concentrations of well mixed greenhouse gases are fixed at the respective levels of year 1860. No sulfate aerosol is used in CTL. The aim is the reconstruction of a non-drifting climate state representative for the middle of the 19th century as starting point for experiments 20C und 1CO2.
- The model consists of the atmospheric general circulation model ECHAM5 (Roeckner et al., 2003) in T63L31 resolution and the ocean general circulation model MPI-OM (Marsland et al., 2003) in 1.5°L40 resolution. The models are coupled without flux corrections.
- Forcing data for transient runs: The concentrations of CO2, CH4, N2O, CFC-11*, CFC-12, O3 and SO4 are prescribed as a function of time (CFC-11* includes the radiative effects of minor CFC's). The long-lived greenhouse gases (CO2 etc.) are prescribed as global annual means. Ozone is prescribed as 2-dimensional distribution (height, latitude) for every month. The 3-dimensional distribution of sulfate aerosol is available every 10 to 20 years as monthly means. The actual concentrations at each grid point and time step are obtained by linear interpolation. Both the direct effect and the 1st indirect (albedo) effect are taken into account.
Model Information ECHAM5_MPI-OM
latest update: 2008-03-14 10:45