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The first DECK simulation is the piControl simulation which requires a minimum of 500 years. Other experiments will all be initialized by branching of from piControl at various stages. A possible scenario is provided in the figure below. Historical_H1, 1pctCO2, and abrupt-4xCO2 would start from year 101 of piControl, amip from year 1870 of historical_H1, historical_H2 from year 151 of piControl and all remaining historical members would be spaced 50 years apart (201, 251, 301).
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Initialization and final tuning (description)
piControl (simulation page)
Initialization
Due to time constraints, piControl year 1 (0001-01-01) initial conditions are taken from a pre-existing simulation rather than starting a new spin-up from scratch. The initial conditions are 0331-01-01 of 20171228.beta3rc13_1850.ne30_oECv3_ICG.edison.
Provenance of initial conditions:
- MPAS-O stand-alone initialization
- 10 years of G-case (/wiki/spaces/OCNICE/pages/130353452)
- Ocean and sea-ice restart as initial conditions for
- 50 years coupled FCT2 (0001-0051; /wiki/spaces/OCNICE/pages/161349662)
- Year 51 ocean and sea-ice restart as initial conditions for
- 150 years of coupled beta3rc10 (0001-0151; 20171122.beta3rc10_1850.ne30_oECv3_ICG.edison)
- Year 151 atmosphere, land, river, ocean and sea-ice restart as initial conditions for
- 100 years of coupled beta3rc11 (0151-0251; 20171122.beta3rc11_1850.ne30_oECv3_ICG.edison)
- Year 251 atmosphere, land, river, ocean and sea-ice restart as initial conditions for
- 80 years of coupled beta3rc13 (0251-0331; 20171228.beta3rc13_1850.ne30_oECv3_ICG.edison)
- Year 331 atmosphere, land, river, ocean and sea-ice restart as initial conditions for
- DECK v1 piControl
Final tuning
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- 20180129.DECKv1a_piControl.ne30_oEC.edison : identical tuning as in beta3rc13, but with a slightly updated version of the code base.
- 20180129.DECKv1b_piControl.ne30_oEC.edison : same, except for a minor retuning of clubb_c14: 1.08 → 1.06. This is expected to only change net TOA fluxes by a few hundreds of a W/m2, but may help further reduce long-term drift (without hopefully changing its sign).
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abrupt-4xCO2 (simulation page)
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historical (simulation page)
Initialization
- Ensemble member H1: 0101-01-01 of v1b piControl
- Ensemble member H2: 0151-01-01 of v1b piControl
- Ensemble member H3: 0201-01-01 of v1b piControl
- Ensemble member H4: 0251-01-01 of v1b piControl
- Ensemble member H5: 0301-01-01 of v1b piControl
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