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NFAMIPDIRcorremX
Model-run description for two AeroCom A2 test simulations with CAM5-Oslo (NorESM2-M) (UNDER CONSTRUCTION)
Purpose of simulation: Aerosol check / validation for PD and PI conditions, with results shown on aerocom.met.no
Contact person: Alf Kirkevåg (alf.kirkevag@met.no)
Data owner: Alf Kirkevåg (alf.kirkevag@met.no)
Revision Number: r217 + not yet committed code
Production computer used: Cray XT in Bergen (hexagon)
Production date: May 2014
Ensemble runs: No
Storage locations: local disk (PI and PD) and aerocom-work (only PD simulation)
(/metno/aerocom/work/aerocom1/NorESM/CAM5-Oslo_TEST-emi2000)
Storage space: 26 Gb locally, 3.2 Gb at aerocom-work
Projects: EarthClim/EVA and AeroCom
Publications:
Papers in preparation:
Simulation name(s): aerocomA2noresm_r128_X, where X = 2006 (AeroCom-A2.CTRL), 1850 (AeroCom-A2.PRE), ZERO (AeroCom-A2.ZERO), 2006preSO4, 2006preffBC, 2006preffOC and 2006prebbBCOC
Compset name used: NFAEROCOM1850 for X=1850, NFAEROCOM2006 for the other experiments
Model type: Stand-alone cam (atmosphere) default with prescribed ocn/ice (ocean and sea-ice)
Type of run: Initial
Simulation period: 5 years
Spin-up period: 2 years
Initialisation:
Resolution: f19_g16 = 1.8×2.5
Emission year(s): 2006 (AeroCom-A2.CTRL), 1850 (AeroCom-A2.PRE), 2006 but with aerosol extiction set to 0 (AeroCom-A2.ZERO). For X = 2006preY all emissions are for year 2006, except that 1850 emissions are used for: SO2 and SO4 in the Y = SO4 experiment, fossil fuel BC / OC in the Y = ffBC / ffOC experiment, and biomass BC and OC in the Y = bbBCOC experiment.
Emission inventories: IPCC AR5 for 1850, AeroCom Phase II for 2006, see references in Kirkevåg et al. (2013)
Greenhouse gases: Prescribed concentrations
Frequency for output: Monthly
Active/changing forcing agents: Direct and indirect (1. & 2.) effects by anthropogenic SO4, POM and BC (for X = 2006 - 1850), or by all aerosols (2006 - ZERO, only direct effect), or by anthropogenic SO4 (2006 - 2006preSO4), ff BC (2006 - 2006preffBC), ff OC (2006 - 2006preffOC), or anthropogenic bb BC & OC (2006 - 2006prebbBCOC)
Special considerations:
Tuning parameters which are changed relative to the host model CAM4:
rhminl: 0.90 lower RH threshold for formation of low stratiform clouds (0.91 in CAM4)
critrp: 5.0 mm/day maximum prcipitation rate for suppression of autoconversion of cloud water (0.5 mm/day in CAM4)
r3lc: 14 um critical mean droplet volume radius for onset of autoconversion (10 um in CAM4)