====== aerocomA2r128_X ======

===== Model-run description for the full set of AeroCom A2 simulations with CAM4-Oslo/NorESM1-M =====

Purpose of simulation:  Model documentation and validation for PD conditions, participation in AeroCom Phase 2 and IPCC AR5
Contact person:         Alf Kirkevåg (alf.kirkevag@met.no)
Authors:                Trond Iversen, Alf Kirkevåg, Øyvind Seland 
Storage locations:      NorStore (/norstore_osl/projects/NS2345K/noresm/cases/aerocomA2noresm_r128/) 
                        MET Norway (/vol/fou/atmos/alfk/aerocomA2ny/aerocom.CAM4-Oslo.AEROCOM_A2.CTRL/)
                        aerocom-users (/metno/aerocom/users/aerocom1/CAM4-Oslo-Vcmip5.A2.CTRL) 
Storage space:          289 Gb at NorStore, 6 Gb at MET Norway  
Projects:               NorClim/EarthClim and AeroCom
Publications:           [[http://www.geosci-model-dev.net/6/207/2013/gmd-6-207-2013.html|Kirkevåg et al. (2013)]], [[http://www.atmos-chem-phys.net/13/1853/2013/acp-13-1853-2013.html|Myhre et al. (2013)]], [[http://www.atmos-chem-phys.net/13/2423/2013/acp-13-2423-2013.html|Samset et al. (2013)]], [[http://www.atmos-chem-phys.net/14/2399/2014/acp-14-2399-2014.html|Jiao et al. (2014)]], [[http://www.atmos-chem-phys-discuss.net/14/6027/2014/acpd-14-6027-2014.html|Tsigaridis et al. (2014)]] 

Simulation name(s):     aerocomA2noresm_r128_X, where X = 2006 (AeroCom-A2.CTRL), 1850 (AeroCom-A2.PRE), ZERO (AeroCom-A2.ZERO), 2006preSO4 (with 1850 SO4 emissions), 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)
Revision Number:        r128  
Type of run:            Initial
Simulation period:      5 years
Spin-up period:         2 years
Ensemble runs:          --    
Resolution:             f19_g16 = 1.8x2.5
Emission year(s)        2006 (AeroCom-A2.CTRL), 1850 (AeroCom-A2.PRE), no emissions (AeroCom-A2.ZERO). For X = 2006preY all emissions are for year 2006, except for using 1850 emissions for SO2 and SO4 in the Y = SO4 experiment, and similarly (i.e. 1850 emissions) for fossil fuel BC / OC for Y = ffBC / ffOC, and biomass BC and OC for Y = bbBCOC.     
Emissions:              IPCC AR5 for 1850, AeroCom Phase II for 2006, see references in Kirkevåg et al. (2013) 
Frequency for output 
         atmosphere:    Monthly

Active/changing forcing agents:  Nat / Ant / GHG / SA (=SD+DI), etc., see
http://cmip-pcmdi.llnl.gov/cmip5/docs/cmip5_data_reference_Appendix1-2.pdf

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) 
Rsnow    500 um      grain size of cold old (not new?) snow overlaying sea-ice (250 um in CICE4)