Purpose of simulation: Model validation for Arctic PD conditions
Contact person: Alf Kirkevåg (alf.kirkevag@met.no)
Data owner: Alf Kirkevåg (alf.kirkevag@met.no)
Revision Number: r164
Ensemble runs: No
Production computer used: Cray XT in Bergen (hexagon)
Production date: October 2013
Storage locations: NorStore (/norstore_osl/projects/NS2345K/noresm/cases/NF2006to2008r164/)
MET Norway (local disk)
Storage space: 9 Gb at NorStore, 25 Gb at MET Norway
Projects: EarthClim/ACCESS
Publications: Glantz et al. (2014)
Papers in preparation:
Simulation name(s): NF2006to2008r164
Compset name used: NF_2006-2008_AER_AMIP_OBS
Model type: Stand-alone cam (atmosphere) default with prescribed ocn/ice (ocean and sea-ice)
Type of run: Branch
Simulation period: 3 years
Spin-up period: 0 years in the branch run itself, but continued from 1979-2005
Initialisation: Data from the end of a 1979-2005 AMIP simulations
Resolution: f19_f19 = 1.8×2.5
Emission year(s): 2006 - 2008 (aerosols and precursors)
Emission inventories RCP8.5 from IPCC AR5
Greenhouse gases: Prescribed concentrations
Frequency for output: Monthly
Active/changing forcing agents: In principle, direct and indirect (1. & 2.) effects by anthropogenic SO4, POM and BC, but aerosols were run offline (CAM4-Oslo aerosols do not affect the model meteorology, only prescribed aerosols and CDNC from CAM4 )
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)