Seaice-only verification experiment in idealized periodic channel ----------------------------------------------------------------- 1) main forward experiment (code, input) Re-entrant zonally periodic channel (80x42 grid points) with just level (Nr=1) uniform resolution (5.km, 10m), solid Southern boundary with triangular shape coastline ("bathy_3c.bin") Use seaice (dynamics & thermodynamics from pkg/thsice) with EXF (see data.pkg) with initial ice thickness of 0.2 m (but no snow) (thSIceThick_InitFile='const+20.bin', in "input/data.ice") Initial seaice concentration is 100 % everywhere (thSIceFract_InitFile='const100.bin', in "input/data.ice") and seaice is initially at rest. At runtime turn off time-stepping in 'data', PARM01, using: momStepping = .FALSE., saltStepping = .FALSE., tempAdvection=.FALSE., And just keep surface temp relaxation (tauRelax = 1 month) toward fixed SST: in data.exf : > climsstperiod = 0.0, > climsstTauRelax = 2592000., > climsstfile = 'tocn.bin', Forcing: None of the forcing vary with time; Most of the input files have been generated using matlab script "input/gendata.m". SST relaxation field is uniform in X, parabolic function of Y with maximum close to Southern boundary. Atmospheric air temp is uniform in Y, and only vary with X (~sin(2.pi.x/Lx)) with an amplitude of 4.K ('tair_4x.bin'); Uses constant Relative Humidity (70%, file 'qa70_4x.bin') constant and uniform downward shortwave (100.W/m2, 'dsw_100.bin'), downward longwave (250.W/m^2, 'dlw_250.bin'), zonal wind (10.m/s, 'windx.bin'), no meridional wind, no precip. Ocean surface currents comes from a 3 levels ocean-only run (without seaice) using the same wind forcing (uVel_3c0.bin, vVel_3c0.bin) (matlab script: "input/getdata.m") Two matlab scripts ("input/grph_res.m" and "input/grph_diag.m") are provided to make some basic plots (snap-shot and time-averaged diagnostics). 2) other (secondary) experiments (using the same executable) a) seaice-dynamics only with LSR solver (input.dyn_lsr/) use same forcing as main forward experiment, ( link input files from "input.dyn_lsr/" dir 1rst, then from "input/" dir ) but does not use at all pkg/thsice (advect pkg/seaice properties using pkg/seaice advection S/R.); turn off seaice thermodynamics (usePW79thermodynamics=.FALSE., in input.dyn_lsr/data.seaice). b) seaice-dynamics only with JNFK solver (input.dyn_jfnk/) use same forcing as main forward experiment, ( link input files from "input.dyn_jfnk/" dir 1rst, then from "input/" dir ) turn off seaice thermodynamics (thSIce_skipThermo=.TRUE., in file "input.dyn_jfnk/data.ice") and advect pkg/thsice properties using pkg/thsice advection S/R. c) seaice-thermodynamics only from pkg/seaice (input.thermo/) use same forcing as main forward experiment, ( link input files from "input.thermo/" dir 1rst, then from "input/" dir ) Except a different bathymetry (no triangular shape coast line in the South, just a simple channel of constant width, with constant and uniform zonal current of 0.2 m/s): in "input.thermo/data": bathyFile = 'channel.bin', uVelInitFile = 'const+20.bin', vVelInitFile = 'const_00.bin', And use different initial seaice concentration from the main forward experiment: (in "input.thermo/data.seaice", AreaFile = 'ice0_area.bin', and HeffFile = 'ice0_heff.bin',) 100 % everywhere except in the 1rst and last 2 rows: 0., 10.% in the South and 1.%, 0. in the North: Turn off seaice dynamics (SEAICEuseDYNAMICS =.FALSE., in "input.thermo/data.seaice") which implies no advection (zero ice velocity). d) seaice-thermodynamics only from pkg/thsice (input.thsice/) use same forcing as main forward experiment, ( link input files from "input.thsice/" dir 1rst, then from "input/" dir ) Except for bathymetry and initial seaice concentration which are identical to the one used in input.thermo/ : (thSIceFract_InitFile='ice0_area.bin', in "input.thsice/data.ice") No seaice dynamics and no seaice advection, so that none of pkg/seaice S/R are used (useSEAICE = .TRUE., commented out in "input.thsice/data.pkg"), 3) main adjoint experiment (code_ad, input_ad) Use similar forward set-up as "input.thermo/". (to be completed ...)