2025-09-05 09:42:21 +02:00

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!! NEMO/OCE : Reference namelist_ref !!
!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
!! NEMO/OCE : 1 - Domain & run manager (namrun, namcfg, namdom, namzgr, namzgr_sco )
!! 2 - diagnostics (namnc4)
!! 3 - miscellaneous (nammpp, namctl)
!!>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
!-----------------------------------------------------------------------
&namrun ! parameters of the run
!-----------------------------------------------------------------------
cn_exp = "ORCA2" ! experience name
nn_it000 = 1 ! first time step
nn_itend = 5840 ! last time step (std 5840)
nn_date0 = 010101 ! date at nit_0000 (format yyyymmdd) used if ln_rstart=F or (ln_rstart=T and nn_rstctl=0 or 1)
nn_time0 = 0 ! initial time of day in hhmm
nn_leapy = 0 ! Leap year calendar (1) or not (0)
ln_mskland = .false. ! mask land points in NetCDF outputs (costly: + ~15%)
ln_clobber = .true. ! clobber (overwrite) an existing file
nn_chunksz = 0 ! chunksize (bytes) for NetCDF file (works only with iom_nf90 routines)
ln_cfmeta = .false. ! output additional data to netCDF files required for compliance with the CF metadata standard
ln_iscpl = .false. ! cavity evolution forcing or coupling to ice sheet model
/
!-----------------------------------------------------------------------
&namdom ! space and time domain (bathymetry, mesh, timestep)
!-----------------------------------------------------------------------
ln_read_cfg = .false. ! Read from a domain_cfg file
nn_bathy = 1 ! = 0 compute analyticaly
! = 1 read the bathymetry file
! = 2 compute from external bathymetry
! = 3 compute from parent (if "key_agrif")
nn_interp = 1 ! type of interpolation (nn_bathy =2)
cn_domcfg = ' ' ! Name of the domain_cfg input file
cn_fcoord = 'coordinates.nc' ! external coordinates file (jphgr_msh = 0)
cn_topo = 'bathy_meter.nc ' ! external topo file (nn_bathy =1/2)
cn_topolvl = 'bathy_level.nc ' ! external topo file (nn_bathy =1)
cn_fisfd = 'isf_draft_meter.nc' ! external isf draft (nn_bathy =1 and ln_isfcav = .true.)
cn_bath = 'Bathymetry' ! topo name in file (nn_bathy =1/2)
cn_bathlvl = 'Bathy_level' ! lvl name in file (nn_bathy =1)
cn_visfd = 'isf_draft' ! isf draft variable (nn_bathy =1 and ln_isfcav = .true.)
cn_lon = 'nav_lon' ! lon name in file (nn_bathy =2)
cn_lat = 'nav_lat' ! lat name in file (nn_bathy =2)
rn_scale = 1. ! multiplicative factor to account for possibly negative input bathymetry (agrif only)
rn_bathy = 0. ! value of the bathymetry. if (=0) bottom flat at jpkm1
nn_msh = 0 ! create (=1) a mesh file or not (=0)
rn_hmin = -3. ! min depth of the ocean (>0) or min number of ocean level (<0)
rn_e3zps_min= 20. ! partial step thickness is set larger than the minimum of
rn_e3zps_rat= 0.1 ! rn_e3zps_min and rn_e3zps_rat*e3t, with 0<rn_e3zps_rat<1
!
rn_rdt = 5760. ! time step for the dynamics (and tracer if nn_acc=0)
rn_atfp = 0.1 ! asselin time filter parameter
ln_crs = .false. ! Logical switch for coarsening module
jphgr_msh = 0 ! type of horizontal mesh
! = 0 curvilinear coordinate on the sphere read in coordinate.nc
! = 1 geographical mesh on the sphere with regular grid-spacing
! = 2 f-plane with regular grid-spacing
! = 3 beta-plane with regular grid-spacing
! = 4 Mercator grid with T/U point at the equator
ppglam0 = 0.0 ! longitude of first raw and column T-point (jphgr_msh = 1)
ppgphi0 = -35.0 ! latitude of first raw and column T-point (jphgr_msh = 1)
ppe1_deg = 1.0 ! zonal grid-spacing (degrees)
ppe2_deg = 0.5 ! meridional grid-spacing (degrees)
ppe1_m = 5000.0 ! zonal grid-spacing (degrees)
ppe2_m = 5000.0 ! meridional grid-spacing (degrees)
ppsur = -4762.96143546300 ! ORCA r4, r2 and r05 coefficients
ppa0 = 255.58049070440 ! (default coefficients)
ppa1 = 245.58132232490 !
ppkth = 21.43336197938 !
ppacr = 3.0 !
ppdzmin = 10. ! Minimum vertical spacing
pphmax = 5000. ! Maximum depth
ldbletanh = .TRUE. ! Use/do not use double tanf function for vertical coordinates
ppa2 = 100.760928500000 ! Double tanh function parameters
ppkth2 = 48.029893720000 !
ppacr2 = 13.000000000000 !
/
!-----------------------------------------------------------------------
&namcfg ! parameters of the configuration
!-----------------------------------------------------------------------
!
ln_e3_dep = .true. ! =T : e3=dk[depth] in discret sens.
! ! ===>>> will become the only possibility in v4.0
! ! =F : e3 analytical derivative of depth function
! ! only there for backward compatibility test with v3.6
! !
! ! if ln_e3_dep = T
ln_dept_mid = .false. ! =T : set T points in the middle of cells
! ! =F : e3 analytical depth function
! !
cp_cfg = "orca" ! name of the configuration
jp_cfg = 2 ! resolution of the configuration
jpidta = 180 ! 1st lateral dimension ( >= jpi )
jpjdta = 148 ! 2nd " " ( >= jpj )
jpkdta = 31 ! number of levels ( >= jpk )
Ni0glo = 180 ! 1st dimension of global domain --> i =jpidta
Nj0glo = 148 ! 2nd - - --> j =jpjdta
jpkglo = 31
jperio = 4 ! lateral cond. type (between 0 and 6)
ln_use_jattr = .false. ! use (T) the file attribute: open_ocean_jstart, if present
! in netcdf input files, as the start j-row for reading
ln_domclo = .false. ! computation of closed sea masks (see namclo)
/
!-----------------------------------------------------------------------
&namzgr ! vertical coordinate (default: NO selection)
!-----------------------------------------------------------------------
ln_zco = .false. ! z-coordinate - full steps
ln_zps = .false. ! z-coordinate - partial steps
ln_sco = .false. ! s- or hybrid z-s-coordinate
ln_isfcav = .false. ! ice shelf cavity (T: see namzgr_isf)
/
!-----------------------------------------------------------------------
&namzgr_isf ! isf cavity geometry definition (default: OFF)
!-----------------------------------------------------------------------
rn_isfdep_min = 10. ! minimum isf draft tickness (if lower, isf draft set to this value)
rn_glhw_min = 1.e-3 ! minimum water column thickness to define the grounding line
rn_isfhw_min = 10 ! minimum water column thickness in the cavity once the grounding line defined.
ln_isfchannel = .false. ! remove channel (based on 2d mask build from isfdraft-bathy)
ln_isfconnect = .false. ! force connection under the ice shelf (based on 2d mask build from isfdraft-bathy)
nn_kisfmax = 999 ! limiter in level on the previous condition. (if change larger than this number, get back to value before we enforce the connection)
rn_zisfmax = 7000. ! limiter in m on the previous condition. (if change larger than this number, get back to value before we enforce the connection)
ln_isfcheminey = .false. ! close cheminey
ln_isfsubgl = .false. ! remove subglacial lake created by the remapping process
rn_isfsubgllon = 0.0 ! longitude of the seed to determine the open ocean
rn_isfsubgllat = 0.0 ! latitude of the seed to determine the open ocean
/
!-----------------------------------------------------------------------
&namzgr_sco ! s-coordinate or hybrid z-s-coordinate (default: OFF)
!-----------------------------------------------------------------------
ln_s_sh94 = .false. ! Song & Haidvogel 1994 hybrid S-sigma (T)|
ln_s_sf12 = .false. ! Siddorn & Furner 2012 hybrid S-z-sigma (T)| if both are false the NEMO tanh stretching is applied
ln_sigcrit = .false. ! use sigma coordinates below critical depth (T) or Z coordinates (F) for Siddorn & Furner stretch
! stretching coefficients for all functions
rn_sbot_min = 10.0 ! minimum depth of s-bottom surface (>0) (m)
rn_sbot_max = 7000.0 ! maximum depth of s-bottom surface (= ocean depth) (>0) (m)
rn_hc = 150.0 ! critical depth for transition to stretched coordinates
!!!!!!! Envelop bathymetry
rn_rmax = 0.3 ! maximum cut-off r-value allowed (0<r_max<1)
!!!!!!! SH94 stretching coefficients (ln_s_sh94 = .true.)
rn_theta = 6.0 ! surface control parameter (0<=theta<=20)
rn_bb = 0.8 ! stretching with SH94 s-sigma
!!!!!!! SF12 stretching coefficient (ln_s_sf12 = .true.)
rn_alpha = 4.4 ! stretching with SF12 s-sigma
rn_efold = 0.0 ! efold length scale for transition to stretched coord
rn_zs = 1.0 ! depth of surface grid box
! bottom cell depth (Zb) is a linear function of water depth Zb = H*a + b
rn_zb_a = 0.024 ! bathymetry scaling factor for calculating Zb
rn_zb_b = -0.2 ! offset for calculating Zb
!!!!!!!! Other stretching (not SH94 or SF12) [also uses rn_theta above]
rn_thetb = 1.0 ! bottom control parameter (0<=thetb<= 1)
/
!-----------------------------------------------------------------------
&namclo ! (closed sea : need ln_domclo = .true. in namcfg) (default: OFF)
!-----------------------------------------------------------------------
rn_lon_opnsea = 0.0 ! longitude seed of open ocean
rn_lat_opnsea = 0.0 ! latitude seed of open ocean
nn_closea = 8 ! number of closed seas ( = 0; only the open_sea mask will be computed)
!
! name ! lon_src ! lat_src ! lon_trg ! lat_trg ! river mouth area ! correction scheme ! radius trg ! id trg
! ! (degree)! (degree)! (degree)! (degree)! local/coast/global ! (glo/rnf/emp) ! (m) !
! North American lakes
sn_lake(1) = 'superior' , -86.57 , 47.30 , -66.49 , 50.45 , 'local' , 'rnf' , 550000.0 , 2
sn_lake(2) = 'michigan' , -87.06 , 42.74 , -66.49 , 50.45 , 'local' , 'rnf' , 550000.0 , 2
sn_lake(3) = 'huron' , -82.51 , 44.74 , -66.49 , 50.45 , 'local' , 'rnf' , 550000.0 , 2
sn_lake(4) = 'erie' , -81.13 , 42.25 , -66.49 , 50.45 , 'local' , 'rnf' , 550000.0 , 2
sn_lake(5) = 'ontario' , -77.72 , 43.62 , -66.49 , 50.45 , 'local' , 'rnf' , 550000.0 , 2
! African Lake
sn_lake(6) = 'victoria' , 32.93 , -1.08 , 30.44 , 31.37 , 'coast' , 'emp' , 100000.0 , 3
! Asian Lakes
sn_lake(7) = 'caspian' , 50.0 , 44.0 , 0.0 , 0.0 , 'global' , 'glo' , 0.0 , 1
sn_lake(8) = 'aral' , 60.0 , 45.0 , 0.0 , 0.0 , 'global' , 'glo' , 0.0 , 1
/
!-----------------------------------------------------------------------
&namlbc ! lateral momentum boundary condition (default: NO selection)
!-----------------------------------------------------------------------
! ! free slip ! partial slip ! no slip ! strong slip
rn_shlat = 0 ! shlat = 0 ! 0 < shlat < 2 ! shlat = 2 ! 2 < shlat
ln_vorlat = .false. ! consistency of vorticity boundary condition with analytical Eqs.
/
!-----------------------------------------------------------------------
&namagrif ! AGRIF zoom ("key_agrif")
!-----------------------------------------------------------------------
ln_remove_closedseas = .true. ! Fill lakes inside zoom
ln_vert_remap = .false. ! volume conserving update
npt_connect = 2
npt_copy = 4
/
!-----------------------------------------------------------------------
&nammpp ! Massively Parallel Processing ("key_mpp_mpi")
!-----------------------------------------------------------------------
ln_listonly = .false. ! do nothing else than listing the best domain decompositions (with land domains suppression)
! ! if T: the largest number of cores tested is defined by max(mppsize, jpni*jpnj)
ln_nnogather = .true. ! activate code to avoid mpi_allgather use at the northfold
jpni = 0 ! number of processors following i (set automatically if < 1), see also ln_listonly = T
jpnj = 0 ! number of processors following j (set automatically if < 1), see also ln_listonly = T
nn_hls = 1 ! halo width (applies to both rows and columns)
/
!-----------------------------------------------------------------------
&namctl ! Control prints (default: OFF)
!-----------------------------------------------------------------------
sn_cfctl%l_runstat = .FALSE. ! switches and which areas produce reports with the proc integer settings.
sn_cfctl%l_trcstat = .FALSE. ! The default settings for the proc integers should ensure
sn_cfctl%l_oceout = .FALSE. ! that all areas report.
sn_cfctl%l_layout = .FALSE. !
sn_cfctl%l_prtctl = .FALSE. !
sn_cfctl%l_prttrc = .FALSE. !
sn_cfctl%l_oasout = .FALSE. !
sn_cfctl%procmin = 0 ! Minimum area number for reporting [default:0]
sn_cfctl%procmax = 1000000 ! Maximum area number for reporting [default:1000000]
sn_cfctl%procincr = 1 ! Increment for optional subsetting of areas [default:1]
sn_cfctl%ptimincr = 1 ! Timestep increment for writing time step progress info
nn_ictls = 0 ! start i indice of control sum (use to compare mono versus
nn_ictle = 0 ! end i indice of control sum multi processor runs
nn_jctls = 0 ! start j indice of control over a subdomain)
nn_jctle = 0 ! end j indice of control
nn_isplt = 1 ! number of processors in i-direction
nn_jsplt = 1 ! number of processors in j-direction
ln_timing = .false. ! timing by routine write out in timing.output file
ln_diacfl = .false. ! CFL diagnostics write out in cfl_diagnostics.ascii
/