eORCA025.L121-OPM016¶
Summary¶
Namelist¶
Only the change compare to the reference (eORCA025.L121-OPM006) a mentioned here:
namelist_oce¶
namtsd¶
Because of the issue (Input file) in reference simulation (eORCA025.L121-OPM006), input file hase been updated.
!-----------------------------------------------------------------------
&namtsd_drk ! Temperature & Salinity Data (init/dmp) (default: OFF)
! ! if key_drakkar, **only** namtsd_drk is read
!-----------------------------------------------------------------------
ln_tsd_init = .true. ! Initialisation of ocean T & S with T &S input data (T) or not (F)
ln_tsd_dmp = .false. ! damping of ocean T & S toward T &S input data (T) or not (F)
cn_dir = './' ! root directory for the location of the temperature and salinity file
!___________!_____________________________________!___________________!___________!_____________!________!___________!_____________!__________!_______________!
! ! file name ! frequency (hours) ! variable ! time interp.! clim ! 'yearly'/ ! weights ! rotation ! land/sea mask !
! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! filename ! pairing ! filename !
! data used for initial condition (istate)
sn_tem_ini = 'eORCA025.L121_WOA2018_c3.0_d1.0_v19812010.5.1', -1., 'votemper', .true. , .true. , 'yearly' , '' , ' ' , ' '
sn_sal_ini = 'eORCA025.L121_WOA2018_c3.0_d1.0_v19812010.5.1', -1., 'vosaline', .true. , .true. , 'yearly' , '' , ' ' , ' '
! data used for damping ( tradmp)
sn_tem_dmp = 'eORCA025.L121_Gouretski2004_c3.0_d1.0_v0.0', -1., 'votemper', .true. , .true., 'yearly' , '' , ' ' , ' '
sn_sal_dmp = 'eORCA025.L121_Gouretski2004_c3.0_d1.0_v0.0', -1., 'vosaline', .true. , .true., 'yearly' , '' , ' ' , ' '
!
/
namsbc_ssr¶
Because of the issue (Input file) in reference simulation (eORCA025.L121-OPM006), input file has been updated.
!-----------------------------------------------------------------------
&namsbc_ssr ! surface boundary condition : sea surface restoring (ln_ssr =T)
!-----------------------------------------------------------------------
nn_sstr = 0 ! add a retroaction term to the surface heat flux (=1) or not (=0)
rn_dqdt = -40. ! magnitude of the retroaction on temperature [W/m2/K]
nn_sssr = 2 ! add a damping term to the surface freshwater flux (=2)
! ! or to SSS only (=1) or no damping term (=0)
rn_deds = -166.67 ! magnitude of the damping on salinity [mm/day]
ln_sssr_bnd = .true. ! flag to bound erp term (associated with nn_sssr=2)
rn_sssr_bnd = 4.e0 ! ABS(Max/Min) value of the damping erp term [mm/day]
nn_sssr_ice = 1 ! control of sea surface restoring under sea-ice
! 0 = no restoration under ice : * (1-icefrac)
! 1 = restoration everywhere
! >1 = enhanced restoration under ice : 1+(nn_icedmp-1)*icefrac
cn_dir = './' ! root directory for the SST/SSS data location
!___________!_________________________!___________________!___________!_____________!________!___________!___________!__________!_______________!
! ! file name ! frequency (hours) ! variable ! time interp.! clim ! 'yearly'/ ! weights e ! rotation ! land/sea mask !
! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! filename ! pairing ! filename !
sn_sst = 'NOT_USED.nc' , 24. , 'sst' , .false. , .false., 'yearly' , '' , '' , ''
sn_sss = 'eORCA025_sss_WOA2018_c3.0_v19812010.5.1' , -1. , 'sosaline' , .true. , .true. , 'yearly' , '' , '' , ''
/
namtra_ldf¶
We also revert UKMO change on diffusion to get back to historical values (300m2/s)
!-----------------------------------------------------------------------
&namtra_ldf ! lateral diffusion scheme for tracers (default: NO selection)
!-----------------------------------------------------------------------
! ! Operator type:
ln_traldf_OFF = .false. ! No explicit diffusion
ln_traldf_lap = .true. ! laplacian operator
ln_traldf_blp = .false. ! bilaplacian operator
!
! ! Direction of action:
ln_traldf_lev = .false. ! iso-level
ln_traldf_hor = .false. ! horizontal (geopotential)
ln_traldf_iso = .true. ! iso-neutral (standard operator)
ln_traldf_triad = .false. ! iso-neutral (triad operator)
!
! ! iso-neutral options:
ln_traldf_msc = .false. ! Method of Stabilizing Correction (both operators)
rn_slpmax = 0.01 ! slope limit (both operators)
ln_triad_iso = .false. ! pure horizontal mixing in ML (triad only)
rn_sw_triad = 1 ! =1 switching triad ; =0 all 4 triads used (triad only)
ln_botmix_triad = .false. ! lateral mixing on bottom (triad only)
!
! ! Coefficients:
nn_aht_ijk_t = 20 ! space/time variation of eddy coefficient:
! ! =-20 (=-30) read in eddy_diffusivity_2D.nc (..._3D.nc) file
! ! = 0 constant
! ! = 10 F(k) =ldf_c1d
! ! = 20 F(i,j) =ldf_c2d
! ! = 21 F(i,j,t) =Treguier et al. JPO 1997 formulation
! ! = 30 F(i,j,k) =ldf_c2d * ldf_c1d
! ! = 31 F(i,j,k,t)=F(local velocity and grid-spacing)
! ! time invariant coefficients: aht0 = 1/2 Ud*Ld (lap case)
! ! or = 1/12 Ud*Ld^3 (blp case)
rn_Ud = 0.022 ! lateral diffusive velocity [m/s] (nn_aht_ijk_t= 0, 10, 20, 30)
rn_Ld = 200.e+3 ! lateral diffusive length [m] (nn_aht_ijk_t= 0, 10)
/
namtra_eiv¶
Based on UKMO test and Julie D. discussion we switch one GM (300m2/s)
!-----------------------------------------------------------------------
&namtra_eiv ! eddy induced velocity param. (default: OFF)
!-----------------------------------------------------------------------
ln_ldfeiv = .true. ! use eddy induced velocity parameterization
!
! ! Coefficients:
nn_aei_ijk_t = 21 ! space/time variation of eddy coefficient:
! ! =-20 (=-30) read in eddy_induced_velocity_2D.nc (..._3D.nc) file
! ! = 0 constant
! ! = 10 F(k) =ldf_c1d
! ! = 20 F(i,j) =ldf_c2d
! ! = 21 F(i,j,t) =Treguier et al. JPO 1997 formulation
! ! = 30 F(i,j,k) =ldf_c2d * ldf_c1d
! ! time invariant coefficients: aei0 = 1/2 Ue*Le
rn_Ue = 0.06 ! lateral diffusive velocity [m/s] (nn_aei_ijk_t= 0, 10, 20, 30)
rn_Le = 10.e+3 ! lateral diffusive length [m] (nn_aei_ijk_t= 0, 10)
!
ln_ldfeiv_dia =.false. ! diagnose eiv stream function and velocities
nn_ldfeiv_shape = 2 ! shape of bounding coefficient (nn_aei_ijk_t= 21 only)
/
namtra_dmp_drk¶
this config use in addition of the hard coded point a mask for AABW dmp.
change in the ts data used for the restoring. It now use: eORCA025.L121_Gouretski2004_c3.0_d1.0_v0.0.nc
!-----------------------------------------------------------------------
&namtsd_drk ! Temperature & Salinity Data (init/dmp) (default: OFF)
! ! if key_drakkar, **only** namtsd_drk is read
!-----------------------------------------------------------------------
ln_tsd_init = .true. ! Initialisation of ocean T & S with T &S input data (T) or not (F)
ln_tsd_dmp = .true. ! damping of ocean T & S toward T &S input data (T) or not (F)
cn_dir = './' ! root directory for the location of the temperature and salinity file
!___________!_____________________________________!___________________!___________!_____________!________!___________!_____________!__________!_______________!
! ! file name ! frequency (hours) ! variable ! time interp.! clim ! 'yearly'/ ! weights ! rotation ! land/sea mask !
! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! filename ! pairing ! filename !
! data used for initial condition (istate)
sn_tem_ini = 'eORCA025.L121_WOA2018_c3.0_d1.0_v19812010.5.1', -1. , 'votemper', .true. , .true. , 'yearly' , '' , ' ' , ' '
sn_sal_ini = 'eORCA025.L121_WOA2018_c3.0_d1.0_v19812010.5.1', -1. , 'vosaline', .true. , .true. , 'yearly' , '' , ' ' , ' '
! data used for damping ( tradmp)
sn_tem_dmp = 'eORCA025.L121_Gouretski2004_c3.0_d1.0_v0.0', -12., 'ct', .false. , .true., 'yearly' , '' , ' ' , ' '
sn_sal_dmp = 'eORCA025.L121_Gouretski2004_c3.0_d1.0_v0.0', -12., 'sa', .false. , .true., 'yearly' , '' , ' ' , ' '
!
/
!-----------------------------------------------------------------------
&namtra_dmp_drk ! tracer: T & S newtonian damping (default: OFF)
!-----------------------------------------------------------------------
nn_hdmp = -2 ! -2 = Drakkar customisation ( use dtacof in tradmp.F90 )
! any other value : Nemo standard code
nn_file = 1 ! create a damping.coeff NetCDF file (=1) or not (=0)
! The output file can then be used as input resto file (cn_resto)
ln_dmpmask = .true. ! Read dmp_mask.nc file when T (between 0 and 1 )
rn_timsk = 730. ! Time scale used for dmp_mask
cn_dir = './' ! directtory wher to find damping mask
!___________!____________!___________________!___________!_____________!________!___________!___________!__________!_______________!
! ! file name ! frequency (hours) ! variable ! time interp.! clim ! 'yearly'/ ! weights e ! rotation ! land/sea mask !
! ! ! (if <0 months) ! name ! (logical) ! (T/F) ! 'monthly' ! filename ! pairing ! filename !
sn_dmp = 'eORCA025.L121_dmpmask_b0.2_c0.3_d1.0_v0.0' , -12. , 'wdmp' , .false. , .true. , 'yearly' , '' , '' , ''
/
Input files¶
Only the file changed between the reference (Input file) and this simulation are described.
initial condition¶
variables: votemper, vosaline
frequency: monthly
sea surface salinity¶
filename: eORCA025_sss_WOA2018_c3.0_v19812010.5.1.nc
variable: sosaline
frequency: monthly
damping mask¶
damping data¶
Code¶
Only changes compare to reference are presented here.
Compilation¶
XIOS: - XIOS/2.5_r1903_intelmpi-5.1.3.258
Module loaded: - gcc/8.3.0 - intel/19.4 - intelmpi/5.1.3.258 - netcdf-fortran/4.4.4-intel-19.0.4-intelmpi-2019.4.243 - netcdf/4.6.3-intel-19.0.4-intelmpi-2019.4.243 - hdf5/1.10.5-intel-19.0.4-intelmpi-2019.4.243
comments on this choice: - Netcdf is now available on Occigen with the latest intel compiler (2019.4.243) - we recompile NEMO and XIOS with the latest available compiler
Monitoring¶
Global indicators¶
On these plot you can find a time series of:
ACC transport
AMOC at rapid array
AMHT at rapid array
Net global heat fluxes
mean sst in the southern ocean (see box in the map)
mean sst in the North West Corner (see box in the map)
sea ice extent (arctic/ant in summer/winter)
Regional indicators¶
On these plot, you can find time series of:
ACC transport
Maximum of the Weddell and Ross Gyre (box where the max compute show in the map)
Mean bottom salinity over the main dense water formation hot spot (West Ross and West FRIS)
Mean bottom temperature over East Ross and Amudsen sea to monitor CDW intrusion
Local indicators¶
These plots monitor the evolution of ice shelf melting and the corresponding shelf properties (ROSS, FRIS, PINE, GETZ)
Amundsen sea¶
These plot monitoring the evolution of temperature, salinity and ice shelf melt in Amundsen sea.
