wiki:Doc/Models/NEMO

Version 7 (modified by cetlod, 8 years ago) (diff)

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The NEMO model

Table of contents

  1. 1. opa9.card
    1. 1.1. Model version
    2. 1.2. Simulations
    3. 1.3. Atmospheric forcings
    4. 1.4. Initial states and boundary conditions
  2. 2. pisces.card
    1. 2.1. Initial states and boundary conditions

A few specificities of the forced NEMO configurations associated with their use with libIGCM are detailed in this section.
Further information on these configurations (description, setup, documentation) is available on the official NEMO website: ​http://www.nemo-ocean.eu

To access this information you must create an account in the NEMO users' base and login with it to have detailed information about NEMO.

1. opa9.card

1.1. Model version

The choice of forcings used for the simulations depends on the model version. The available forcings correspond to NEMO versions v3_2, v3_3, v3_4. 

OPA_version=v3.6_stable
R_FORCING=${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}

1.2. Simulations

Two kinds of simulations with forced NEMO can be performed:

  • a climatological simulation
  • an interannual simulation

1.3. Atmospheric forcings

For forced ocean simulations, you need the atmospheric forcings for the :

  • wind stress - zonal and meridional
  • air temperature
  • solar and non solar fluxes (shortwave and longwave)
  • relative humidity
  • precipitations (solid: snow and liquid: rain)

To specify in the Interannual section 

[InitialStateFiles]
List=   (${SUBMIT_DIR}/PARAM/EMPave_old.dat, EMPave_old.dat)


[BoundaryFiles]
List=   (${opa9_UserChoices_R_FORCING}/u_10.15JUNE2009_fill.nc            , u_10.nc), \
        (${opa9_UserChoices_R_FORCING}/v_10.15JUNE2009_fill.nc            , v_10.nc), \
        (${opa9_UserChoices_R_FORCING}/t_10.15JUNE2009_fill.nc            , t_10.nc), \
        (${opa9_UserChoices_R_FORCING}/q_10.15JUNE2009_fill.nc            , q_10.nc), \
        (${opa9_UserChoices_R_FORCING}/ncar_rad.15JUNE2009_fill.nc        , radsw.nc), \
        (${opa9_UserChoices_R_FORCING}/ncar_rad.15JUNE2009_fill.nc        , radlw.nc), \
        (${opa9_UserChoices_R_FORCING}/ncar_precip.15JUNE2009_fill.nc     , precip.nc), \
        (${opa9_UserChoices_R_FORCING}/ncar_precip.15JUNE2009_fill.nc     , snow.nc), \
        (${opa9_UserChoices_R_FORCING}/weights_coreII_2_eorca1_bilinear.nc, weights_bilinear.nc), \
        (${opa9_UserChoices_R_FORCING}/weights_coreII_2_eorca1_bicubic.nc , weights_bicubic.nc)

1.4. Initial states and boundary conditions

The initial states and the boundary conditions are listed in the Boundary Files section
All those files are described on the official NEMO website: ​http://www.nemo-ocean.eu/Using-NEMO/Configurations/ORCA2_LIM, section Configuration Inputs 

ListNonDel= (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/ahmcoef.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/bathy_meter.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/coordinates.nc, . ), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/conservative_temperature_WOA13_decav_Reg1L75_clim.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/absolute_salinity_WOA13_decav_Reg1L75_clim.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/sali_ref_clim_monthly.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/sss_absolute_salinity_WOA13_decav_Reg1L75_clim.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/Goutorbe_ghflux.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/runoff-icb_DaiTrenberth_Depoorter_eORCA1_JD.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/subbasins.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/merged_ESACCI_BIOMER4V1R1_CHL_REG05.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/mixing_power_bot.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/mixing_power_pyc.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/mixing_power_cri.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/decay_scale_bot.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/decay_scale_cri.nc, .),\
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/weights_WOA13d1_2_eorca1_bilinear.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/weights_3D_WOA13d1_2_eorca1_bilinear.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/weights_reg05_2_eorca1_bilinear.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/weights_Goutorbe1_2_eorca1_bilinear.nc, .)

2. pisces.card

2.1. Initial states and boundary conditions

  • The initial states of a few passive tracers come from monthly (NO3, PO4, O2, Si) and annual (DIC, Alkalinity) climatologies or from simulation outputs (Iron, DOC). The other PISCES tracers are initialized by constant values in the model.
  • the files containing the external nutrient uptake are also listed below:
    • dust_INCA_eORCA_R1.nc : annual climatology of the nutrient uptake by dust
    • pmarge_etopo_eORCA_R1.nc : annual climatology of iron uptake by sediments
    • river_global_news_eORCA_R1.nc : annual climatology of nutrient uptake by rivers
    • ndeposition_Duce_eORCA_R1.nc : annual climatology of nitrogen deposit
    • Solubility_T62_Mahowald_eORCA_R1.nc : solubility of iron 
[BoundaryFiles]
List=   ()
ListNonDel= (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/DIC_GLODAP_annual_eORCA_R1.nc, .       ), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/Alkalini_GLODAP_annual_eORCA_R1.nc, . ) \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/O2_WOA2009_monthly_eORCA_R1.nc, . ), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/PO4_WOA2009_monthly_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/Si_WOA2009_monthly_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/DOC_PISCES_monthly_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/Fer_PISCES_monthly_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/NO3_WOA2009_monthly_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/dust_INCA_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/pmarge_etopo_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/river_global_news_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/ndeposition_Duce_eORCA_R1.nc, . ), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/par_fraction_gewex_clim90s00s_eORCA_R1.nc, .), \
            (${R_BC}/OCE/${config_UserChoices_TagName}/${opa9_UserChoices_OPA_version}/Solubility_T62_Mahowald_eORCA_R1.nc, .)