18 | | horizontal diffusion on momentum: the eddy viscosity coefficient depends on the geographical position. It is taken as 40000. m2/s, reduced in the equator regions (2000 m2/s) excepted near the western boundaries.[[BR]] |
19 | | isopycnal diffusion on tracers: the diffusion acts along the isopycnal surfaces (neutral surface) with a eddy diffusivity coefficient of 2000. m2/s.[[BR]] |
20 | | Eddy induced velocity parametrization with a coefficient that depends on the growth rate of baroclinic instabilities (it usually varies from 15 m2/s to 3000m2/s).[[BR]] |
21 | | lateral boundary conditions : zero fluxes of heat and salt and no-slip conditions are applied through lateral solid boundaries.[[BR]] |
22 | | bottom boundary condition : zero fluxes of heat and salt are applied through the ocean bottom. The Beckmann [19XX] simple bottom boundary layer parameterization is applied along continental slopes. A linear friction is applied on momentum.[[BR]] |
23 | | convection: the vertical eddy viscosity and diffusivity coefficients are increased to 1 m2/s in case of static instability.[[BR]] |
24 | | forcings: the ocean receives heat, freshwater, and momentum fluxes from the atmosphere and/or the sea-ice. The solar radiation penetrates the top meters of the ocean. The downward irradiance I(z) is formulated with two extinction coefficients [Paulson and Simpson, 1977], whose values correspond to a Type I water in Jerlov's classification (i.e the most transparent water)[[BR]] |
| 18 | -horizontal diffusion on momentum: the eddy viscosity coefficient depends on the geographical position. It is taken as 40000. m2/s, reduced in the equator regions (2000 m2/s) excepted near the western boundaries.[[BR]] |
| 19 | -isopycnal diffusion on tracers: the diffusion acts along the isopycnal surfaces (neutral surface) with a eddy diffusivity coefficient of 2000. m2/s.[[BR]] |
| 20 | -Eddy induced velocity parametrization with a coefficient that depends on the growth rate of baroclinic instabilities (it usually varies from 15 m2/s to 3000m2/s).[[BR]] |
| 21 | -lateral boundary conditions : zero fluxes of heat and salt and no-slip conditions are applied through lateral solid boundaries.[[BR]] |
| 22 | -bottom boundary condition : zero fluxes of heat and salt are applied through the ocean bottom. The Beckmann [19XX] simple bottom boundary layer parameterization is applied along continental slopes. A linear friction is applied on momentum.[[BR]] |
| 23 | -convection: the vertical eddy viscosity and diffusivity coefficients are increased to 1 m2/s in case of static instability.[[BR]] |
| 24 | -forcings: the ocean receives heat, freshwater, and momentum fluxes from the atmosphere and/or the sea-ice. The solar radiation penetrates the top meters of the ocean. The downward irradiance I(z) is formulated with two extinction coefficients [Paulson and Simpson, 1977], whose values correspond to a Type I water in Jerlov's classification (i.e the most transparent water)[[BR]] |
29 | | global ocean configuration,[[BR]] |
30 | | based on a tri-polar ORCA grid, with a 2° horizontal resolution,[[BR]] |
31 | | 31 vertical levels,[[BR]] |
32 | | forced with climatological surface fields,[[BR]] |
33 | | coupled to the sea-ice model LIM[[BR]] |
| 29 | -global ocean configuration,[[BR]] |
| 30 | -based on a tri-polar ORCA grid, with a 2° horizontal resolution,[[BR]] |
| 31 | -31 vertical levels,[[BR]] |
| 32 | -forced with climatological surface fields,[[BR]] |
| 33 | -coupled to the sea-ice model [ http://www.geosci-model-dev.net/8/2991/2015/ LIM ] [[BR]] |
| 34 | -coupled to TOP passive tracer transport module and [ http://www.geosci-model-dev.net/8/2465/2015/ PISCES biogeochemichal model ] .[[BR]] |
49 | | Using the ORCA2_LIM input files and namelist, AGRIF test configuration is ready to run[[BR]] |
| 50 | -Using the ORCA2_LIM input files and namelist, AGRIF test configuration is ready to run[[BR]] |
| 51 | |
| 52 | |
| 53 | '''Configuration Inputs''' |
| 54 | |
| 55 | Input files can be downloaded from the DODS server of IDRIS, (CAUTION different versions are available):[[BR]] |
| 56 | |
| 57 | ORCA2_LIM_nemo_v3.7.tar and INPUTS_PISCES_v3.6st.tar are dedicated to NEMO trunk version[[BR]] |
| 58 | ORCA2_LIM_nemo_v3.6.tar and INPUTS_PISCES_v3.6st.tar are dedicated to NEMO version nemo_v_3.6 It includes a README file with files description[[BR]] |
| 59 | ORCA2_LIM_nemo_v3.4.tar and INPUTS_PISCES_v3.4.tar are dedicated to NEMO version tagged nemo_v_3.5 and nemo_v3.4 It includes a README file with files description[[BR]] |
| 60 | ORCA2_LIM_nemo_v3.3.tar and INPUTS_PISCES_v3.tar are dedicated to NEMO version tagged nemo_v3.3 It includes a README file with files description[[BR]] |
| 61 | |
| 62 | |
| 63 | Brief description of files in ORCA2_LIM_nemo_v3.2.tar file :[[BR]] |
| 64 | |
| 65 | ahmcoef and ahmcoef.nc: 2D integer used to increase the horizontal eddy viscosity along western boundary in the equatorial strip 20°S-20°N[[BR]] |
| 66 | bathy_level.nc: the bathymetry in levels (Z-coordinates)[[BR]] |
| 67 | bathy_meter.nc and bathy_updated.nc : the bathymetry in meters (Partial-cells)[[BR]] |
| 68 | chlorophyll.nc : used for solar penetration scheme (traqsr) [[BR]] |
| 69 | coordinates.nc: scale factors e[123][tuvwf] and geographical glam[tuvwf] and gphi[tuvwf] location of each grid points T- U- V- W- and F-[[BR]] |
| 70 | data_1m_potential_temperature_nomask.nc: Levitus climatological potential temperature[[BR]] |
| 71 | data_1m_salinity_nomask.nc: Levitus climatological salinity[[BR]] |
| 72 | EMPave_old.dat: fresshwater correction flux[[BR]] |
| 73 | geothermal_heating.nc: constant geothermal heat flux[[BR]] |
| 74 | K1rowdrg.nc, M2rowdrg.nc, mask_itf.nc: parametrization of vertical mixing due to tidal mixing (key zdftmx) [[BR]] |
| 75 | ncar_precip.15JUNE2009_fill.nc, ncar_rad.15JUNE2009_fill.nc, q_10.15JUNE2009_fill.nc, t_10.15JUNE2009_fill.nc, u_10.15JUNE2009_fill.nc, v_10.15JUNE2009_fill.nc; forcing data set for CORE bulk formulae[[BR]] |
| 76 | weights_core_orca2_bicubic_noc.nc and weights_core_orca2_bilinear_noc.nc: weight ( used in interpolation-on-the-fly) to interpolate forcing fields on the model grid[[BR]] |
| 77 | resto.nc: damping zones for T&S( tradmp) [[BR]] |
| 78 | |
| 79 | |
| 80 | More informations on input and configuration files in NEMO [ ?????? reference manual ] |
| 81 | |
| 82 | |
| 83 | ON-THE-FLY Interpolation |
| 84 | |
| 85 | NEMO allows to use the interpolation on the fly option allowing to interpolate input data during the run. If you want to use this option you need files giving informations on weights, which have been created.[[BR]] |
| 86 | You can find here 2 weights files bil_weights for scalar field (bilinear interpolation) and bic_weights for vector field (bicubic interpolation) [ http://prodn.idris.fr/thredds/catalog/ipsl_public/reee512/ORCA2_ONTHEFLY/WEIGHTS/catalog.html Weights ] files.[[BR]] |
| 87 | The data files used are COREII forcing (downloaded from http://data1.gdfl.noaa.gov/nomads/forms/mom4/COREv2) extrapolated on continents, ready to be used for on the fly option: [ http://prodn.idris.fr/thredds/catalog/ipsl_public/reee512/ORCA2_ONTHEFLY/FILLED_FILES/catalog.html COREII ] forcing files extrapolated on continents[[BR]] |