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using CopernicusMetadata to set sea ice fails because it is a 2D field #643

@xkykai

Description

@xkykai

There are two problems with using GLORYS data to set up the sea ice initial conditions.

  1. :sea_ice_thickness and :sea_ice_concentration are both 2D fields (in space) for GLORYS, which is not accounted for in z_interfaces and is_three_dimensional
  2. There are missing values in both fields, which are converted into NaN but end up in the sea ice model if no further treatment is provided.

Here's an MWE for problem 1:

using ClimaOcean
using ClimaSeaIce
using Oceananigans
using Oceananigans.Grids
using Oceananigans.Units
using Oceananigans.OrthogonalSphericalShellGrids
using ClimaOcean.OceanSimulations
using ClimaOcean.DataWrangling
using ClimaSeaIce.SeaIceThermodynamics: IceWaterThermalEquilibrium
using Printf
using Dates
using PythonCall

arch = CPU()

Nx = 90 # longitudinal direction 
Ny = 45 # meridional direction 
Nz = 60

z_faces = ExponentialDiscretization(Nz, -6000, 0)

const z_surf = z_faces(Nz)

grid = TripolarGrid(arch;
                    size = (Nx, Ny, Nz),
                    z = z_faces,
                    halo = (7, 7, 7))

bottom_height = regrid_bathymetry(grid; minimum_depth=15, major_basins=1, interpolation_passes=10)
grid = ImmersedBoundaryGrid(grid, GridFittedBottom(bottom_height); active_cells_map=true)

ocean = ocean_simulation(grid)

sea_ice = sea_ice_simulation(grid, ocean)

dir = joinpath(homedir(), "GLORYS_data")
hᵢ = Metadatum(:sea_ice_thickness;     dataset=GLORYSMonthly(), dir)
ℵᵢ = Metadatum(:sea_ice_concentration; dataset=GLORYSMonthly(), dir)
set!(sea_ice.model, h=hᵢ, ℵ=ℵᵢ)

with an output of

ERROR: NetCDF error: Variable 'depth' not found in file C:\Users\xinle\GLORYS_data\sithick_GLORYSMonthly_1993-01-01T00-00-00_1993-01-01T00-00-00.nc (NetCDF error code: -49)
Stacktrace:
  [1] nc_inq_varid(ncid::Int32, name::String)
    @ NCDatasets C:\Users\xinle\.julia\packages\NCDatasets\76uhE\src\netcdf_c.jl:1558
  [2] _variable
    @ C:\Users\xinle\.julia\packages\NCDatasets\76uhE\src\variable.jl:70 [inlined]
  [3] variable
    @ C:\Users\xinle\.julia\packages\NCDatasets\76uhE\src\variable.jl:81 [inlined]
  [4] cfvariable(ds::NCDatasets.NCDataset{Nothing, Missing}, varname::String)
    @ CommonDataModel C:\Users\xinle\.julia\packages\CommonDataModel\b3BkC\src\cfvariable.jl:87
  [5] getindex
    @ C:\Users\xinle\.julia\packages\CommonDataModel\b3BkC\src\dataset.jl:170 [inlined]
  [6] z_interfaces(metadata::Metadatum{GLORYSMonthly, DateTime, Nothing})
    @ ClimaOcean.DataWrangling.Copernicus c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\Copernicus\Copernicus.jl:139
  [7] native_grid(metadata::Metadatum{GLORYSMonthly, DateTime, Nothing}, arch::CPU; halo::Tuple{Int64, Int64, Int64})
    @ ClimaOcean.DataWrangling c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\metadata_field.jl:20
  [8] native_grid
    @ c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\metadata_field.jl:18 [inlined]
  [9] Field(metadata::Metadatum{…}, arch::CPU; inpainting::Nothing, mask::Nothing, halo::Tuple{…}, cache_inpainted_data::Bool)
    @ ClimaOcean.DataWrangling c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\metadata_field.jl:90
 [10] Field
    @ c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\metadata_field.jl:82 [inlined]
 [11] set!(target_field::Field{…}, metadata::Metadatum{…}; kw::@Kwargs{})
    @ ClimaOcean.DataWrangling c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\metadata_field.jl:158
 [12] set!
    @ c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\src\DataWrangling\metadata_field.jl:156 [inlined]
 [13] #set!#5
    @ C:\Users\xinle\.julia\packages\ClimaSeaIce\E9ukI\src\sea_ice_model.jl:149 [inlined]
 [14] top-level scope
    @ c:\Users\xinle\Dropbox\MIT\fix_glorys_seaice\ClimaOcean.jl\glorys_seaice_MWE.jl:39
Some type information was truncated. Use `show(err)` to see complete types.

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