3.6. Example Configuration

The following is a complete example yaml configuration file. This exact file is used by the ocean.vtloc ctest to test the vertical localization method of the ocean data assimilation.

---
mpi:
  ens_size: 10
  ppn: 1


solver:
  inflation:
    rtps: 0.0
    rtpp: 0.0
    mul: 1.0


state:
  class: stateio_nc
  verbose: false
  compression: 0

  hzgrid:
  - name: hz1
    lat2d: {file: grid/ocean.hgrid.nc, variable: geolat}
    lon2d: {file: grid/ocean.hgrid.nc, variable: geolon}
    lat1d: {file: grid/ocean.hgrid.nc, variable: lath}
    lon1d: {file: grid/ocean.hgrid.nc, variable: lonh}
    mask:  {file: grid/ocean.hgrid.nc, variable: wet}

  vtgrid:
  - name: vt1
    vert1d: {file: grid/ocean.vgrid.nc, variable: Layer}

  statedef:
  - name: ocn_t
    hzgrid: hz1
    vtgrid: vt1
    input:  {file: "bkg/bkg.#ENS4#.nc", variable: Temp}
    output: {file: "#TYPE#.#ENS4#.nc",  variable: Temp}

  - name: ocn_s
    hzgrid: hz1
    vtgrid: vt1
    input:  {file: "bkg/bkg.#ENS4#.nc", variable: Salt}
    output: {file: "#TYPE#.#ENS4#.nc",  variable: Salt}

  - name: ocn_u
    hzgrid: hz1
    vtgrid: vt1
    input:  {file: "bkg/bkg.#ENS4#.nc", variable: u}
    output: {file: "#TYPE#.#ENS4#.nc",  variable: u}

  - name: ocn_v
    hzgrid: hz1
    vtgrid: vt1
    input:  {file: "bkg/bkg.#ENS4#.nc", variable: v}
    output: {file: "#TYPE#.#ENS4#.nc",  variable: v}


localization:
  class: loc_ocean
  save_diag: true

  hzloc_prof:
    type: linearinterp_lat
    value:
    - {lat: 0.0,  radius: 720.0e3}
    - {lat: 90.0, radius: 200.0e3}

  hzloc_sat:
    type: linearinterp_lat
    value:
    - {lat: 0.0,  radius: 500.0e3}
    - {lat: 90.0, radius: 50.0e3}

  sat_obs:
  sat_plats:
  - ocn_sat

  vtloc_surf:
    type: bkg_t
    bkg_t_delta: 0.2
    bkg_t_var: ocn_t


observation:
  class: obsio_test

  synthetic_obs:
  - [ocn_t, ocn_sat, ocn_t, 20.0, -140.0, 5.0, 0.0, -1.0, 0.1]
  - [ocn_t, ocn_prf, ocn_t,  0.0, -140.0, 5.0, 0.0, -1.0, 1.0]
  - [ocn_t, ocn_prf, ocn_t,  0.0, -150.0, 5.0, 0.0, -1.0, 1.0]
  - [ocn_t, ocn_prf, ocn_t,  0.0, -160.0, 5.0, 0.0, -1.0, 1.0]
  - [ocn_t, ocn_prf, ocn_s,  0.0, -160.0, 5.0, 0.0,  0.5, 1.0]