AtmFieldPerturbAtmGrids

Workspace.AtmFieldPerturbAtmGrids(self: pyarts.arts._Workspace, perturbed_field: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Tensor3], atmosphere_dim: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index]] = self.atmosphere_dim, p_grid: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.p_grid, lat_grid: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.lat_grid, lon_grid: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Vector]] = self.lon_grid, original_field: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Tensor3], pert_index: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Index], pert_size: Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Numeric], pert_mode: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.String]] = "absolute", verbosity: Optional[Union[pyarts.arts.WorkspaceVariable, pyarts.arts.Verbosity]] = self.verbosity) → None

As AtmFieldPerturb(), but perturbation follows the atmospheric grids.

The method effectively performs this

  • perturbed_field = original_field

  • perturbed_field(p_index,lat_index,lon_index) += pert_size

if not pert_mode is set to relative when this is done

  • perturbed_field = original_field

  • perturbed_field(p_index,lat_index,lon_index) *= 1 * pert_size

where p_index etc. are derived from pert_index.

Author(s): Patrick Eriksson

Parameters:

  • perturbed_field (Tensor3) – Perturbed/modified field. [OUT]

  • atmosphere_dim (Index, optional) – The atmospheric dimensionality (1-3). See atmosphere_dim, defaults to self.atmosphere_dim [IN]

  • p_grid (Vector, optional) – The pressure grid. See p_grid, defaults to self.p_grid [IN]

  • lat_grid (Vector, optional) – The latitude grid. See lat_grid, defaults to self.lat_grid [IN]

  • lon_grid (Vector, optional) – The longitude grid. See lon_grid, defaults to self.lon_grid [IN]

  • original_field (Tensor3) – Original field, e.g. t_field. [IN]

  • pert_index (Index) – Index of position where the perturbation shall be performed. [IN]

  • pert_size (Numeric) – Size of perturbation. [IN]

  • pert_mode (String, optional) – Type of perturbation, absolute or relative. Defaults to "absolute" [IN]

  • verbosity (Verbosity) – ARTS verbosity. See verbosity, defaults to self.verbosity [IN]