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Workspace Method AtmFieldPerturbAtmGrids
Description
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``.
Authors: Patrick Eriksson
Synopsis
| AtmFieldPerturbAtmGrids( | perturbed_field, atmosphere_dim, p_grid, lat_grid, lon_grid, original_field, pert_index, pert_size, pert_mode ) |
Variables
| GOUT | perturbed_field | (Tensor3) | Perturbed/modified field. |
| IN | atmosphere_dim | (Index) | The atmospheric dimensionality (1-3). |
| IN | p_grid | (Vector) | The pressure grid. |
| IN | lat_grid | (Vector) | The latitude grid. |
| IN | lon_grid | (Vector) | The longitude grid. |
| GIN | original_field | (Tensor3) | Original field, e.g. t_field. |
| GIN | pert_index | (Index) | Index of position where the perturbation shall be performed. |
| GIN | pert_size | (Numeric) | Size of perturbation. |
| GIN | pert_mode | (String, Default: "absolute") | Type of perturbation, absolute or relative. |