propagation_matrixInit

Workspace.propagation_matrixInit(self, propagation_matrix: pyarts.arts.PropmatVector | None = None, propagation_matrix_source_vector_nonlte: pyarts.arts.StokvecVector | None = None, propagation_matrix_jacobian: pyarts.arts.PropmatMatrix | None = None, propagation_matrix_source_vector_nonlte_jacobian: pyarts.arts.StokvecMatrix | None = None, jacobian_targets: pyarts.arts.JacobianTargets | None = None, frequency_grid: pyarts.arts.AscendingGrid | None = None) → None

Initialize propagation_matrix, propagation_matrix_source_vector_nonlte, and their derivatives to zeroes.

This method must be used inside propagation_matrix_agenda and then be called first.

Author(s): Oliver Lemke, Richard Larsson

Parameters:

• propagation_matrix (PropmatVector, optional) – This contains the propagation matrix for the current path point. See propagation_matrix, defaults to self.propagation_matrix [OUT]

• propagation_matrix_source_vector_nonlte (StokvecVector, optional) – The part of the source vector that is due to non-LTE. See propagation_matrix_source_vector_nonlte, defaults to self.propagation_matrix_source_vector_nonlte [OUT]

• propagation_matrix_jacobian (PropmatMatrix, optional) – . See propagation_matrix_jacobian, defaults to self.propagation_matrix_jacobian [OUT]

• propagation_matrix_source_vector_nonlte_jacobian (StokvecMatrix, optional) – Partial derivative of the propagation_matrix_source_vector_nonlte with regards to jacobian_targets. See propagation_matrix_source_vector_nonlte_jacobian, defaults to self.propagation_matrix_source_vector_nonlte_jacobian [OUT]

• jacobian_targets (JacobianTargets, optional) – A list of targets for the Jacobian Matrix calculations. See jacobian_targets, defaults to self.jacobian_targets [IN]

• frequency_grid (AscendingGrid, optional) – The discrete frequency grid. See frequency_grid, defaults to self.frequency_grid [IN]