ARTS built-in documentation server

Workspace Method ppathStepByStep

Description

Standard method for calculation of propagation paths.

This method calculates complete propagation paths in a stepwise
manner. Each step is denoted as a "ppath_step" and is the path
through/inside a single grid box.

The definition of a propgation path cannot be accommodated here.
For more information read the chapter on propagation paths in the
ARTS user guide.

This method should never be called directly. Use ppathCalc instead
if you want to extract propagation paths.

Authors: Patrick Eriksson

Synopsis

ppathStepByStep(

ppath, ppath_step_agenda, ppath_inside_cloudbox_do, atmosphere_dim, p_grid, lat_grid, lon_grid, t_field, z_field, vmr_field, f_grid, refellipsoid, z_surface, cloudbox_on, cloudbox_limits, rte_pos, rte_los, ppath_lraytrace )

Variables

OUT	ppath	(Ppath)	The propagation path for one line-of-sight.
IN	ppath_step_agenda	(Agenda)	See agendas.cc.
IN	ppath_inside_cloudbox_do	(Index)	Flag to perform ray tracing inside the cloudbox.
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.
IN	t_field	(Tensor3)	The field of atmospheric temperatures.
IN	z_field	(Tensor3)	The field of geometrical altitudes.
IN	vmr_field	(Tensor4)	VMR field.
IN	f_grid	(Vector)	The frequency grid for monochromatic pencil beam calculations.
IN	refellipsoid	(Vector)	Reference ellipsoid.
IN	z_surface	(Matrix)	The surface altitude.
IN	cloudbox_on	(Index)	Flag to activate the cloud box.
IN	cloudbox_limits	(ArrayOfIndex)	The limits of the cloud box.
IN	rte_pos	(Vector)	A geographical position for starting radiative transfer calculations.
IN	rte_los	(Vector)	A line-of-sight for (complete) radiative transfer calculations.
IN	ppath_lraytrace	(Numeric)	Maximum length of ray tracing steps when determining propagation paths.