ARTS built-in documentation server

Workspace Method sensor_responsePolarisation

Description

Extraction of non-default polarisation components.

The default is to output the Stokes elements I, Q, U and V (up to
stokes_dim). This method allows to change the "polarisation" of
the output. Polarisation components to be extracted are selected by
sensor_pol. This method can be applied at any step of the sensor
matrix set-up.

The method can only be applied on data for I, Q, U and V. The value
of stokes_dim must be sufficiently large for the selected
components. For example, I+45 requires that stokes_dim is at
least 3. 

See sensor_pol for coding of polarisation states.

Note that the state of y_unit is considered. This WSV must give
the actual unit of the data. This as, the extraction of components
is slightly different if data are radiances or brightness
temperatures.  In practise this means that y_unit (as to be
applied inside yCalc) must be set before calling this method.

Authors: Patrick Eriksson

Synopsis

sensor_responsePolarisation(

sensor_response, sensor_response_f, sensor_response_pol, sensor_response_za, sensor_response_aa, sensor_response_pol_grid, sensor_response_f_grid, sensor_response_za_grid, sensor_response_aa_grid, stokes_dim, y_unit, sensor_pol )

Variables

OUT	sensor_response	(Sparse)	The matrix modelling the total sensor response.
OUT	sensor_response_f	(Vector)	The frequencies associated with the output of sensor_response.
OUT	sensor_response_pol	(ArrayOfIndex)	The polarisation states associated with the output of sensor_response.
OUT	sensor_response_za	(Vector)	The relative zenith angles associated with the output of sensor_response.
OUT	sensor_response_aa	(Vector)	The relative azimuth angles associated with the output of sensor_response.
OUT	sensor_response_pol_grid	(ArrayOfIndex)	The "polarisation grid" associated with sensor_response.
IN	sensor_response	(Sparse)	The matrix modelling the total sensor response.
IN	sensor_response_f	(Vector)	The frequencies associated with the output of sensor_response.
IN	sensor_response_pol	(ArrayOfIndex)	The polarisation states associated with the output of sensor_response.
IN	sensor_response_za	(Vector)	The relative zenith angles associated with the output of sensor_response.
IN	sensor_response_aa	(Vector)	The relative azimuth angles associated with the output of sensor_response.
IN	sensor_response_f_grid	(Vector)	The frequency grid associated with sensor_response.
IN	sensor_response_pol_grid	(ArrayOfIndex)	The "polarisation grid" associated with sensor_response.
IN	sensor_response_za_grid	(Vector)	The zenith angle grid associated with sensor_response.
IN	sensor_response_aa_grid	(Vector)	The azimuth angle grid associated with sensor_response.
IN	stokes_dim	(Index)	The dimensionality of the Stokes vector (1-4).
IN	y_unit	(String)	Unit for spectral values returned by radiative transfer methods.
IN	sensor_pol	(ArrayOfIndex)	Sensor polarisations.