ARTS built-in documentation server

Workspace Variable sensor_pol

Sensor polarisations.

The default for output is to give data for the selected Stokes
elements (1:stokes_dim). This variable defines the polarisations
that are actually measured (= or just what shall be outputted).
This variable is used as input for WSM that handles the extraction
of polarisation components. This in contrast to sensor_response_pol
and that are used for internal bookkeeping

The polarisation states/components are coded as
   0 = Undefined.
   1 = I, total intensity.
   2 = Q, second Stokes component, Iv - Ih.
   3 = U, third Stokes component, I+45 - I-45.
   4 = V, forth Stokes component, Irc - Ilc
   5 = Iv, intensity of vertically polarised component.
   6 = Ih, intensity of horizontally polarised component.
   7 = I+45, intensity of +45 deg linearly polarised component.
   8 = I-45, intensity of -45 deg linearly polarised component.
   9 = Irhc, intensity of right-hand circularly polarised component.
  10 = Ilhc, intensity of left-hand circularly polarised component.

See the documentation for definition of the Stokes vector and the
different components.

If the sensor measures the vertical and horisontal componenets, this
variable shall accordingly be set to [5,6].

The conversion to Planck-BT of components 2-4 requires that component
1 is kept, and is then included as first element.

The shift from the Stokes vector can be made at any stage when of the
sensor response set-up. The responses used must of course be adopted
correspondingly. Or reversed, if the antenna response is defined for
Iv and Ih it could be useful to shift polarisation as first sensor
operation.

Usage: Set by the user.

Group: ArrayOfIndex

Specific methods that can generate sensor_pol

none

Generic and supergeneric methods that can generate sensor_pol

Specific methods that require sensor_pol

Generic and supergeneric methods that can use sensor_pol

Agendas that can generate sensor_pol

none

Agendas that require sensor_pol

none