ppath_fieldFromDownUpLimbGeoms

Workspace.ppath_fieldFromDownUpLimbGeoms(self: pyarts.arts._Workspace, ppath_field: pyarts.arts.WorkspaceVariable | pyarts.arts.ArrayOfPpath | None = self.ppath_field, ppath_agenda: pyarts.arts.WorkspaceVariable | pyarts.arts.Agenda | None = self.ppath_agenda, ppath_lmax: pyarts.arts.WorkspaceVariable | pyarts.arts.Numeric | None = self.ppath_lmax, ppath_lraytrace: pyarts.arts.WorkspaceVariable | pyarts.arts.Numeric | None = self.ppath_lraytrace, atmgeom_checked: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.atmgeom_checked, z_field: pyarts.arts.WorkspaceVariable | pyarts.arts.Tensor3 | None = self.z_field, f_grid: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.f_grid, cloudbox_on: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.cloudbox_on, cloudbox_checked: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.cloudbox_checked, ppath_inside_cloudbox_do: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.ppath_inside_cloudbox_do, rte_pos: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.rte_pos, rte_los: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.rte_los, rte_pos2: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.rte_pos2, refellipsoid: pyarts.arts.WorkspaceVariable | pyarts.arts.Vector | None = self.refellipsoid, atmosphere_dim: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = self.atmosphere_dim, nz: pyarts.arts.WorkspaceVariable | pyarts.arts.Index | None = 3, verbosity: pyarts.arts.WorkspaceVariable | pyarts.arts.Verbosity | None = self.verbosity) → None

Computes ppath_field from “standalone” sensors looking upwards from 0 m altitude with zenith angles range [0, 90], downwards from the top of the atmosphere covering the zenith angle range from 180 degrees to the surface tangent minus 1e-4 degrees, and through the limb covering at the same position as the downwards looking sensor covering the zenith angle range from the surface tangent plus 1e-4 degrees to 90 degrees minus 1e-4 degrees.

The top of the atmosphere is from z_field (-1, 0, 0) [python range notation].

The field will consist of 3 * nz arrays structured as [up, limb, down]

The intent of this function is to generate a field so that calculations of ppvar_iy of all the fields will cover the zenith angle space of all positions in z_field.

Only works for atmosphere_dim 1, spherical planets, and ppath_lmax < 0

Author(s): Richard Larsson

Parameters:

  • ppath_field (ArrayOfPpath, optional) – An array meant to build up the necessary geometries for radiative. See ppath_field, defaults to self.ppath_field [OUT]

  • ppath_agenda (Agenda, optional) – Calculation of complete propagation paths. See ppath_agenda, defaults to self.ppath_agenda [IN]

  • ppath_lmax (Numeric, optional) – Maximum length between points describing propagation paths. See ppath_lmax, defaults to self.ppath_lmax [IN]

  • ppath_lraytrace (Numeric, optional) – Maximum length of ray tracing steps when determining propagation. See ppath_lraytrace, defaults to self.ppath_lraytrace [IN]

  • atmgeom_checked (Index, optional) – OK-flag for the geometry of the model atmosphere. See atmgeom_checked, defaults to self.atmgeom_checked [IN]

  • z_field (Tensor3, optional) – The field of geometrical altitudes. See z_field, defaults to self.z_field [IN]

  • f_grid (Vector, optional) – The frequency grid for monochromatic pencil beam calculations. See f_grid, defaults to self.f_grid [IN]

  • cloudbox_on (Index, optional) – Flag to activate the cloud box. See cloudbox_on, defaults to self.cloudbox_on [IN]

  • cloudbox_checked (Index, optional) – OK-flag for variables associated with the cloudbox. See cloudbox_checked, defaults to self.cloudbox_checked [IN]

  • ppath_inside_cloudbox_do (Index, optional) – Flag to perform ray tracing inside the cloudbox. See ppath_inside_cloudbox_do, defaults to self.ppath_inside_cloudbox_do [IN]

  • rte_pos (Vector, optional) – A geographical position for starting radiative transfer calculations. See rte_pos, defaults to self.rte_pos [IN]

  • rte_los (Vector, optional) – A line-of-sight for (complete) radiative transfer calculations. See rte_los, defaults to self.rte_los [IN]

  • rte_pos2 (Vector, optional) – A second geographical position to define the geometry for. See rte_pos2, defaults to self.rte_pos2 [IN]

  • refellipsoid (Vector, optional) – Reference ellipsoid. See refellipsoid, defaults to self.refellipsoid [IN]

  • atmosphere_dim (Index, optional) – The atmospheric dimensionality (1-3). See atmosphere_dim, defaults to self.atmosphere_dim [IN]

  • nz (Index, optional) – Number of zenith angles per position. Defaults to 3 [IN]

  • verbosity (Verbosity) – ARTS verbosity. See verbosity, defaults to self.verbosity [IN]