spectral_radianceSurfaceBlackbody

Workspace.spectral_radianceSurfaceBlackbody(self, spectral_radiance: pyarts3.arts.StokvecVector | None = None, spectral_radiance_jacobian: pyarts3.arts.StokvecMatrix | None = None, frequency_grid: pyarts3.arts.AscendingGrid | None = None, surface_field: pyarts3.arts.SurfaceField | None = None, jacobian_targets: pyarts3.arts.JacobianTargets | None = None, ray_path_point: pyarts3.arts.PropagationPathPoint | None = None) → None

Set surface spectral radiance from Planck function of the surface temperature.

\[\begin{split}\vec{I} = \left[ \begin{array}{c} \frac{2h\vec{\nu}^3}{c^2} \frac{1}{e^{\frac{h\vec{\nu}}{kT_s}} - 1} \\ 0 \\ 0 \\ 0 \end{array}\right],\end{split}\]

where \(T_s\) is the surface temperature extracted at the input ray_path_point. \(\nu\) is the frequency grid.

Author: Richard Larsson

Parameters:

• spectral_radiance (StokvecVector, optional) – A spectral radiance vector. See spectral_radiance, defaults to self.spectral_radiance [OUT]

• spectral_radiance_jacobian (StokvecMatrix, optional) – Jacobian of spectral_radiance with respect to jacobian_targets. See spectral_radiance_jacobian, defaults to self.spectral_radiance_jacobian [OUT]

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

• surface_field (SurfaceField, optional) – The surface field. See surface_field, defaults to self.surface_field [IN]

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

• ray_path_point (PropagationPathPoint, optional) – A single path point. See ray_path_point, defaults to self.ray_path_point [IN]