spectral_radSurfaceBlackbody

Workspace.spectral_radSurfaceBlackbody(self, spectral_rad: pyarts3.arts.StokvecVector | None = None, spectral_rad_jac: pyarts3.arts.StokvecMatrix | None = None, freq_grid: pyarts3.arts.AscendingGrid | None = None, surf_field: pyarts3.arts.SurfaceField | None = None, jac_targets: pyarts3.arts.JacobianTargets | None = None, ray_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_point. \(\nu\) is the frequency grid.

Author: Richard Larsson

Parameters:

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

• spectral_rad_jac (StokvecMatrix, optional) – Jacobian of spectral_rad with respect to jac_targets. See spectral_rad_jac, defaults to self.spectral_rad_jac [OUT]

• freq_grid (AscendingGrid, optional) – A frequency grid. Unit: Hz. See freq_grid, defaults to self.freq_grid [IN]

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

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

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