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Workspace Method specular_losCalc

Description

Calculates the specular direction for intersections with the
surface.

A help method to set up the surface properties. This method
calculates specular_los, that is required in several methods
to convert zenith angles to incidence angles.

The method also returns the line-of-sight for the surface normal.

Authors: Patrick Eriksson

Synopsis

specular_losCalc( specular_los, surface_normal, rtp_pos, rtp_los, atmosphere_dim, lat_grid, lon_grid, refellipsoid, z_surface )

Variables

OUTspecular_los(Vector)The specular direction (for reflection by a flat surface).
OUTsurface_normal(Vector)The normal vector for a point at the surface.
INrtp_pos(Vector)Position of a radiative transfer point.
INrtp_los(Vector)Line-of-sight at a radiative transfer point.
INatmosphere_dim(Index)The atmospheric dimensionality (1-3).
INlat_grid(Vector)The latitude grid.
INlon_grid(Vector)The longitude grid.
INrefellipsoid(Vector)Reference ellipsoid.
INz_surface(Matrix)The surface altitude.