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Workspace Method VectorZtanToZaRefr1D

Description

Converts a set of true tangent altitudes to zenith angles.

The tangent altitudes are given to the function as a vector, which
are converted to a generic vector of zenith angles. The position of
the sensor is given by the WSV sensor_pos. The function works
only for 1D. The zenith angles are always set to be positive.

Authors: Patrick Eriksson, Mattias Ekstrom

Synopsis

VectorZtanToZaRefr1D(

v_za, refr_index_air_agenda, sensor_pos, p_grid, t_field, z_field, vmr_field, refellipsoid, atmosphere_dim, f_grid, v_ztan )

Variables

GOUT	v_za	(Vector)	Vector with zenith angles.
IN	refr_index_air_agenda	(Agenda)	See agendas.cc.
IN	sensor_pos	(Matrix)	The sensor position for each measurement block.
IN	p_grid	(Vector)	The pressure grid.
IN	t_field	(Tensor3)	The field of atmospheric temperatures.
IN	z_field	(Tensor3)	The field of geometrical altitudes.
IN	vmr_field	(Tensor4)	VMR field.
IN	refellipsoid	(Vector)	Reference ellipsoid.
IN	atmosphere_dim	(Index)	The atmospheric dimensionality (1-3).
IN	f_grid	(Vector)	The frequency grid for monochromatic pencil beam calculations.
GIN	v_ztan	(Vector)	Vector with tangent altitudes.