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Workspace Method InterpSurfaceFieldToPosition

Description

Point interpolation of surface fields.

The default way to specify the position is by rtp_pos.

Linear interpolation is applied.

The interpolation is done for the latitude and longitude in
rtp_pos, while the altitude in rtp_pos is not part of the
calculations. However, it is checked that the altitude of rtp_pos
is inside the range covered by z_surface with a 1 m margin, to
give a warning when the specified position is not consistent with
the surface altitudes.

Authors: Patrick Eriksson

Synopsis

InterpSurfaceFieldToPosition(

out, atmosphere_dim, lat_grid, lon_grid, rtp_pos, z_surface, field )

Variables

GOUT	out	(Numeric)	Value obtained by interpolation.
IN	atmosphere_dim	(Index)	The atmospheric dimensionality (1-3).
IN	lat_grid	(Vector)	The latitude grid.
IN	lon_grid	(Vector)	The longitude grid.
IN	rtp_pos	(Vector)	Position of a radiative transfer point.
IN	z_surface	(Matrix)	The surface altitude.
GIN	field	(Matrix)	Field to interpolate.