ARTS built-in documentation server

Workspace Method atmgeom_checkedCalc

Description

Checks consistency of geometric considerations of the atmosphere.

The following WSVs are checked: z_field, refellipsoid, z_surface,
lat_true and lon_true. If any of the variables above is changed,
then this method shall be called again (no automatic check that this is
fulfilled!).

The tests include that:
 1. refellipsoid has correct size, and that eccentricity is
    set to zero if 1D atmosphere.
 2. z_field and z_surface have sizes consistent with the
    atmospheric grids.
 3. There is no gap between z_surface and z_field.
 4. A rough search of maximum gradient of the altitude of the pressure
    level closest to 500 hPa is made. If this value exceeds the GIN
    ``max500hpa_gradient`` an error is issued. Please note that the unit
    of this GIN is m per 100km. For normal conditions on Earth, large
    scale gradients of the 500 hPa level is in the order of 20m/100km.

lat_true and lon_true are allowed to be empty.

If any test fails, there is an error. Otherwise, atmgeom_checked
is set to 1.

See further atmgeom_checkedCalc.

Authors: Patrick Eriksson

Synopsis

atmgeom_checkedCalc(

atmgeom_checked, atmosphere_dim, p_grid, lat_grid, lon_grid, z_field, refellipsoid, z_surface, lat_true, lon_true, max500hpa_gradient )

Variables

OUT	atmgeom_checked	(Index)	OK-flag for the geometry of the model atmosphere.
IN	atmosphere_dim	(Index)	The atmospheric dimensionality (1-3).
IN	p_grid	(Vector)	The pressure grid.
IN	lat_grid	(Vector)	The latitude grid.
IN	lon_grid	(Vector)	The longitude grid.
IN	z_field	(Tensor3)	The field of geometrical altitudes.
IN	refellipsoid	(Vector)	Reference ellipsoid.
IN	z_surface	(Matrix)	The surface altitude.
IN	lat_true	(Vector)	Latitudinal geolocation for 1D and 2D data.
IN	lon_true	(Vector)	Longitudinal geolocation for 1D and 2D data.
GIN	max500hpa_gradient	(Numeric, Default: 500)	The maximum allowed gradient of 500 hPa pressure level [m/100km].