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Computes the 16-grid points that determine the JC-scheme, based on the coordinates of the central point.
get_jcpoints(lon, lat)
Longitude of the central point.
Latitude of the central point.
A data frame with the coordinates of the 16-grid points and the central point.
The function excludes the poles and the equatorial areas between 25S-25N.
plot_jcscheme