POP Slices
popslice_1.ncl: POP lat/lon
info is two dimensional, so coordinate subscripting can not be used
to choose a single lat/lon slice. This script was contributed by W. Wu
as a means of getting around this issue. Thanks Wu!
popslice_2.ncl: Same script as
example 1, but some of the reordering has been placed into a function
and made more general.