Hi all,Just wondering if there is a simple way to add a circle around a polar stereographic plot - i.e. a graticule just at the low latitude limit. I've tried using mp_graticule.jnl with lon_min=0, lon_max=360, lon_delta=360 (etc), but I can't get it to work. I've attached a picture which illustrates what I'm trying to do.
As always, thanks for any help, Paul