Nearly right, you also need to specify the /LINE qualifier. I'd also use the symbols $YAXIS_MAX and $YAXIS_MIN to get the upper and lower limits of the frame automatically.
If you remap your data to the appropriate latitude grid this sort of thing can be done automatically with the PLOT/GRAT, PLOT/HGRAT and PLOT/VGRAT commands. (Aside to the documentation maintainers /GRAT and friends are mentioned in documentation for PLOT but they aren't listed in the summary of qualifiers at the top of the page.)
On 25/05/15 12:30, Nicolas Freychet wrote: