In addition to the examples on this page, we suggest you review the panel page, if your figure includes a panel plot.

Example pages containing: tips | resources | functions/procedures
NCL Graphics: Publication Layout Tricks

tmXBLabelsOn = False, and tmXBOn = False, turns off the bottom longitude lines and labels.
txString adds a common title to the panel plot.

gsnPanelFigureStrings = (/"a)","b)"/), is the resource that will add a string to a corner in a panel plot. The default position is the bottom right-hand corner. To change the location, set "amJust" to one of the following:("TopRight", "TopLeft", or "BottomLeft").
The size of the figure strings is controlled by the gsnPanelFigureStringsFontHeightF resource.

drawNDCGrid will create an NDC map on which you can draw your plots. This is useful for placing further text, polymarkers, polygons, and/or polylines in NDC coordinates gsn_text_ndc near the plot.