Change default central longitude to avoid wrapping across meridian

Author: cbegeman

polaris/tasks/ocean/customizable_viz/customizable_viz.cfg

@@ -22,10 +22,14 @@ min_longitude = 0
 
 max_longitude = 360
 
+norm_args = {}
+
 # the type of norm used in the colormap
 norm_type = linear
 
-central_longitude = 0.
+# Note: for some projections, choosing a different central longitude may
+# result in cells spanning the plot boundary
+central_longitude = 180.
 
 z_target = 0.