Geopotential height isolines artifacts on BOM mini models

[planetjim]

The geopotential height lines on the BOM mini models - eg, ACCESS-C VT - show some unphysical artifacts. It appears that the isoline display goes to a 1 m step in some circumstances and either the data, a surface correction and/or the drawing algorithm doesn't cope to well. A 1m step is probably too fine in many situations anyway, there are too many lines.

[Gkikas LGPZ]

@planetjim
👍 1m step is too little.
I propose 10m (1 dm).

[idefix37]

@planetjim
What is the point of geopotential heights at surface level ?
Another glitch, at 500hPa that is a more common use of these isolines, the values disappear in ACCESS- C SY.