BUG: Default lowlat used in contour plotting different to default in proj

[carleyjmartin]

BUG

This bug appears when lowlat is not set in convection maps. Default lowlat generally is 30 in projs, but inside conculate_potentials the default is 60. Contours will only be calculated down the the 60 instead of the hmb or lowest latitude. Very small fix and does not change data that is plotted so minor for now. Normally I would just fix this as it's so minor, but I don't have time right now and will get to it later if no one else wants a cheeky 1-line PR for authorship on a next minor release.

Priority

• Minor - typo, incorrect naming, fails on specific uncommon situation
• Major - misrepresentation of data, failure in a common situation
• Urgent - failure in usage, large misrepresentation

Example of the bug

Any call to pydarn.Maps.plot_mapdata with data below 60.

Attempts

What have you tried already to fix it?
Changed int=60 to int=30 in line 904

What have you tried to get around it?
For now you can set a lowlat value and it will work fine, don't use the default.

Potential Solution(s)

See attempt above