I have made a map of the sirens in Greenland! there's definitely a country-wide system or program of some sort in place, but I can't find any info on test dates or anything else for it. The most common siren type is some Elektror-looking thing, but the shroud doesn't match anything I can find so I just call it Type A, and Type B for a different mystery siren etc... Any info on test times, siren models or locations is greatly appreciated!
https://www.google.com/maps/d/edit?mid= ... sp=sharing