Have been looking around a bit for a shapefile/kml/etc file of global climatic zones (as listed here: https://en.wikipedia.org/wiki/Geographical_zone) -- temperature, subtropical, tropical, etcetera.
Also would be very pleased to find gis overlays detailing photoperiod areas, that sort of thing?
An online GIS service would be fine for this as well for this, as long as its a real GIS with aerial overlays etc, not a plane paper PDF deal, which is about all I can find.
One promising (but dead link) source I found before posting question: https://www.esrl.noaa.gov/psd/data/usclimdivs/boundaries.html