Can someone please provide a climate zone shape file for Canada? Preferably based on aridity index. I have searched a lot but have not found any sources for it. Thank you!
check the images and navigate back to the sources.... you might get a hit or a close-enough
for a start http://www.parc.ca/pdf/research_publications/summary_docs/SD2003-01.pdf Prairies report
... or have a look at the Living Atlas of the World: Living Atlas of the World | ArcGIS