I often find that PADI Divemasters and PADI IDC Candidates often have a problem with a question about the Coreolis Effect. When you look in most PADI materials, you’ll usually find a very simple explanation that states: Major Ocean Currents flow Clockwise in the Northern hemisphere, and Counter Clockwise in the Southern hemisphere.  Whilst this is of course very true, it doesn’t really explain why.

I have tried to explain the reasons why on this video. I hope that you like it, The production is a bit scruffy!  but the content is fine.  Let me know if you have any questions