so final rough version of the water currents. we are good to move on. Most of the small arrows do not have any impact on climates but are useful if someone plans to make a seafaring civilization. More details for later...

Attachment 66548

and here. that's the one:
Attachment 66549
If you wonder, the lines are for the equator and the 45th latitudes.

Ok but we still need some grid no ?

500x500 mean :

40 000/500=80

it's 80x40= 3200 but we have more than 70% water and 2 relatively big and possibly boring poles.

I don't have time to finish my message. I'll be back on this later.