The Equator

Hadley cell is where the heat rises at the equator then hits the tropopause and goes to 30n or 30s, then falls back down at an angle because the earth spins. The Polar cell is similar to the Hadley cell air sinks then goes to 60 and rises. The Ferrel cell is in between the Hadley and Polar cells, it does the same thing, air rises and then sinks back down.