...

Here, we observe rising air close to the equator and sinking near 25 degrees north latitude. Since this average is the January average, during winter in the northern hemisphere, the strongest movement is observed in the northern hemisphere, where the temperature gradient is strongest. Similarly, the sinking motion is observed at a lower latitude due to the axis pointing away from the sun. We may also plot the meridianal movement of the air to demonstrate that this rising and sinking is connected in a single cell.

Tank

...tank...