Reply With QuoteI wouldn't call what I drew "winds" but atmospheric circulation.
The difference being that winds are what happens at a given time at a given point e.g locally while AC is the yearly average of what happens over a zone.
That's why winds are more or less random and may change all the time while AC is neither random nor changes all the time. Well it is and it does but at much, much bigger time scales - decades, centuries and more.
That's why if you do a map and want to place the biomes correctly, it doesn't matter if you get all the micro climates (monsoons included) right. You only need to get the fundamental (invariant) climatic features e.g temperatures and humidities right. It is onlyif you have time and interest that you can then fine tune the climate and the corresponding biomes at regional scales.
And these fundamental features are all resumed in the schematic on the right edge of the map I joined.
To 4.
Yes I am
The cells on the right edge are a vertical section of the atmosphere. The green line is the ground and the blue (cold) and red (hot) lines show how the atmosphere circulates in these cells. You must imagine a cell like a cylinder with its axis running all around the planet and parallel to the latitude circles.
So back to what made you Wonder.
At 30° the high altitude cold and dry air of the Hadley cell is going down what creates there incidentally high pressure zones.
Once it is on ground, it must close the loop (mass conservation) and starts to move back to the equator.
The neighbouring Ferrel cell is doing the same - high altitude cold dry air is also going down at 30°.
Once it is on ground, it must also close the loop and starts moving northwards (towards the 60°) where it will go up.
But as I said in the previous post, the Coriolis force in N hemisphere deviates to east what moves northwards (and to west what moves southwards).
Also its intensity increases when the latitude increases.
So as the air of the Ferrel cell travels on ground northwards, it is deviated more and more strongly to east and the result are the arrows I drew.
Basically the temperate humid zones I drew are like Ireland.
The dominating circulation comes from the west (Coriolis etc) and to the west is an ocean. That's why this air is saturated and will release the rain at any occasion it gets. What is quite often
Just incidentally - you don't need to take the polar cells seriously. They are the smallest and weakest of the 3 so they are not very important. The only thing Worth noting is that you have a high pressure on pole, everything is cold and horribly dry (lowest humidity on a planet are not deserts but poles), and the circulation is basically just a ring flowing clockwards (N pole) around the pole's High.
Originally Posted by Azelor
