Brewer–Dobson circulation
Brewer-Dobson circulation is like a big weather system in the sky that moves air around really high up in the atmosphere, way above where planes fly.
So, you know how when you blow up a balloon and let it go, it flies around the room really quickly? The Earth does the same thing - even though we can't see it happening because it's so high up. The air up there moves in big circles around the Earth, kind of like a Ferris wheel that goes all the way around the world.
But why does it do that? Well, it's all because of the Sun. The Sun heats up the Earth and makes it warm, and the hot air rises up into the sky. When the air gets high enough, it starts to cool off and sink back down to Earth. This creates a big loop of air that moves all around the world - and that's the Brewer-Dobson circulation.
And why is it important? Because it helps move something called ozone around too. Ozone is a special gas that helps protect us from the Sun's harmful rays. By moving ozone around the Earth, the Brewer-Dobson circulation helps keep us safe and healthy.
So, you know how when you blow up a balloon and let it go, it flies around the room really quickly? The Earth does the same thing - even though we can't see it happening because it's so high up. The air up there moves in big circles around the Earth, kind of like a Ferris wheel that goes all the way around the world.
But why does it do that? Well, it's all because of the Sun. The Sun heats up the Earth and makes it warm, and the hot air rises up into the sky. When the air gets high enough, it starts to cool off and sink back down to Earth. This creates a big loop of air that moves all around the world - and that's the Brewer-Dobson circulation.
And why is it important? Because it helps move something called ozone around too. Ozone is a special gas that helps protect us from the Sun's harmful rays. By moving ozone around the Earth, the Brewer-Dobson circulation helps keep us safe and healthy.