00:01
Hi everyone, so for this problem, we are going to look at the coriolis effect, and then we're also going to look at how gyres are formed from the coriolis effect.
00:11
So first, let's take a look at a sphere, and we are going to call this earth.
00:16
Now we all know that the earth spins, and because the earth is traveling, there's going to be wind moving across it.
00:26
Now, if we pretend that this middle part is the equator and the top parts are the poles, you're going to see, that if all of these arrows are the same distance, it's going to take one, two, three, four, five, six arrows to travel across the equator, and only two arrows to travel across the poles.
00:44
So this means that if all of these are traveling at a greater distance, that these arrows in the center are going to be moving faster.
00:53
They have much more distance to cover than just the two arrows near the poles, which are going to be moving slower.
01:00
So for wind, wind is going to be traveling faster near the equator than at the poles, just by how much distance it actually has to cover.
01:10
So now if we flatten the earth and look at a very interpretive map, and we're going to look at some wind.
01:18
Now as wind travels, it's moving very fast across the equator.
01:24
As it gets pulled down, maybe by a gust, it's going to start slowing down as by the poles, it's going to start slowing down as by the poles.
01:31
Not moving nearly as quickly.
01:35
This means that as it gets pulled, it's actually going to slow down and start to form in a circular motion.
01:43
Now, because we are in the southern hemisphere down here, that circular motion is going to go clockwise because it's starting quickly at the equator and getting pulled down in this motion here.
02:01
Now the opposite's going to happen in the hemisphere.
02:06
As the wind travels, it's going to get pulled up by a gust and then start to slow down.
02:14
As it slows down, it's going to form that circular motion...