Global wind pattern?

Question

Again my teacher asked us to do an outline on all our exam notes and she gave a word "Global Wind Pattern" and I can't seem to find it anywhere. Please Help!

Answer 1

don't forget to mention the doldrums, which are located near the equator and have no air move ment to the sides. all of the air in that area moves straight up.

Answer 2

Global Winds are global circulations around the world. The winds that play a role in global winds are Trade Winds, Westerlies and Polar winds. These winds form from pressure change as latitude changes. The Global Winds are very important because they regulate the world weather, they signal an El Nino formation, they help move ocean currents, and much more. They come from three different circulation cells and the winds circulate because of the Coriolis effect. I have give you a site for more information Global Winds becuase they are huge field in weather.

http://kids.earth.nasa.gov/archive/nino/...

Answer 3

Global wind patterns refers to the three wind systems i.e.,tropical trade winds,mid-latitude westerlies and polar easterlies ,blowing in each hemisphere.More details are given below.

Hot air rises at the equator and travels north and south.When it reaches latitude 30 degree north and south,known as the horse latitudes,it sinks,creating high pressure areas.Some of this air travels back towards the equator,and these air flows are known as the trade winds.They die out at the equator,creating an area of calm,light winds known as the doldrums.

The westerlies are east-moving winds that blow from the horse latitudes  towards the poles.

At around 60 degree north and south, the westerlies meet the polar easterlies which are cold winds blowing out from high pressure areas at the poles.The westerlies and polar easterlies meet at the polar front.The differnce in temperature causes warmer air to rise and most of it goes back towards the equator.

The air circulation involving the trade winds is called Hadley cell,that involving  mid-latitude westerlies is called Ferner cell and that involving polar easterlies is called polar cell.

Answer 4

If the Earth didn't rotate, you'd have 3 Hadley Cells in each hemisphere; air rising at the Equator, sinking at about latitude 30, rising at about lat. 45 and sinking near the poles.  The Earth's rotation causes air near the Equator to blow from the east, in mid-latitudes from the west and from the east near the poles.  The sinking air at 30 degrees is why all the world's deserts are at these latitudes in both hemisphere; in sinking air, moisture doesn't condense.