Winds: Local and Global
By: Vivianny C.
General Info On Wind
Wind is the sideways movement of the air. Air always moves from an area of high pressure to areas with low pressure. Wind is caused by the unequal heating on Earth and also because of the unequal air pressure on Earths surface. Another fact is that the name of the wind tells you what direction the wind is coming from.
Local Winds
Definition / How Local Winds are Created
Local winds are over a short distance or area. This is caused because of the uneven heating of Earth's surface.
Land Breezes
Land Breeze is a wind that blows from the land and towards a body of water. These land breezes happen during the night when the land is cooler.
Sea Breezes
Sea breeze is a wind that blows from a lake, or an ocean (sea).In the day when the sea is cooler this is when the sea breezes happen.
Global Winds
Global Winds happen over a long distances, all over the world. These winds happen because of the uneven heating of the Earth's surface. Also because of the unequal air pressure. Global winds blow in the same direction every time.
Doldrums
Doldrums are one of the two calm winds around the Earth. Doldrums are located at 0 degrees latitude right on the equator.
Jet Streams
This type of global wind is a very strong wind and is in the upper troposphere. Jet streams are about 10 km above Earth's surface. They are also hundreds of kilometers wide. Jet streams can blow from speeds of 200 to 400 kilometers per hour.
Trade Winds
Trade Winds are Between 0 degrees and 13 degrees latitude. This wind blows steadily to the east. This is a type of global wind and it blows in the Northern Hemisphere toward the equator.
Polar Easterlies
These wind blows from the east to the west. Polar Easterlies are located at 60 degrees latitude to above. The Polar Easterlies blow from the poles and curve eastward.