Living in a Windy World

By: Meghana Gadde

What is wind

Definition: movement of air

What causes wind?: When the there is uneven heating of the Earth's surface wich cause there to be differences in air pressure. This is what causes wind.

Local Winds

Definition: local winds are winds that blow short distances and a small areas.

Sea brezze

Sea breeze: During the day, the land heats up faster than the ocean(sea). Warm air is less dense and rises to create low air pressure, so then the water is high pressure. Then cooler, blows in from the ocean to make sea breeze.

Land Brezze

Land brezze: During the night, the water heat up faster that land. The cool land air is less dense and sinks to create high pressure. The cooler, high pressure blows away from land

Global Winds

Global winds are winds blow steadily from specific direction over a long distance. Like local winds,global winds are created by unequal heating of Earths surface. But unlike local winds,Global winds occur over a large area.


Near the equator, the sun heats the surface strong. warm air rises steadily,creating an area of low pressure. Cool air mores into the area,bur it warm repidly and rises before it moves very far.There is very little horizontal motion,so the winds near the equator are very weak or no wind at all.

Periling Westerlies

In the mid latitudes between, 30 degrees and 60 degrees north and south winds that blow toward poles are turned toward the east by the the Coriolis effect.Because they blow from east to west,there are called prevailing westerlies.

Polor Easterlies

cold air near the poles sink and floats back towards the lower latitudes.The crolis affect stifts poler winds to the west,producing the polar easterlies.

Jet Stream

About 10km above Earth's surface are bands of high-speed winds called jet streams. These winds are hundreds of kilometer high but only a few kilometers deep.The jet steam generally blows west to east of spreads of 200 to 400km