WIND IN THE ATMOSPHERE

THE MOVEMENT OF AIR

• Wind is air movement from an area of higher pressure to to lower pressure.
• Cool air sinks as warm air rises, this is what creates wind.
• The apparent curving of the path of a moving object from an otherwise straight path due to Earth's rotation is called Coriolis Effect

GLOBAL WINDS

• Two factors that produce global winds are high pressure and low pressure.
• The three major global wind systems are the Trade Winds, Westerlies, Polar Easterlies.
• The jet stream is narrow belts of high speed winds that blow from west to east, between 7km and 16km above Earth's surface.

LOCAL WINDS

• A Sea breeze is a wind coming from an ocean, lake, or a body of water.
• A land breeze is when the wind blows from land to the water.
• A valley breeze is when the breeze starts at the valleys and goes up the slopes
• A mountain breeze is when the breeze starts up in the mountains and flows down toward the valleys.