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What causes winds? Wind is the movement of air from high to low pressure Winds are caused by differences in air pressure. Differences in air pressure are caused by unequal heating of the atmosphere. Cool air has higher pressure Warm air has low pressure Most importantly, wind travels from areas of high pressure to areas of low pressure! Coriolis Force High Pressure Wind Low Pressure Copyright © 2010 Ryan P. Murphy The Jet Stream: Any of the high-speed, highaltitude air currents that circle the earth in a westerly direction. Copyright © 2010 Ryan P. Murphy Flying times can be significantly shorter going from California to New York than vice versa because of the Jet Stream (100+kph) Copyright © 2010 Ryan P. Murphy Jet Stream: Like the ocean current in the movie except in the air. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Sea Breeze (Day): The breeze that blows from the sea toward the land during the day. Copyright © 2010 Ryan P. Murphy Caused by air rising over the warmer land (day) and is replaced by cooler air from above the sea. Copyright © 2010 Ryan P. Murphy Land Breeze (Night): The breeze that blows from the land toward the sea. Copyright © 2010 Ryan P. Murphy Land Breeze (Night): The breeze that blows from the land toward the sea. ◦ High specific heat of water slowly releases stored energy from the day during the night making the water warmer than the land. Copyright © 2010 Ryan P. Murphy Land Breeze (Night): The breeze that blows from the land toward the sea. ◦ High specific heat of water slowly releases stored energy from the day during the night making the water warmer than the land. Copyright © 2010 Ryan P. Murphy Land Breeze (Night): The breeze that blows from the land toward the sea. ◦ High specific heat of water slowly releases stored energy from the day during the night making the water warmer than the land. Copyright © 2010 Ryan P. Murphy Land Breeze (Night): The breeze that blows from the land toward the sea. ◦ High specific heat of water slowly releases stored energy from the day during the night making the water warmer than the land. Copyright © 2010 Ryan P. Murphy Which is a sea breeze and which is a land breeze? Copyright © 2010 Ryan P. Murphy Which is a sea breeze and which is a land breeze? Copyright © 2010 Ryan P. Murphy Which is a sea breeze and which is a land breeze? Copyright © 2010 Ryan P. Murphy Which is a sea breeze and which is a land breeze? Copyright © 2010 Ryan P. Murphy Which is a sea breeze and which is a land breeze? Copyright © 2010 Ryan P. Murphy