Notes: Wind Name ________________ I. Air moves from areas of ______________ pressure to areas of ____________pressure. • This movement of the air is the ________________. II. Differences in air pressure are caused by __________________________________ of Earth’s surface by the sun. • Therefore, the sun and solar energy is the ultimate cause of the wind. III. Wind speed is measured using an _____________________. The faster it spins, the faster the wind. Wind direction is measured with a _______________________. IV. Local Winds A. The land heats and cools _______________than the sea. Water retains heat ________________ than land. Water takes longer to heat and cool. B. This causes temperature differences between the land and the sea, which leads to a thermal circulation (or wind _________________________________________________________.) 1. Sea Breeze- - During the ___________, the land heats up _____________, the hot air ________________, creating an area of __________________pressure. Wind blows __________________________ to the _______________ 2. Land Breeze- •At ____________, the ___________ cools off ____________ than the sea. Cooler air ________________ creating an area of _________________ pressure. Wind blows ________________________________. This is a land breeze. IV. Global Winds A. The uneven heating of the surface of Earth causes differences in _______________ in the air, which results in ______________________________ in our atmosphere. D. E. F. G. B. As the warm, moist air rises, it creates a zone of low pressure, clouds, and precipitation along the ______________________. As that warm air rises, it eventually reaches the ________________________ and can rise no higher. It spreads outwards towards the poles. C. As it spreads, it cools and sinks back down to the surface at about ________° north & south of the equator. This sinking air produces areas of ___________________________ with drier conditions. Some of this air, as it sinks, moves back towards the equator. This air flowing back towards the equator produces what is known as the _____________________________. The area near the equator where these winds die out is referred to as the ____________________. Winds traveling along the surface of Earth from ____________° north & south of the equator are called ____________________________. They flow from the west to the east because the original northward wind becomes curved due to the ___________________________. The air currents moving along the surface of Earth from the ____________________ north & south of the equator, flow from east to west and are referred to as the _____________________________. Label the winds below: Coriolis Effect Because of the_____________ ___________, any freely moving object or fluid will appear to: Turn to the ____________of its direction of motion in the _______________ Hemisphere Turn to the ___________ of its direction of motion in the _______________ Hemisphere. This is what causes the Westerlies to curve and flow from the WEST to EAST. Otherwise the wind would flow directly south to north. • This causes winds to travel _____________________around _________ pressure systems in the Northern Hemisphere, and _____________________________in the Southern Hemisphere. • __________ pressure winds travel in the opposite direction (________________________ in the Northern Hemisphere and ____________________ in the Southern Hemisphere).