16. movement of air notes
- 2. 1. Wind is caused by the uneven heating of the Earth and its atmosphere 2. These temperature differences lead to the creation of high pressure and low pressure areas 3. Wind – the movement of air from an area of high pressure to an area of low pressure Wind Formation:
- 3. 1. Tilt in orbit around the sun 2. Curved surface of the Earth 3. Equator receives the most radiation, poles receive the least Cause ofTemperature Differences:
- 4. 1. Warm air is less dense than cold air so it rises 2. Cold air sinks and moves along the Earth’s surface Density of Air:
- 5. The tendency of a moving object to follow a curved path rather than a straight one due to Earth’s rotation Only perceived, the object/air is moving along a straight line, but the air is moving underneath it Coriolis Effect:
- 7. Windless zone of the equator due to hot air rising straight up Doldrums:
- 8. From the equator to 30 degrees latitude North or South, air descending on the Earth’s surface creates steady winds TradeWinds:
- 9. From 30 degrees to 60 degrees, wind moves from west to east, responsible for movement of weather in the US Westerlies:
- 10. Cold air that blows from the Northeast to Southwest near the poles Easterlies:
- 13. Narrow belt of strong winds near top of troposphere, blow from west to east, average 60-110 miles per hour, position changes daily and seasonally, major effect on weather Jet Stream
- 14. Concept: Land heats up and cools down faster than water LocalWinds:
- 15. Wind blowing from land to sea during the night Caused by: • Water cools off slower so it warms the air above it causing it to rise • Air above land moves in to replace it Land Breeze:
- 16. Wind blowing from sea to land during the day Caused by: • Land warmed faster by the sun • Air warmed above land rises • Air above water moves in to replace it Sea Breeze: