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Solar energy, Uneven Heating of Earth, Wind, and Ocean Currents
- 1. Solar Energy Uneven Heating of Earth CAUSES… Movement of Air Masses
- 2. Sea Breeze Radiation = the transfer of energy though space by electromagnetic waves. Solar (Radiation) Energy
- 3. Sea Breeze What do you notice about the temperatures? Warm Land Cool Water
- 4. Sea Breeze Hot air rises Cool Water Warm Land
- 5. Sea Breeze Hot air rises Cool Water Warm Land
- 6. Sea Breeze Warm air begins to cool as it rises Cool Water Warm Land
- 7. Sea Breeze Warm Air flows to cooler air Cool Water Warm Land
- 8. Sea Breeze Cooled air Sinks b/c it is more dense Cool Water Warm Land
- 9. Sea Breeze Cooled air sinks Hot air rises Wind blows from Cool water to warm land Cool Water Warm Land
- 10. Sea Breeze Cool Water Warm Land
- 11. Land Breeze – At Night
- 12. Land Breeze Now… what's different about the temperatures?
- 13. Land Breeze Now… what's different about the temperatures? When the sun is down, we have cooler LAND and warmer WATER. Warm Water Cool Land
- 14. Land Breeze Warm Water Cool Land
- 15. Land Breeze Heat can be transferred in 3 ways… Conduction, Radiation, Convection The sun provides heat energy called RADIATION and it creates CONVECTION Currents in our atmosphere.
- 16. Label the SEA BREEZE and LAND BREEZE
- 17. Sun’s Rays “Uneven Heating of the Earth due to the curvature of Earth”
- 18. 90° 45° • Larger Angle = More intense heat (hotter) • Acute Angle = less intense heat (cooler) EARTH
- 19. Curved Earth = Sun rays hit Earth at angles 90° Direct Angle = Very intense heat (HOT)
- 20. Curved Earth = Sun rays hit Earth at angles 45° Acute Angle = less intense heat (cooler) 90° 45° Acute Angle = less intense heat (cooler)
- 21. Curved Earth = Sun rays hit Earth at angles Coldest at the Poles 30° 45° Equator is hottest Cooler at angles 90° 45°
- 22. Wind Movement of air from high pressure to low pressure
- 23. Wind moves from High Pressure Low Pressure • Cold Temperature – Molecules closer together – “packed tightly” – More dense = more pressure • Warmer Temperatures – Molecules further apart – “unpacked” – Less Dense = Less Pressure Molecules want to spread out, yet… still same amount!
- 24. Wind blows from cold to warm
- 25. Earth’s Rotation • Earth rotates (spins) on its axis (very fast). • This rotation “pulls” the air as the Earth turns. • This is called the Coriolis Effect!
- 26. Jet Stream – upper level winds • The jet stream is located in the Stratosphere!
- 27. Global Wind Patterns (mid level) “Trade Winds”
- 28. Global Wind Patterns (mid level) “Westerlies” • From which direction are the trade winds blowing in the US? • Which direction are they heading?
- 29. Oceans What effect do they have on Weather?
- 30. Keeps the area around the water cooler (water does not change temperature)
- 31. Ocean Currents move warm water… North England