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Global Climate Change: Detection and Attribution

Global Climate Change: Detection and Attribution. Finish Idealized Global Circulation Model and Global Climates Is the Current Climate Changing? If so, on what evidence? Why? Exam I on Feb 5 ! Review Sheet is Posted. Where the Hell is Matt?. http://www.youtube.com/watch?v=zlfKdbWwruY.

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Global Climate Change: Detection and Attribution

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  1. Global Climate Change: Detection and Attribution • Finish Idealized Global Circulation Model and Global Climates • Is the Current Climate Changing? • If so, on what evidence? • Why? Exam I on Feb 5! Review Sheet is Posted.

  2. Where the Hell is Matt? • http://www.youtube.com/watch?v=zlfKdbWwruY

  3. June–July ITCZ Figure 6.11

  4. Seasonal Patterns Location of the sun’s noon-time vertical rays (i.e., where the sun is directly overhead) helps to control the position of the ITCZ Northern Hemisphere summer, ITCZ and all of the wind and pressure belts migrate to the north North Hemisphere winter, ITCZ and all of the wind and pressure belts migrate to the south

  5. Modified Köppen System Figure 8-4

  6. Global Climate Regions Figure 2.13 Climograph

  7. Climographs Figure 8-6

  8. Climate Change Detection • Is the Earth’s Current Climate Changing? • If so, what evidence can you provide? • (We will discuss the question of attribution in a bit.)

  9. YES! Figure 10.30

  10. YES!

  11. Linear Trend of Annual Temperatures

  12. Observed Variations in the Cryosphere

  13. Time Series of Cryospheric Change: 1950-2005 Cryosphere has exhibited significant changes since 1950, particularly in the northern hemisphere.

  14. Chasing Ice • http://www.chasingice.com/

  15. Climate Change Attribution • Why is the climate changing?

  16. What are some Anthropogenic Influences on Climate?

  17. What are some Anthropogenic Influences on Climate? • Greenhouse gases • Aerosols – suspended particulates • Land use/land cover change

  18. A rectangular piece of coal in a wagon is on display in the middle of Pacific Avenue In Tacoma before the arrival of President Harrison in May, 1891.

  19. Life Magazine (1962)

  20. Natural Forcings? • Solar Irradiance • Volcanoes • Changes in Oceanic and Atmospheric Circulation

  21. No denying that the anthropogenic warming is playing a role: Question is how much?

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