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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
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
Where the Hell is Matt?

  • http://www.youtube.com/watch?v=zlfKdbWwruY


June july itcz
June–July ITCZ

Figure 6.11


Seasonal patterns
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



Global climate regions
Global Climate Regions

Figure 2.13

Climograph


Climographs
Climographs

Figure 8-6


Climate change detection
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.)


YES!

Figure 10.30





Time Series of

Cryospheric Change:

1950-2005

Cryosphere has exhibited

significant changes since 1950,

particularly in the northern

hemisphere.


Chasing ice
Chasing Ice

  • http://www.chasingice.com/


Climate change attribution
Climate Change Attribution

  • Why is the climate changing?



What are some anthropogenic influences on climate1
What are some Anthropogenic Influences on Climate?

  • Greenhouse gases

  • Aerosols – suspended particulates

  • Land use/land cover change


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.


Life Magazine (1962) middle of Pacific Avenue


Natural forcings
Natural middle of Pacific Avenue Forcings?

  • Solar Irradiance

  • Volcanoes

  • Changes in Oceanic and Atmospheric Circulation


No denying that the anthropogenic middle of Pacific Avenue

warming is playing a role:

Question is how much?


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