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What if the government shutdown forced the closing of the water cycle? A thought experiment Douglas Miller – UNC Asheville

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Presentation on theme: "What if the government shutdown forced the closing of the water cycle? A thought experiment Douglas Miller – UNC Asheville"— Presentation transcript:

1 What if the government shutdown forced the closing of the water cycle? A thought experiment Douglas Miller – UNC Asheville http://cdn.abclocal.go.com/images/kgo/cms_exf_2007/news/local/san_francisco/9270008_600x338.jpg

2 Outline What is a thought experiment? Impact of water vapor source shutdown Global circulation Synoptic scale weather Hurricanes Tornadoes

3 Outline What is a thought experiment? Impact of water vapor source shutdown Global circulation Synoptic scale weather Hurricanes Tornadoes

4 What is a thought experiment?

5 Our thought experiment Government shutdown  shutdown of water vapor-making processes

6 Stepped Art Fig. 2-3, p. 30

7 Our thought experiment Government shutdown  shutdown of water vapor-making processes Not allowed… liquid  vapor ice  vapor evaporation (or transpiration) sublimation X

8 Our thought experiment Government shutdown  shutdown of water vapor-making processes X X

9 Our thought experiment Within one week, water vapor would reach a minimum value no more cloud production  no more precipitation X X

10 Outline What is a thought experiment? Impact of water vapor source shutdown Global circulation Synoptic scale weather Hurricanes Tornadoes

11 Impact of water vapor source shutdown on global circulation

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13 X reduced increased

14 Impact of water vapor source shutdown on global circulation X X reduced increased

15 Impact of water vapor source shutdown on global circulation

16 Would the global circulation still happen? Yes, likely weaker

17 Outline What is a thought experiment? Impact of water vapor source shutdown Global circulation Synoptic scale weather Hurricanes Tornadoes

18 Impact of water vapor source shutdown on synoptic scale weather

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22 Would the synoptic scale weather still happen? Yes, likely weaker

23 Outline What is a thought experiment? Impact of water vapor source shutdown Global circulation Synoptic scale weather Hurricanes Tornadoes

24 Impact of water vapor source shutdown on hurricanes

25 http://people.cas.sc.edu/carbone/modules/mods4car/tropcycl/pages/easterlywave.html

26 Impact of water vapor source shutdown on hurricanes

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29 Ivan, Sept. 2004 Would hurricanes still happen? No!!!

30 Outline What is a thought experiment? Impact of water vapor source shutdown Global circulation Synoptic scale weather Hurricanes Tornadoes

31 Impact of water vapor source shutdown on tornadoes http://okcstormwatcher.wordpress.com/2011/04/27/tornado-emergency-in-tuscaloosa-alabama/

32 Impact of water vapor source shutdown on tornadoes

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35 Would tornadoes still happen? No!!!

36 The end of our thought experiment


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