15. 지구기후역사-현재-미래.ppt

19

Upload: s-jun-gim

Post on 05-Nov-2015

226 views

Category:

Documents


2 download

TRANSCRIPT

  • 45 - , . . - .

  • - ,,,, ( , ) - - - ( ) - - -

  • () (150~200) - , , , - , (Proxy data) - (ice , ) - ( , ) - ( ) - (, , ) - (, )

  • (250~)

    ,

  • (Paleozoic) (41) - - 30m , (2 8600) - , - , - - : CO2 , , , ,

  • (Mesozoic) ~ (25-14400) - 23oN~23oS , - , (14400-6500) - CO2 4, 100 m - 75%
  • (Pangaea)

  • , 3 , , 1 8

  • (260~1) - 4-5C - 6 5 , 4 (Last Glacial Maximum:LGM) - 20,000 - 3-4km - 120 m , CO2 190ppm - 1km , Why do they end?LGM

  • 14,000 Younger-Dryas( 10,000~8,500BC) - - 4~5oC 8,500BC
  • - 1,500~750BC , 2~3m - 100BC - (150BC-300AD) 25m - 5 - 400~1,200AD - 8~11 (Little Climatic Optimum) - - (600~1200AD) - 13~14 -(Little Ice Age) - 1,500~1,850AD 1oC , 16 - - 1753~1759 , 25% - 1816

  • 2350

    150

    2200 300 -

  • , 4 () . . [] | bcpty

  • 2500

    AD800-900

    * 2003

    - 810 ,860 ,910 ( )

    ( skt blog LasVegasKim.com )

  • 1850 150~200 20 - : 0.74oC (1906-2005) - - ( ) - , - - - 1912~2008 1.7oC

  • (A1B ) (A1B )20(1979-2000) A1B 21(2079-2100) (21%), WMO (18.7%26.6%) , 9 , Heat Potential , 1000hPa .

    ********A top observatory that has been measuring sun cycles for over 200 years predicts that global temperatures will drop by two degrees over the next two decades as solar activity grinds to a halt and the planet drastically cools down, potentially heralding the onset of a new ice age. Current.com*A top observatory that has been measuring sun cycles for over 200 years predicts that global temperatures will drop by two degrees over the next two decades as solar activity grinds to a halt and the planet drastically cools down, potentially heralding the onset of a new ice age. Current.com*A top observatory that has been measuring sun cycles for over 200 years predicts that global temperatures will drop by two degrees over the next two decades as solar activity grinds to a halt and the planet drastically cools down, potentially heralding the onset of a new ice age. Current.com*20(1979-2000) A1B 21(2079-2100) (21%), WMO (18.7%26.6%) , 9 , Heat Potential , 1000hPa .

    *