Week 7: Extreme Weather

Beschreibung

Extreme weather events linked - how climate impacts extreme weather events
Emilie Perreault
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Emilie Perreault
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Zusammenfassung der Ressource

Week 7: Extreme Weather
  1. Disasters
    1. Increase in frequency
      1. Cost increase as frequency increase
        1. Vulnerability increases with poverty, limited access to services and resources
        2. Rates Overtime
          1. 0.07 degrees per decade since 1880
          2. Heatwaves
            1. Increase due to high pressure, trapped air from Climate change
              1. Increased severity in urban areas, increased frequency
              2. Risk for anyone in heat
                1. Heat exhaustion, heat stroke
              3. Precipitation Events
                1. Heavy rain caused by snowmelt, glacial outburst, coastal storms
                  1. Flooding
                  2. Droughts
                    1. Crop failure, soil erosion, dust storms, decreased water supplies,
                      1. Fires
                    2. Future
                      1. More rain in some areas, less in others
                        1. Timing and extent changes
                          1. More intense storms, less frequently
                      2. Ocean
                        1. Aborbing heat
                          1. Delay impact of rising temperatures
                          2. HIGH specific heat
                            1. Circulation patterns
                              1. Monsoons
                                1. Seasonal reversals of wind direction carrying wind and water to places that need it
                                2. El Nino
                                  1. Reversal pacific Tradewinds, warm water redistribution
                                  2. Transport of cold and warm water
                                    1. Regulation of global cliamte
                                3. Hurricanes
                                  1. Wind, rain, flooding, storm surge
                                    1. Post hurricane: rebuilding, infrastructure, decrease in human wellbeing
                                    2. Caused by high humidity, no wind sheer, low pressure
                                      1. Climate : storms retain higher destructive power for longer time
                                      2. Sea ice melt
                                        1. Raising sea level, extinction of small island nations, floods, storm surge
                                          1. Polar vortex
                                          2. Permafrost melt
                                            1. Caused by warming
                                              1. Increase GHG, warming, toxic mercury release
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