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the atmosphere (part 2) (changes in cryosphere (reductions in the amount…

- - - - jet streams caused = difference in temp and density between two air masses such as the warm air in mid latitudes and the cold air in polar regions
        
        don't blow in straight line = rotation of earth creates a Coriolis force which cause winds to blow in a spiral
        
        jet streams control the movement of air bodies that create rain such as cyclonic storms
        
        polar regions are warming faster than areas nearer the equator, sot he temp difference that create the jet streams are getting smaller
        
        slower movement = weather systems to remain over an area = longer and more intense weather = prolonged droughts, flood prone rainfall
  - - - higher temp = air may have to move further towards a cold area before water vapour cools enough to condense and fall as rain or snow
- - - - less snow or ice cover = reduces the albedo of the earth surface so less sunlight is reflected away and more is absorbed
        
        causes further heating
  - - - forming ice = reach lower altitudes = warms and melts = may reach sea before melts and produce icebergs = or melts before reaches sea and add to river flow
        
        meltwater from the surface of the glacier = flow down through cracks in ice tot he bottom of the glacier front = move further down the valley