The shortwave changes are larger than the longwave changes and results in a positive

Discussion in 'Environment' started by ScienceRocks, Jan 27, 2011.

  1. ScienceRocks
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    ScienceRocks Democrat all the way!

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    http://www.google.com.au/url?sa=t&s...99TtAg&usg=AFQjCNHu6QfBeGZOdqYDhNhsgPzz264wmQ

    The shortwave changes are larger than the
    longwave changes and results in a positive decadal
    net radiation changes in most latitude zone
    between 60oS and 40oN. The net radiation
    changes are negative for latitude zones between
    40oN and 60oN. For the tropics at a whole, the
    longwave radiation has increased by 1.6 Wm-2, the
    shortwave radiation has decreased by 3.0 Wm-2,
    and the net radiation has increased by 1.4 Wm-2
    between late 80s’ and the mid 90’s. For the near
    global mean, the changes are slightly smaller. The
    longwave radiation has increased by 1.3 Wm-2, the
    shortwave radiation has decreased by 2.1 Wm-2,
    and the net radiation has increased by 0.7 Wm-2
    during the same two periods


    http://www.physicalgeography.net/fundamentals/7i.html

    Shortwave radiation from the Sun enters the surface-atmosphere system of the Earth and is ultimately returned to space as longwave radiation (because the Earth is cooler than the Sun). A basic necessity of this energy interchange is that incoming solar insolation and outgoing radiation be equal in quantity. One way of modeling this balance in energy exchange is described graphically with the use of the following two cascade diagrams.
     
    Last edited: Jan 27, 2011
  2. Old Rocks
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    Old Rocks Diamond Member

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    Looks like there will be a significant increase in warming when incoming shortwave returns to normal.
     
  3. uscitizen
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    uscitizen Senior Member

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    News on shortwave is interesting. Various perspectives from around the world.
     

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