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Sea ice thickness from space.

Discussion in 'Earth and Environmental Science' started by amusicsite, 26 Apr 2012.

  1. amusicsite

    amusicsite dn ʎɐʍ sᴉɥ┴ Staff Member

  2. amusicsite

    amusicsite dn ʎɐʍ sᴉɥ┴ Staff Member


    Since the break up of the West Antarctic Ice Sheet there has been a 75% increase in Antarctic ice mass loss in the ten years 1996–2006, with glacier acceleration a primary cause.

    Greenland to is finding the glaciers are retreating faster with each year.

    Latest reports say that

    "a devastating six feet of sea-level rise by 2100 — might not be so farfetched after all"

    So the question is how soon will it be before we start noticing this?

    "Global average sea level rose at an average rate of around 1.7 ± 0.3 mm per year over 1950 to 2009 and at a satellite-measured average rate of about 3.3 ± 0.4 mm per year from 1993 to 2009"

    Each year we seem to find we have underestimated the predictions from the past. Finding more and more ways this rapid warming adds more heat and energy into the system accelerating the ice melt.

    So we may have only had a few cm of rise over the last few decades. But what if that changes to a few tens of cm over the next few decades.

    At what level might we start to notice and who gets hit first. What will be the big wake up call that will shock the world? Maybe the flooding by sea water of one of the mayor cities like London, New York, Washington or Tokyo. Maybe when after 2-3 years of this happening abandoning a mayor city? How much rise would you need to trigger one of these types of events?