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Thread: NASA watching Greenland melt

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    Franken-Stein 2020 excalibur's Avatar
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    Quote Originally Posted by excalibur View Post
    From your link:

    If climate changes, the surface mass balance may change such that it no longer matches the calving and the ice sheet can start to gain or lose mass. This is important to keep track of, since such a mass loss will lead to global sea level rise. As mentioned, satellites measuring the ice sheet mass have observed a loss of around 200 Gt/year over the last decade.
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    If climate changes, the surface mass balance may change such that it no longer matches the calving and the ice sheet can start to gain or lose mass. This is important to keep track of, since such a mass loss will lead to global sea level rise. As mentioned, satellites measuring the ice sheet mass have observed a loss of around 200 Gt/year over the last decade.

    Doncha just love it when they miss the important stuff?trump lips.jpg
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    RNG
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    What I love, is that with a little digging the English version of that site can be found.

    The results are from, get this, A FUCKING COMPUTER MODEL.

    You gotta love it.

    https://www.dmi.dk/en/groenland/maal...e-mass-budget/

    That's the joke part. The serious part is that again, a poster doesn't read their sources. Land mass balance does not mean total ice, it is the proportion of ice on land vs floating ice. From the same paper:

    The figure below shows the total daily contribution from all points on the ice sheet (top) and the same accumulated from September 1st to now (bottom). The blue curves show this season’s surface mass balance in gigatons (Gt; 1 Gt is one billion tons and corresponds to 1 cubic kilometer of water), and for comparison the mean curves from the historical model run are shown with two standard deviations on either side. Note that the accumulated curve does not end at 0 at the end of the year. Over the year, it snows more than it melts, but calving of icebergs also adds to the total mass budget of the ice sheet. Satellite observations over the last decade show that the ice sheet is not in balance. The calving loss is greater than the gain from surface mass balance, and Greenland is losing mass at about 200 Gt/yr.
    Thanks from April15 and BigLeRoy

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