622 billion tons of new ice

The surface of the Greenland Ice Sheet has gained 622 billion tons of new ice and snow since September 1. This is the most in at least eight years, and is far above the the 1981-2010 average.

Surface Conditions: Polar Portal

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2 Responses to 622 billion tons of new ice

  1. conrad ziefle says:

    The graph says “surface mass balance”. I take that to mean surface of the land ice mass balance, i.e. net gain on the surface of the island. That would be snow on top minus melt water flowing out from the bottom. I don’t know how you would measure the surface of the ice rather than the surface of the land. Do you pick an arbitrary point and call it the surface, and judge everything from that point ( in space, so to speak)? And it changes every year? Or do you measure from the land surface and add and subtract inflows and outflows?

  2. Independent says:

    I’m sure this will be all over the evening news and headlines in the papers…any day now…

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