28 Aug '15, 9pm

We studied Greenland from the air to prepare for our global ice sheet mission: #EarthRightNow h…

We studied Greenland from the air to prepare for our global ice sheet mission: #EarthRightNow h…

Earlier this month, a NASA instrument nestled in the belly of a small plane flew over Greenland’s ice sheet and the Arctic Ocean’s icy waters. Flying above creviced glaciers, chunks of ice floating in melt ponds, and the slushy edges of the ice sheets, the instrument used a rapidly firing laser to measure the elevation of the surface below. The three-week airborne campaign’s goal was to verify how the green laser light interacts with different types of snow and ice. Then, when the Ice, Cloud and land Elevation Satellite-2, or ICESat-2, launches with a similar green laser aboard, scientists can gather precise information to tackle questions about Earth’s frozen regions — including how meltwater from ice sheets is contributing to sea level rise. "Ice sheets like East Antarctica, West Antarctica or Greenland — these are big places where just a little bit of change over that m...

Full article: http://climate.nasa.gov/news/2332/

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We went into the field to study #sealevelrise from Greenland's surface melt: #EarthRightNow htt…

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