Last year was a record-breaking one for Operation IceBridge, NASA’s aerial survey of the state of polar ice. For the first time in its nine-year history, the mission, which aims to close the gap between two NASA satellite campaigns that study changes in the height of polar ice, carried out seven field campaigns in the Arctic and Antarctic in a single year.
In total, the IceBridge scientists and instruments flew over 214,000 miles, the equivalent of orbiting the Earth 8.6 times at the equator.
“A big highlight for 2017 is how we increased our reach with our new bases of operations and additional campaigns,” said Nathan Kurtz, IceBridge’s project scientist and a sea ice researcher at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “In the Arctic, we flew out of Svalbard for the first time, expanding our coverage of the Eastern Arctic Ocean. And with our two Antarctic aircraft campaigns from Argentina and East Antarctica, we’ve flown over a large area of the Antarctic continent.”
The expanding sets of measurements collected by IceBridge will continue to be invaluable for researchers to advance their understanding of how the Greenland and Antarctic ice sheets are contributing to sea level rise and how the changing polar sea ice impacts weather and climate. For example, in 2017, scientists worldwide published studies that had used IceBridge data to look at ways to improve forecasts of sea ice conditions and to use satellites to map the depth of the layer of snow on top of sea ice, a key measurement in determining sea ice volume.
Regarding research on ice sheets and glaciers, 2017 saw further integration of Operation IceBridge’s ice height measurements into decades-long records that combine airborne and satellite data, as well as the use of combinations of datasets from multiple IceBridge instruments, including its radars and laser altimeter, into products such as an improved map of the bedrock underneath Greenland’s ice sheet, and studies that looked at the evolution of glaciers.
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