Nov. 12 (UPI) — New analysis suggests a valley stretching the length of Greenland’s ice sheet might allow meltwater from the continent’s interior to flow hundreds of miles toward an outlet at Petermann Fjord, positioned on the island’s northern coast.
For years, scientists have been working hard to map the contours of Greenland’s bedrock, which lies beneath thousands of feet of ice.
“It is an extremely hard to observe environment,” Chris Chambers, researcher at Hokkaido University’s Institute of Low Temperature Science, told UPI in an email.
Over the years, scientists have built a relatively detailed map of the continent’s bedrock — and the shape of the ice sheet’s underbelly — by piecing together radar scans captured research aircraft.
Unfortunately, the process of stitching together dozens of radar scans leaves lots of small gaps in the data. Researchers typically rely on mathematical models to fill these gaps.
“The data gaps are