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NASA map reveals hidden valleys beneath Greenland's ice

Original: A new map of the terrain beneath the Greenland Ice Sheet links hundreds of valleys that previous maps missed or left fra

NASA's Earth Observatory has released a new map of the terrain beneath the Greenland Ice Sheet, showing hundreds of valleys that earlier maps missed or depicted only as fragmented pieces. The mapped network links these valleys into connected systems, offering a clearer picture of the bedrock topography hidden under kilometers of ice. Scientists say such detail matters because the shape of the bed influences how the ice sheet flows and responds to warming.

Why now: The new NASA mapping reveals previously unmapped subglacial valley networks relevant to understanding ice sheet dynamics and climate change.

NASAGreenland Ice SheetGreenland

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Evidence

• A new map of the terrain beneath the Greenland Ice Sheet links hundreds of valleys that previous maps missed or left fragmented. https:// science.nasa.gov/earth/earth-o bservatory/uncovering-the-valleys-hidden-below-greenlands-ice/ # Environment # Climate # Science # NASA #… · gclef@vivaldi.net · 3

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