Hidden Worlds Beneath Greenland’s Ice

Greenland landscapes beneath Greenland’s massive Jakobshavn Glacier.

A red line shows the main channel, and the elevation ranges from 300 to 1,300 meters above sea level, with higher elevations shown in white and brown and lower elevations in yellow and green.

The study, published in Geophysical Research Letters, reveals an extensive network of ancient rivers. These rivers predate Greenland's ice sheet by more than three million years and once drained a region that's about the size of the Ohio River basin.

Some of those river channels were more than 7 miles (11 kilometers) wide and 4,500 feet (1.3 kilometers) deep. While that’s not as big as the Grand Canyon - which reaches 18 miles (29 kilometers) wide and more than 6,000 feet (1.8 kilometers) deep - it is bigger than a megacanyon discovered beneath Greenland’s ice.

Via nationalgeographic.com

Related post:
- First Map Of Thawed Areas Under Greenland Ice Sheet

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This map has been created using The Global environmental stratification. The Global environmental stratification (GEnS), based on statistical clustering of bioclimate data (WorldClim). GEnS, consists of 125 strata, which have been aggregated into 18 global environmental zones (labeled A to R) based on the dendrogram. Interactive map >> Via www.vividmaps.com Related posts: - Find cities with similar climate 2050 - How global warming will impact 6000+ cities around the world?

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Ecoclimax

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