Supraglacial channel

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    Russell Glacier, Greenland

    Each ridge on the channel sides represents about a days worth of melt from the water flow. For scale, the channel is about 8-10 m deep here. Upstream lies a huge lake ~3km^2 in a depression on the ice-sheet surface. As the stream keeps eroding down, it would eventually cause the lake to drain rapidly within a matter of hours. The stream eventually flows to a huge moulin, where it then likely reaches the bed of the ice sheet, ~1000 m below.

    Lake-drainage events like these are common, and are currently being studied by scientists at Aberystwyth and Swansea Universities.

    Aryn Toombs, we αre nowhere, 제발 저리가, paint party, and 104 other people added this photo to their favorites.

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    1. xilax~~amarres larguées~~ 26 months ago | reply

      Thank you for posting to
      World Waterscapes
      World Waterscapes

      please comment on others thanks

    2. PhotoCapturesbyJeffery 4 months ago | reply

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