ナショナルジオグラフィックのインスタグラム(natgeo) - 3月5日 15時00分

Photo by @shonephoto (Robbie Shone) - Surface meltwater cuts channels into the Greenland ice sheet until it reaches a hole in the ice known as a moulin. Exploration of moulins enables scientists to get an interior view of the ice sheet allowing them to better understand the ice-sheet dynamics. View from the air, photo taken near the Jakobshavn glacier close to the coastal town of Ilulissat.

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