Hard rock landforms generate 130 km ice shelf channels through water focusing in basal corrugations

oleh: Hafeez Jeofry, Neil Ross, Anne Le Brocq, Alastair G.C. Graham, Jilu Li, Prasad Gogineni, Mathieu Morlighem, Thomas Jordan, Martin J. Siegert

Format: Article
Diterbitkan: Nature Portfolio 2018-11-01

Deskripsi

Subglacial landforms, formed by glacial processes operating over long timescales, influence ice dynamics. Here, the authors show how mega-scale landforms at an Antarctic ice stream grounding zone modulate basal water flow, causing extensive channels in the ice shelf downstream that may impact its structure.