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Showing 1–3 of 3 results
Advanced filters: Author: Anne Le Brocq Clear advanced filters

  • The bed of the West Antarctic ice sheet is, in places, more than 1.5 km below sea level. Radio-echo sounding data from the Weddell Sea sector of Antarctica reveal a large subglacial basin immediately upstream of the ice sheet’s grounding line, with a steep reverse gradient and a smooth floor.

    • Neil Ross
    • Robert G. Bingham
    • Martin J. Siegert
    Research
    Nature Geoscience
    Volume: 5, P: 393-396

  • Subglacial meltwater channels beneath the Antarctic Ice Sheet have been reported, but the nature and distribution of these meltwater pathways are unclear. Remote sensing observations reveal persistent channelized features beneath the Filchner–Ronne Ice Shelf in West Antarctica, suggesting widespread channelized flow driven by melting.

    • Anne M. Le Brocq
    • Neil Ross
    • Martin J. Siegert
    Research
    Nature Geoscience
    Volume: 6, P: 945-948

  • 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.

    • Hafeez Jeofry
    • Neil Ross
    • Martin J. Siegert
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-9