Glacial geomorphology

towards a convergence of glaciology and geomorphology

Robert G Bingham, Edward King, Andrew Smith, Hamish Pritchard

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

This review presents a perspective on recent trends in glacial geomorphological research, which has seen an increasing engagement with investigating glaciation over larger and longer timescales facilitated by advances in remote sensing and numerical modelling. Remote sensing has enabled the visualisation of deglaciated landscapes and glacial landform assemblages across continental scales, from which hypotheses of millenial-scale glacial landscape evolution and associations of landforms with palaeo-ice streams have been developed. To test these ideas rigorously, the related goal of imaging comparable subglacial landscapes and landforms beneath contemporary ice masses is being addressed through the application of radar and seismic technologies. Focussing on the West Antarctic Ice Sheet, we review progress to date in achieving this goal, and the use of radar and seismic imaging to assess: (1) subglacial bed morphology and roughness; (2) subglacial bed reflectivity; and (3) subglacial sediment properties. Numerical modelling, now the primary modus operandi of “glaciologists” investigating the dynamics of modern ice sheets, offers significant potential for testing “glacial geomorphological” hypotheses of continental glacial landscape evolution and smaller-scale landform development, and some recent examples of such an approach are presented. We close by identifying some future challenges in glacial geomorphology, which include: (1) embracing numerical modelling as a framework for testing hypotheses of glacial landform and landscape development; (2) identifying analogues beneath modern ice sheets for landscapes and landforms observed across deglaciated terrains; (3) repeat-surveying dynamic subglacial landforms to assess scales of formation and evolution; and (4) applying glacial geomorphological expertise more fully to extraterrestrial cryospheres.
Original languageEnglish
Pages (from-to)327-355
Number of pages29
JournalProgress in Physical Geography
Volume34
Issue number3
DOIs
Publication statusPublished - Jun 2010

Fingerprint

glaciology
geomorphology
landform
ice sheet
glacial landform
landscape evolution
radar
modeling
remote sensing
cryosphere
sediment property
ice stream
hypothesis testing
reflectivity
surveying
glaciation
roughness
visualization
timescale
expertise

Keywords

  • glaciology
  • cryosphere
  • geomorphology
  • Antarctica
  • geophysics
  • radar
  • seismic
  • glacial geomorphology
  • glaciers
  • ice sheets
  • numerical modelling
  • remote sensing

Cite this

Glacial geomorphology : towards a convergence of glaciology and geomorphology. / Bingham, Robert G; King, Edward; Smith, Andrew; Pritchard, Hamish.

In: Progress in Physical Geography, Vol. 34, No. 3, 06.2010, p. 327-355.

Research output: Contribution to journalArticle

Bingham, Robert G ; King, Edward ; Smith, Andrew ; Pritchard, Hamish. / Glacial geomorphology : towards a convergence of glaciology and geomorphology. In: Progress in Physical Geography. 2010 ; Vol. 34, No. 3. pp. 327-355.
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