par Fitzsimons, Sean;Lorrain, Reginald
Référence Encyclopedia of Earth Sciences Series, Part 3, page (1101-1105)
Publication Publié, 2011
Article révisé par les pairs
Résumé : The last few decades have seen enormous advances in understanding how glaciers interact with the substrates over which they flow. The central issue in our recently acquired understanding is the role of subglacial water as a means of uncoupling glaciers from their beds whether this is accomplished by rapid sliding, or subglacial sediment deformation. However, we have yet to develop an understanding of how spatial and temporal variability in subglacial processes is translated into the behavior of large glacial systems. Such an understanding is a prerequisite for the development of ice sheet models that parameterize subglacial processes.