The golfball model and the purpose of drumlin formation

• Autorzy: Smalley J. , Lu P. , Jefferson F.
• Języki publikacji: EN

Abstrakty

EN

The purpose of drumlin formation is to facilitate glacier flow. Drumlins form in a deforming layer between ice and ground, they produce a pimpled ground surface which causes less drag in the flowing system, after the fashion of the Prandtl effect which reduces boundary layer detachment (as in the flying golf ball). This pimpled surface has self-organising properties and this causes the development of a low drag situation. The drumlin field is the critical phenomenon; the formation of individual drumlins is a small part of the overall effect.

Słowa kluczowe

EN

drumlin formation; subglacial deforming layer; gol-fball model; self-organisation; sand heapanalogy; Turing instability

• Wydawca: Institute of Geological Science Polish Academy of Science
• Czasopismo: Studia Quaternaria
• Rocznik: 2000
• Tom: Vol. 17
• Strony: 29--33
• Opis fizyczny: Bibliogr. 21 poz.

Twórcy

autor

Smalley J.

autor

Lu P.

autor

Jefferson F.

• GeoHazards Group, Faculty of Construction & the Environment, Nottingham Trent University, Nottingham