Logo  
Studia Quaternaria
Volume 17 (2000)

Abstract
The golf­ball model and the purpose of drumlin formation

Ian J. Smalley, Ping Lu, Ian F. Jefferson

Abstract
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.

Keywords: drumlin formation, sub­glacial deforming layer, golf­ball model, self­organisation ,sand heapanalogy, Turing instability.

Click (or shift click if you are using Netscape) here to download zipped pdf file containing full text. File size: 160kB

Editors

Editor-in-Chief: Tomasz Goslar
Co-Editors: Małgorzata Latałowa
Wojciech Stankowski
Krystyna Szeroczyńska
Secretary Mariusz Lamentowicz