Signatur:
ZSP-201-77/18
In:
CRREL Report, 77-18
Beschreibung / Inhaltsverzeichnis:
Abstract: Models originally developed to describe the arching and the movement of granular materials through hoppers or chutes are applied to the arching and drift of pack ice in straits and gulfs having lengths of 50 to 500 km. Verification of the usefulness of the models is attempted by making comparisons with ice deformation patterns as observed via satellite imagery in the Bering Strait region and in Amundsen Gulf. The results are encouraging in that there is good correspondence between observed arching and lead patterns and those predicted by theory. In addition, values determined via the model for the angle of internal friction (≈ 30° to 35°) and the cohesive strength per unit thickness (≈ 2000 N/m) are similar to values obtained by other approaches. It is estimated that if the wind velocity parallel to the Bering Strait exceeds ≈ 6 m/s, there will be ice flow through the strait.
Materialart:
Schriftenreihen ausleihbar
Seiten:
iii, 11 Seiten
,
Illustrationen
Serie:
CRREL Report 77-18
URL:
https://hdl.handle.net/11681/9517
Sprache:
Englisch
Anmerkung:
CONTENTS
Abstract
Preface
Introduction
Theory
Limiting span of an arch
Flow of pack ice through converging channels
Stoppage of flow
Applications
St. Lawrence
Amundsen Gulf
Bering Strait
Conclusion
References
Standort:
AWI Archiv
Zweigbibliothek:
AWI Bibliothek
