Call number:
ZSP-201-82/31
In:
CRREL Report, 82-31
Description / Table of Contents:
Information on sea ice conditions in the Bering Strait and the icefoot formation around Fairway Rock, located in the strait, is presented. Cross-sectional profiles of Fairway Rock and the relief of the icefoot are given along with theoretical analyses of the possible forces active during icefoot formation. It is shown that the ice cover most likely fails in flexure as opposed to crushing or buckling, as the former requires less force. Field observations reveal that the Fairway Rock icefoot is massive, with ridges up to 15 m high, a seaward face only 20 degrees from vertical, and interior ridge slopes averaging 33 degrees. The icefoot is believed to be grounded and its width ranges from less than 10 to over 100 m.
Type of Medium:
Series available for loan
Pages:
44 Seiten
,
Illustrationen
Series Statement:
CRREL Report 82-31
URL:
https://apps.dtic.mil/docs/citations/ADA122477
URL:
https://hdl.handle.net/11681/9317
Language:
English
Note:
CONTENTS
Abstract
Preface
Introduction
Bering Strait
Field reconnaissance
Estimation of ice forces on Fairway Rock
1. Creep deformation
2. Crushing failure
3. Flexural failure
4. Forces required to form floating or grounded pressure ridges along therock or to pile ice on the beaches
5. Buckling failure
Driving forces
Angle of internal friction of sea ice
Summary
Literature cited
Appendix A: April 1982 field observations at Fairway Rock
Location:
AWI Archive
Branch Library:
AWI Library
