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Record #96614:

Super-critical reflection of ocean waves; a new factor in ice-edge dynamics? / Vernon A. Squire.

Title: Super-critical reflection of ocean waves; a new factor in ice-edge dynamics? / Vernon A. Squire.
Author(s): Squire, Vernon A.
Date: 1989.
Publisher: Cambridge: International Glaciological Society
In: Annals of Glaciology. (1989.), Vol. 12 (1989)
Abstract: Discusses factors affecting movement of sea-ice edge on short time-scales and suggests additional mechanism which may be important: radiation-stress contribution, deriving from obliquely incident waves which are totally reflected from ice edge by process analogous to total internal reflection in optics. Such reflection generates both normal and shear forces at ice edge, former tending to compact pack ice and latter to shear absolute edge. Effect is studied using recent data collected during Winter Weddell Sea Project 1986, where it is found that contribution to force balance is significant. For thicker ice and icebergs acted upon by oblique seas, radiation stress-induced force may outweigh more conventional terms in momentum equation.
Notes:

Annals of Glaciology. Vol. 12 :157-161 (1989).

Keywords: 551.466 -- Waves and tides, marine.
551.32 -- Glaciology.
551.326 -- Floating ice.
551.326.14 -- Floating ice, movement.
E6 -- Glaciology: floating ice.
(*80) -- Southern Ocean.
(*826) -- Weddell Sea.
SPRI record no.: 96614

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245 10 ‡aSuper-critical reflection of ocean waves; a new factor in ice-edge dynamics? /‡cVernon A. Squire.
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500 ## ‡aAnnals of Glaciology. Vol. 12 :157-161 (1989).
520 3# ‡aDiscusses factors affecting movement of sea-ice edge on short time-scales and suggests additional mechanism which may be important: radiation-stress contribution, deriving from obliquely incident waves which are totally reflected from ice edge by process analogous to total internal reflection in optics. Such reflection generates both normal and shear forces at ice edge, former tending to compact pack ice and latter to shear absolute edge. Effect is studied using recent data collected during Winter Weddell Sea Project 1986, where it is found that contribution to force balance is significant. For thicker ice and icebergs acted upon by oblique seas, radiation stress-induced force may outweigh more conventional terms in momentum equation.
650 07 ‡a551.466 -- Waves and tides, marine.‡2udc
650 07 ‡a551.32 -- Glaciology.‡2udc
650 07 ‡a551.326 -- Floating ice.‡2udc
650 07 ‡a551.326.14 -- Floating ice, movement.‡2udc
650 07 ‡aE6 -- Glaciology: floating ice.‡2local
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
651 #7 ‡a(*826) -- Weddell Sea.‡2udc
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