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Record #96613:

Dynamics of ice-island motion near the coast of Axel Heiberg Island, Canadian high Arctic / William M. Sackinger, M.O. Jeffries, H. Tippens, F. Li, M. Lu.

Title: Dynamics of ice-island motion near the coast of Axel Heiberg Island, Canadian high Arctic / William M. Sackinger, M.O. Jeffries, H. Tippens, F. Li, M. Lu.
Author(s): Sackinger, William M.
Jeffries, M. O.
Tippens, H.
Li, F.
Lu, M.
Date: 1989.
Publisher: Cambridge: International Glaciological Society
In: Annals of Glaciology. (1989.), Vol. 12 (1989)
Abstract: Drift of Hobson's Ice Island has been followed almost continuously since August 1983 by means of satellite-tracked buoys. Describes two movement episodes in 1986: on 6 to 16 May and 14 to 21 June. Each episode is analyzed in terms of forces acting on ice island, including wind shear, water drag and shear, Coriolis force, sea-surface tilt, and pack-ice force. Ice-island movement is generally preceded by offshore surface wind and threshold wind speed of 6 m s⁻¹ appears to be necessary to initiate movement. Angle of 50° between surface wind and direction of movement was noted in one episode. Pack-ice force, which appears to be dominant arresting factor of ice-island movement for these two episodes, varies from 100 to 180° to left of direction of velocity, depending upon whether ice island is accelerating or decelerating.
Notes:

Annals of Glaciology. Vol. 12 :152-156 (1989).

Keywords: 551.326.62 -- Icebergs, tabular.
551.32 -- Glaciology.
551.326 -- Floating ice.
551.326.14 -- Floating ice, movement.
E6 -- Glaciology: floating ice.
(*60) -- Arctic Ocean and adjacent waters.
(*62) -- Canadian Arctic waters.
SPRI record no.: 96613

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245 00 ‡aDynamics of ice-island motion near the coast of Axel Heiberg Island, Canadian high Arctic /‡cWilliam M. Sackinger, M.O. Jeffries, H. Tippens, F. Li, M. Lu.
260 ## ‡aCambridge :‡bInternational Glaciological Society,‡c1989.
300 ## ‡ap. 152-156 :‡bill., diags., maps.
500 ## ‡aAnnals of Glaciology. Vol. 12 :152-156 (1989).
520 3# ‡aDrift of Hobson's Ice Island has been followed almost continuously since August 1983 by means of satellite-tracked buoys. Describes two movement episodes in 1986: on 6 to 16 May and 14 to 21 June. Each episode is analyzed in terms of forces acting on ice island, including wind shear, water drag and shear, Coriolis force, sea-surface tilt, and pack-ice force. Ice-island movement is generally preceded by offshore surface wind and threshold wind speed of 6 m s⁻¹ appears to be necessary to initiate movement. Angle of 50° between surface wind and direction of movement was noted in one episode. Pack-ice force, which appears to be dominant arresting factor of ice-island movement for these two episodes, varies from 100 to 180° to left of direction of velocity, depending upon whether ice island is accelerating or decelerating.
650 07 ‡a551.326.62 -- Icebergs, tabular.‡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(*60) -- Arctic Ocean and adjacent waters.‡2udc
651 #7 ‡a(*62) -- Canadian Arctic waters.‡2udc
700 1# ‡aSackinger, William M.
700 1# ‡aJeffries, M. O.
700 1# ‡aTippens, H.
700 1# ‡aLi, F.
700 1# ‡aLu, M.
773 0# ‡7nnas ‡tAnnals of Glaciology. ‡gVol. 12 (1989) ‡wSPRI-60773
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