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Record #164662:

Modeling giant-iceberg drift under the influence of sea ice in the Weddell Sea, Antarctica / Christopher Lichey, Hartmut H. Hellmer.

Title: Modeling giant-iceberg drift under the influence of sea ice in the Weddell Sea, Antarctica / Christopher Lichey, Hartmut H. Hellmer.
Author(s): Lichey, Christopher.
Hellmer, Hartmut H.
Date: 2001.
In: Journal of Glaciology. (2001.), Vol. 47(158) (2001)
Abstract: Examines relative importance of atmosphere, ocean and sea-ice forces acting on a 'giant' iceberg (edges longer than 10 nautical miles (18.5 km)) drifting through the Weddell Sea. Presents model describing iceberg motion in ice covered seas and describes sources of forcing data, i.e., ocean velocity, sea ice concentration, thickness and drift velocity and wind velocity. Describes a series of simulations over periods >2 years examining influence of ice strength and time of year and relative importance of forcings. Compares model results with observed drift of iceberg C-7 during 1985-93. Finds interaction between iceberg and sea-ice important when sea-ice concentration is high because of ability to lock in icebergs and collect wind momentum over a huge area. Identifies a critical region in front of Brunt Ice Shelf where timing of iceberg's arrival largely determines its fate. Lists improvements that would reduce differences between model and observations.
Notes:

Journal of Glaciology. Vol. 47(158) :452-460 (2001).

Keywords: 551.32 -- Glaciology.
551.326.14 -- Floating ice, movement.
551.326.6 -- Icebergs.
519.673 -- Modelling.
E6 -- Glaciology: floating ice.
(*7) -- Antarctic regions.
(*826) -- Weddell Sea.
SPRI record no.: 164662

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520 3# ‡aExamines relative importance of atmosphere, ocean and sea-ice forces acting on a 'giant' iceberg (edges longer than 10 nautical miles (18.5 km)) drifting through the Weddell Sea. Presents model describing iceberg motion in ice covered seas and describes sources of forcing data, i.e., ocean velocity, sea ice concentration, thickness and drift velocity and wind velocity. Describes a series of simulations over periods >2 years examining influence of ice strength and time of year and relative importance of forcings. Compares model results with observed drift of iceberg C-7 during 1985-93. Finds interaction between iceberg and sea-ice important when sea-ice concentration is high because of ability to lock in icebergs and collect wind momentum over a huge area. Identifies a critical region in front of Brunt Ice Shelf where timing of iceberg's arrival largely determines its fate. Lists improvements that would reduce differences between model and observations.
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650 07 ‡a519.673 -- Modelling.‡2udc
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651 #7 ‡a(*7) -- Antarctic regions.‡2udc
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