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The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island

Published online by Cambridge University Press:  27 October 2009

Martin O. Jeffries  and
M. Amanda Shaw
Martin O. Jeffries
Affiliation:
Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska 99775–0800, USA
M. Amanda Shaw
Affiliation:
763 West, 630 South, Orem, Utah 84058, USA
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Abstract

The drift of Hobson's Choice Ice Island from the Arctic Ocean into the channels of the Queen Elizabeth Islands, Northwest Territories, Canadian Arctic, between February 1988 and August 1992, was monitored by a Système Argos satellite-positioning buoy. During the period August 1991 to May 1992, the ice island was imaged by synthetic aperture radar (SAR) aboard the ERS-1 satellite. The buoy data show that Hobson's Choice entered Peary Channel (between Axel Heiberg Island and Ellef Ringnes Island) in October 1988. Subsequently, between mid-August 1991 and November 1991, it drifted rapidly south to Queens Channel (60 km north of Cornwallis Island). The SAR data corroborate the buoy data and also reveal that at least six other ice islands entered the Queen Elizabeth Islands' channels with Hobson's Choice. The SAR imagery also recorded the fragmentation of Hobson's Choice between mid-October and mid-November 1991. The buoy and SAR data are conclusive evidence that ice islands do leave the Arctic Ocean via the northwestern channels of the Canadian Arctic archipelago. The observed drift occurred when there was extensive break-up of fast ice in the inter-island channels caused by above average summer temperatures, in combination with favourable atmospheric circulation and surface winds that drove the ice islands into and through the channels.

Type
Articles
Information
Polar Record , Volume 29 , Issue 171 , October 1993 , pp. 305 - 312
Copyright
Copyright © Cambridge University Press 1993

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References

Bilello, M.A. 1980. Decay patterns of fast ice in Canada and Alaska. In: Pritchard, R.S.Sea ice processes and models. Seattle and London: University of Washington Press: 313–326.Google Scholar
Collin, A.E., and Dunbar, M.J. 1964. Physical oceanography in Arctic Canada. Oceanography and Marine Biology Annual Review 2: 45–75.Google Scholar
Colony, R.L., and Rigor, I.. 1991. Arctic Ocean data buoy program data report for 1 January 1988 to 31 December 1988. Seattle: Applied Physics Laboratory, University of Washington (Technical Memorandum APL–UW TMB–91).Google Scholar
de Bastiani, P. 1990. Canadian Arctic marine ice atlas, winter 1987–88 (with perspectives from 1986–87 and 1988–89). Ottawa: Canadian Coast Guard (Transport Canada Report No. TP–10224).Google Scholar
Edlund, S.A., and Alt, B.. 1989. Regional congruence of vegetation and summer climate patterns in the Queen Elizabeth Islands, Northwest Territories, Canada. Arctic 42 (1): 3–23.Google Scholar
Environment Canada. 1988. Climate Perspectives: A Weekly Review of Canadian Climate 10, 29–33.Google Scholar
Environment Canada. 1991. Climate Perspectives: A Weekly Review of Canadian Climate 13, 28–32.Google Scholar
Hattersley-Smith, G. 1963. The Ward Hunt Ice Shelf: recent changes at the ice front. Journal ofGlaciology4 (34): 415–424.CrossRefGoogle Scholar
Hobson, G.D., and the Canadian Ice Island Scientific Party. 1989. Ice island field station: newfeatures of the Canadian polar margin. Eos, Transactions of the American Geophysical Union 70 (37): 833, 835,838–839.CrossRefGoogle Scholar
Jeffries, M.O. 1992. Arctic ice shelves and ice islands: origin, growth and disintegration, physical characteristics, structural-stratigraphic variability and dynamics. Reviews of Geophysics 30 (3): 245–267.CrossRefGoogle Scholar
Jeffries, M.O. and Sackinger, W.M.. 1990. Ice island detectionand characterization with airborne SAR. Journal of Geophysical Research 95 (C4): 5371–5377.CrossRefGoogle Scholar
Jeffries, M.O. and Serson, H.V.. 1983. Recent changes at the front of Ward Hunt Ice Shelf, Ellesmere island, N.W.T. Arctic 36 (3): 289–290.CrossRefGoogle Scholar
Koenig, L.S.Greenaway, K.R.Dunbar, M.Hattersley-Smith, G.. 1952. Arctic ice islands. Arctic 5 (2): 67–103.Google Scholar
Li, F.-C. 1991. Simulation of the recurrence probability of ice islands in the Arctic Ocean. Unpublished PhD thesis. University of Alaska Fairbanks.Google Scholar
Massom, R.A. 1991. Satellite remote sensing of polar regions. London and New York: Belhaven Press.Google Scholar
Maxwell, J.B. 1982. The climate of the Canadian Arctic islands and adjacent waters. Volume 2. Ottawa: Environment Canada, Atmospheric Environment Service (Climatological Studies 30).Google Scholar
McLaren, A.S.Serreze, M.C.Barry, R.G.. 1987. Seasonal variations of sea ice motion in the Canada Basin and their implications. Geophysical Research Letters 14(11): 1123–1126.CrossRefGoogle Scholar
Nutt, D.C. 1966. The drift of ice island WH-5. Arctic 19 (3): 244–262.CrossRefGoogle Scholar
Onstott, R.G. 1992. SAR and scatterometer signatures of sea ice. In: Carsey, F.D. (editor). Microwave remote sensing of sea ice. Washington, DC: American Geophysical Union (Geophysical Monograph Series 68): 73–104.CrossRefGoogle Scholar
Serreze, M.CBarry, R.G.McLaren, A.S.. 1989. Seasonal variations in sea ice motion and effects on sea ice concentration in the Canada Basin. Journal of Geophysical Research 94 (C7): 10,955–10,970.CrossRefGoogle Scholar
Yan, M. 1986. The relationship between ice island movement and weather conditions. Unpublished MS thesis. University of Alaska Fairbanks.Google Scholar