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The growth, structure and disintegration of Arctic ice shelves

Published online by Cambridge University Press:  27 October 2009

Martin O. Jeffries
Martin O. Jeffries
Affiliation:
Geophysical Institute, University of Alaska, Fairbanks, Alaska 99775–0800, USA
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Abstract

The north coast of Ellesmere Island is the location of the only known ice shelves in the northern hemisphere. Present Arctic ice shelves are as much as 40–50 m thick and occupy sheltered fiords and embayments. These thick floating ice masses are remnants of the once-extensive Ellesmere Ice Shelf that has disintegrated since 1876–1906, when Aldrich and Peary respectively travelled along the coast. Reasons for the disintegration are not clear, but it has created many ice islands that have been known to circulate in the Arctic Ocean for 35 years or more. Both ice islands and ice shelves are readily distinguished from their surroundings by an undulating surface topography of parallel ridges and troughs up to 300 m apart. The undulations probably owe their origin to the effects of wind and meltwater. Since 1952 these large ice masses have been the subject of considerable research. Ice shelf growth began about 4000 BP, when glaciers flowed off the land and remained afloat in fiords and inlets, and sea ice grew thick and remained fast to the coast. The glacier and sea ice acted as platforms for further thickening both by surface accumulation of snow and ice and by undersurface accretion of fresh, brackish and saline ice. Although much has been learned about the growth, structure and behaviour of arctic ice shelves, questions still remain concerning ice island calving mechanisms, bottom freezing, thick sea ice growth and origins of the ridges and troughs.

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Articles
Information
Polar Record , Volume 23 , Issue 147 , September 1987 , pp. 631 - 649
Copyright
Copyright © Cambridge University Press 1987

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References

Bushnell, V. C. 1956. Marvin's ice shelf journey. Arctic 9(3): 166–67.CrossRefGoogle Scholar
Crary, A. P. 1956. Geophysical studies along northern Ellesmere Island. Arctic 9(3): 155–65.CrossRefGoogle Scholar
Crary, A. P. 1958. Arctic ice islands and ice shelf studies, part I. Arctic 11(1): 3–42.CrossRefGoogle Scholar
Crary, A. P. 1959. Build up of thick floating ice in Arctic areas. In Bushnell, V. C. (editor). Proceedings of the Second Annual Arctic Planning Session, October 1959. Bedford, Mass. Geophysics Research Directorate, Air Force Cambridge Research Centre, G.R.D. Research Notes, No 29: 39–42.Google Scholar
Crary, A. P. 1960. Arctic ice islands and ice shelf studies, part II. Arctic 13(1): 32–50.CrossRefGoogle Scholar
Crary, A. P. and Cotell, R. D. 1952. Ice islands in Arctic research. Scientific Monthly 75(5): 298–302.Google Scholar
Crary, A. P. and Others. 1955. Evidences of climatic change from ice island studies. Science 122(3181): 1171–73.CrossRefGoogle ScholarPubMed
Crowley, F. A. 1961. Density distributions for a two layered shelf. In Bushnell, V. C. (editor). Proceedings of the Third Annual Arctic Planning Session April 1960. Bedford, Mass. Geophysics Directorate, Air Force Cambridge Research Centre, G.R.D. Research Papers, No 63: 31–33.Google Scholar
Hattersley-Smith, G. 1955. Northern Ellesmere Island 1953 and 1954 (with Crary, A. P. and Christie, R. L.). Arctic 8(1): 1–36.CrossRefGoogle Scholar
Hattersley-Smith, G. 1956. Northern Ellesmere Island. Geographical Journal 122(1): 13–24.CrossRefGoogle Scholar
Hattersley-Smith, G. 1957a. The Ellesmere ice shelf and the ice islands. Canadian Geographer 9: 65–70.CrossRefGoogle Scholar
Hattersley-Smith, G. 1957b. The rolls on the Ellesmere Ice Shelf. Arctic 10(1): 32–44.CrossRefGoogle Scholar
Hattersley-Smith, G. 1960. Some remarks on glaciers and climate in northern Ellesmere Island. Geografiska Annaler 42(1): 45–48.Google Scholar
Hattersley-Smith, G. 1963. The Ward Hunt Ice Shelf: recent changes of the ice front. Journal of Glaciology 4(34): 415–24.CrossRefGoogle Scholar
Hattersley-Smith, G. 1967. Note on ice shelves off the north coast of Ellesmere Island. The Arctic Circular 17(1): 13–14.Google Scholar
Hattersley-Smith, G. 1970. The regime of the Ward Hunt Ice Shelf and of the ice in the mouth of Nansen Sound, Ellesmere Island. In Glaciers. Proceedings of the IHD Workshop Seminar 1970, Vancouver, B.C. Canadian National Committee for the International Hydrological Decade: 21–22.Google Scholar
Hattersley-Smith, G. 1972. Climatic change and related problems in northern Ellesmere Island, N.W.T., Canada. In Vasari, Y. and Others (editors). Climatic changes in Arctic areas during the last ten thousand years. Acta Universitatis Ouluensis, Series A, Scientiae Rerum Naturalium No 3, Geologica No 1, University of Oulu: 137–48.Google Scholar
Hattersley-Smith, G. and Serson, H. 1970. Mass balance of Ward Hunt Ice Rise and Ice Shelf: a 10 year record. Journal of Glaciology 9(56): 247–52.CrossRefGoogle Scholar
Hattersley-Smith, G. and Others. 1969. Glacier depths in northern Ellesmere Island: airborne radio echo sounding in 1966. Operation Tanquary, DREO Technical Note 69–6, Geophysics Hazen 36. Defence Research Board, Department of National Defence, Ottawa.Google Scholar
Herlinveaux, R. H. 1963. Oceanographic observations in the Canadian Basin, Arctic Ocean, April–May 1962. Fisheries Research Board of Canada Manuscript Report Series, No 144.Google Scholar
Holdsworth, G. 1971. Calving from Ward Hunt Ice Shelf, 1961–1962. Canadian Journal of Earth Sciences 8(2): 299–305.CrossRefGoogle Scholar
Holdsworth, G. 1977. Tidal interaction with ice shelves. Annales de Géophysique 33(1–2): 133–46.Google Scholar
Holdsworth, G. and Glynn, J. 1978. Iceberg calving from floating glaciers by a vibration mechanism. Nature 274(5670): 464–68.CrossRefGoogle Scholar
Jeffries, M. O. 1982. The Ward Hunt Ice Shelf, Spring 1982. Arctic 35(4): 542–44.CrossRefGoogle Scholar
Jeffries, M. O. 1985. Physical, chemical and isotopic investigations of Ward Hunt Ice Shelf and Milne Ice Shelf, Ellesmere Island, NWT. PhD thesis, University of Calgary, Alberta, Canada.Google Scholar
Jeffries, M. O. 1986a. Ice island calvings and ice shelf changes, Milne Ice Shelf and Ayles Ice Shelf, Ellesmere Island, NWT. Arctic 39(1): 15–19.CrossRefGoogle Scholar
Jeffries, M. O. 1986b. Glaciers and the morphology and structure of Milne Ice Shelf. Arctic and Alpine Research 18(4): 397–405.CrossRefGoogle Scholar
Jeffries, M. O. and Serson, H. 1983. Recent changes at the front of Ward Hunt Ice Shelf, Ellesmere Island, NWT. Arctic 36(3): 289–90.CrossRefGoogle Scholar
Jeffries, M. O. and Krouse, H. R. 1984a. Stratified bodies of water on northern Ellesmere Island, NWT, Canada. ZFl – Mitteilungen 84: 159–69.Google Scholar
Jeffries, M. O. and Krouse, H. R. 1984b. Arctic ice shelf growth, fiord oceanography and climate. Zeitschrift für Gletscherkunde und Glazialgeologie 20: 147–53.Google Scholar
Jeffries, M. O. and Serson, H. V. 1986. Survey and mapping of recent ice shelf changes and landfast sea ice growth along the north coast of Ellesmere Island, NWT, Canada. Annals of Glaciology 8: 96–99.CrossRefGoogle Scholar
Keys, J. E. 1978. Water regime of Disraeli Fiord, Ellesmere Island. Defence Research Establishment Ottawa, Report No 782.Google Scholar
Keys, J. E. and Others. 1968. On the oceanography of Disraeli Fiord on northern Ellesmere Island. Manuscript Report No 6, Marine Sciences Centre, McGill University, 1968.Google Scholar
Keys, J. E. and Others. 1969. The oceanography of Disraeli Fiord. Operation Tanquary Report Hazen 34. Defence Research Board, Department of National Defence, Canada.Google Scholar
Koenig, L. S. and Others. 1952. Arctic ice islands. Arctic 5(2): 67–103.Google Scholar
Lindsay, D. and Others. 1968. Ice islands, 1967. Arctic 21(1): 103–05.CrossRefGoogle Scholar
Lister, H. 1962a. Heat and mass balance at the surface of the Ward Hunt Ice shelf, 1960. Arctic Institute of North America, Research Paper No 19.Google Scholar
Lister, H. 1962b. Mass balance studies on the Ellesmere Ice Shelf. Journal of Glaciology 4(33): 298–99.Google Scholar
Lyons, J. B. and Leavitt, F. G. 1961. Structural and stratigraphic studies on the Ward Hunt Ice Shelf. Bedford, Mass. Geophysics Research Directorate, US Air Force, Cambridge Research Laboratories (Final Report on Contract AF 19 (604)–6188).Google Scholar
Lyons, J. B. and Ragle, R. H. 1962. Thermal history and growth of the Ward Hunt Ice Shelf. UIGG-IAHS Commission des Neiges et Glaces, Collogue d'Obergurgl 10–18 September 1962: 88–97.Google Scholar
Lyons, J. B. and Mielke, J. E. 1973. Holocene history of a portion of northernmost Ellesmere Island. Arctic 26(4): 314–23.CrossRefGoogle Scholar
Lyons, J. B. and Others. 1971. Basement ice, Ward Hunt Ice Shelf, Ellesmere Island, Canada. Journal of Glaciology 10(58): 93–100.Google Scholar
Marshall, E. W. 1955. Structural and stratigraphic studies of the northern Ellesmere Ice Shelf. Arctic 8(2): 109–14.CrossRefGoogle Scholar
Marshall, E. W. 1960. Structure and stratigraphy of T-3 and the Ellesmere Ice Shelf. Geophysical Research Paper No 63, Scientific Studies of Fletcherapos;s Ice Island, T-3, 1952–1955. Air Force Cambridge Research Center, Bedford, Mass.: 45–47.Google Scholar
Maykut, G. A. and Untersteiner, N. 1971. Some results from a time-dependent thermodynamic model of sea ice. Journal of Geophysical Research 76(6): 1550–75.CrossRefGoogle Scholar
Muguruma, J. and Higuchi, K. 1963. Glaciological studies on ice island T-3. Journal of Glaciology 4(36): 709–30.CrossRefGoogle Scholar
Ommanney, C. S. L. 1982a. Bibliography of Canadian Glaciology, 1982 – Bibliography No 2 / Ellesmere Island Glaciers and Ice Shelves. Environment Canada, National Hydrology Research Institute, Paper No 20.Google Scholar
Ommanney, C. S. L. 1982b. Bibliography of Canadian Glaciology, 1982 – Bibliography No 3/ Ice Islands of the Arctic Ocean. Environment Canada, National Hydrology Research Institute, Paper No 21.Google Scholar
Parliamentary Paper v LVI 1877. Journals and proceedings of the arctic expedition of 1875–6 under the command of Captain Sir George S. Nares, R.N., K.C.B. LondonGoogle Scholar
Peary, R. E. 1907. Nearest the Pole. A narrative of the polar expedition of the Peary Arctic Club in the S.S. Roosevelt, 1905–1906. London, Hutchinson.CrossRefGoogle Scholar
Polunin, N. 1955. Attempted dendrochronological dating of ice island T-3. Science 122(3181): 1184–86.CrossRefGoogle ScholarPubMed
Prager, B. T. 1983. Digital signal processing of UHF radio-echo sounding data from northern Ellesmere Island. MSc thesis, University of British Columbia, Vancouver, Canada.Google Scholar
Ragle, R. H. and Others. 1964. Ice core studies of Ward Hunt Ice Shelf, 1960. Journal of Glaciology 5(37): 39–59.CrossRefGoogle Scholar
Rodahl, K. 1954. Ice islands in the Arctic. Scientific American 191(6): 40–45.CrossRefGoogle Scholar
Sackinger, W. M. and Others. 1985a. Ice islands as hazards to arctic offshore production structures. Proceedings of the Offshore Technology Conference, May 6–9, 1985. Houston, Texas: 399–408.Google Scholar
Sackinger, W. M. and Others. 1985b. Ice island generation and trajectories north of Ellesmere Island, Canada. Proceedings of the 1985 Conference on Port and Ocean Engineering Under Arctic Conditions (POAC), September 1985. Narssarssuaq, Greenland: 1009–40.Google Scholar
Serson, H. V. 1972. Investigation of a plug of multi-year old sea ice in the mouth of Nansen Sound. Defence Research Establishment Ottawa, Technical Note 72–6.Google Scholar
Serson, H. V. 1979. Mass balance of the Ward Hunt ice rise and ice shelf: an 18 year record. Defence Research Establishment Pacific, Technical Memorandum 79–4.Google Scholar
Serson, H. V. 1984. Ice conditions off the north coast of Ellesmere Island, Nansen Sound, Sverdrup and Peary Channels, 1963–1980. Appendix A in Sackinger, W. M., Stringer, W. J. and Serson, H., Arctic ice island and sea ice movements and mechanical properties. Second quarterly report submitted to US Department of Energy, Morgantown, W Va., Geophysical Institute, University of Alaska, Fairbanks.Google Scholar
Smith, D. D. 1964. Ice lithologies and structure of ice island Arlis-II. Journal of Glaciology 5(37): 17–38.CrossRefGoogle Scholar
Spedding, L. G. 1977. Ice island count, southern Beaufort Sea, 1976. Report IPRT-13ME-77 of Arctic Petroleum Operations Association Project 99–3.Google Scholar
Stewart, T. G. and England, J. 1983. Holocene sea ice variations and paleoenvironmental change, northernmost Ellesmere Island. Arctic and Alpine Research 15(1): 63–87.CrossRefGoogle Scholar
Stoiber, R. E. and Others. 1960. Petrographic evidence on the source area and age of T-3. In Bushnell, V. C. (editor). Scientific studies of Fletcher's ice island T-3. Geophysical Research Directorate, US Air Force Cambridge Research Center, Bedford, Mass. G.R.D. Research Papers No 63: 58–72.Google Scholar
Us Navy. 1967. Birds eye 2–67, 15 March – 19 April, 1967. USN Oceanographic Office Informal Report No 67–81.Google Scholar