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Effect of wind scouring on climatic records from ice-core oxygen-isotope profiles

Nature volume 301, pages 205209 (20 January 1983) | Download Citation

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Abstract

Removal of winter snow by wind explains why the annual mean oxygen-isotope ratio at an ice divide is 2.5‰ less negative than it is 1.2 km downslope. Cores from two sites on an ice cap, Ellesmere Island, Canada, show past variations in the difference, depending on where the ice originated relative to the scoured zone. Some ice-core climatic records may need correction for scouring.

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Author information

Affiliations

  1. Energy, Mines and Resources, Polar Continental Shelf Project, 880 Wellington Street, Ottawa, Canada K1A 0E4

    • D. A. Fisher
    •  & R. M. Koerner
  2. Paterson Geophysics Inc., Box 303, Heriot Bay, British Columbia, Canada V0P 1H0

    • W. S. B. Paterson
  3. Geophysical Isotope Laboratory, University of Copenhagen, Haraldsgade 6, 2200 Copenhagen, North Denmark

    • W. Dansgaard
    • , N. Gundestrup
    •  & N. Reeh

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https://doi.org/10.1038/301205a0

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