Rates and mechanisms of iceberg ablation in the d'Urville Sea, Southern Ocean.

  • Keys J
  • Williams K
  • 2

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Abstract

Wa ve a ction ca uses a bl a ti on in a narrow zone a round a n ice berg's waterlinc, a t up to 0 .3 m per day, in wa te r of - 1°C with wa ves up to 0 .4 m high. Subseque nt subaeria l ca lving o f ice from iceberg sid es ta kes pl ace up to a simil a r ra le. Subma rin e melting is an ord er of mag nitud e slower th a n wave ac tion but ac ts over the la rges t pan of an iceberg. Ab- la tio n ra tes deri ved th eore tica ll y or sta tisticall y e lsewh ere for compa ra bl e en viro nmental conditions, a re in reasona ble ag reem e nt with those mea- sured here. Drifting icebe rgs tra il a plume 01" mixed , slightl y cooled a nd diluted sea-wa ter in their wa ke.

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Authors

  • J. R. Keys

  • K. L. Williams

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