18O concentrations in sea ice of the Weddell Sea, Antarctica

M. A. Lange, P. Schlosser, S. F. Ackley, P. Wadhams, G. S. Dieckmann

Research output: Contribution to journalArticle

85 Scopus citations

Abstract

We present data on ice texture, salinity, and δ18O obtained from identical sections of ice cores during the Winter Weddell Sea Project 1986 on RV Polarstern from July through August 1986, in the longitude range between 5°W and 7°E. We find no uniquely definable relationship between δ18O values and ice texture in a particular section. However, most of the snow ice as well as some sections of frazil ice are found to have negative δ18O concentrations. This is due to varying degrees of admixtures of meteoric ice (snow) and sea-water during formation of snow ice. In contrast to common assumptions, our results seem to indicate that a snow cover contributes positively to sea-ice growth rather than slowing down the overall growth rate. -from Authors

Original languageEnglish (US)
Pages (from-to)315-323
Number of pages9
JournalJournal of Glaciology
Volume36
Issue number124
DOIs
StatePublished - 1990

ASJC Scopus subject areas

  • Earth-Surface Processes

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