Halo of low ice concentration observed over the Maud Rise seamount

R. W. Lindsay, D. M. Holland, R. A. Woodgate

Research output: Contribution to journalArticlepeer-review


A distinctive halo of low sea ice concentration has been observed above the Maud Rise seamount in the eastern Weddell Sea. The 300-km circular halo is seen most clearly in the monthly mean ice concentration for the months July through November. The mean was computed from satellite-based passive microwave measurements over a 23-year period. The halo is most distinct in October; even then, however, the mean ice concentration in the halo is just 10% less than in the center, where it is very near 100%. The halo may reflect the existence of a Taylor cap circulation over the seamount or other topographically induced mechanisms.

Original languageEnglish (US)
Pages (from-to)L13302 1-4
JournalGeophysical Research Letters
Issue number13
StatePublished - Jul 16 2004

ASJC Scopus subject areas

  • Geophysics
  • General Earth and Planetary Sciences


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