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SIPEX II: Wave propagation in an Antarctic marginal ice zone

SIPEX II: Wave propagation in an Antarctic marginal ice zone
Alison L. Kohout

Authors

Dr Alison L Kohout
NIWA, Christchurch, NZ

Dr Mike Williams
NIWA, Wellington, NZ

Dr Jan Lieser
ACE CRC, Hobart, Australia

Dr Takenobu Toyota
Hokkaido University, Hokkaido, Japan

Abstract

Antarctic sea-ice is highly influenced by the dynamic nature of the Southern Ocean. Ocean waves can propagate from tens to hundreds of kilometres into sea-ice, leaving behind a wake of broken ice sheets. As global climate change intensifies, storm intensity will increase in the Southern Ocean. Increased storm intensity will bring stronger winds and bigger waves, which have the potential to travel deeper into the ice pack and increase the likelihood that ice floes break apart. To enhance our understanding of this system, our aim during the Sea Ice, Physics and Ecosystems eXperiment (SIPEXII) was to build on the scarce Antarctic waves-in-ice dataset by collecting a set of wave observations in the marginal ice zone. Five wave sensors were deployed on Antarctic sea-ice. They were spread along a 200 km north – south transect line on 121 E. Every three hours, the sensors simultaneously woke and recorded their location and a burst of wave acceleration data. The results from the voyage will be presented.

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Key dates

  • 11th June 2013
    Registrations close
  • 21st June 2013
    Registrations at the AAD open for staff
  • 24th June 2013
    Registrations at the venue open
  • 24th June 2013
    Conference commences
  • 26th June 2013
    Conference concludes

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This page was last modified on 24 September 2013.