Audiovisual Vignettes of Sea Ice Ridging in the Beaufort Sea in 2007

<p>This presents footage demonstrating the scales of sea ice motion involved in creating ridges under varied degrees of compression and shear.&nbsp; Sound heard in these vignettes is associated with frictional dissipation of kinetic energy during vertical ice displacement. Images shown were recorded during April 2-15, 2007 UTC, as part of the field campaign: Sea Ice Experiment - Dynamic Nature of the Arctic (SEDNA). Footage and photographs presented in this vignette were taken by Andrew Roberts with the assistance of Jennifer Hutchings and Cathleen Geiger.&nbsp; Funding for SEDNA was provided by&nbsp; the National Science Foundation, grant number OPP ARC 0612527.&nbsp; An overview of the SEDNA field campaign is given in: Hutchings, J. K. et al. (2008), Role of Ice Dynamics in the Sea Ice Mass Balance, <em>Eos Trans. AGU</em>, <em>89</em>(50), doi:10.1029/2008EO500003. &nbsp;</p> <p>[Version 2 includes minor corrections and additions to text in Version 1]</p>