CRACKS IN PERENNIAL SEA ICE DUE TO THERMALLY INDUCED STRESS

The lowering of surface temperature below that of the water temperature underneath a floating sea-ice sheet often results in thermal cracking. The formation of these cracks is investigated theoretically by modeling the ice sheet as a floating elastic plate with thermal properties that vary with temperature and salinity. Results are obtained by extending previous work of Evans and Untersteiner and a typical crack spacing on the order of 200 m is found for perennial sea ice. (Author)

  • Supplemental Notes:
    • Also available in Journal of Geophysical Research, volume 76, number 33, page 8153-8155 November 1971.
  • Corporate Authors:

    University of Washington, Seattle

    Seattle, WA  USA  98195
  • Authors:
    • EVANS, R J
  • Publication Date: 1971-8-24

Media Info

  • Pagination: 6 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00033623
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: TR-13 Tech Rpt
  • Contract Numbers: N00014-67-A-01030007
  • Files: TRIS
  • Created Date: Aug 15 1972 12:00AM