SEA ICE AND SURFACE WATER CIRCULATION, ALASKAN CONTINENTAL SHELF

The author has identified the following significant results. The boundaries of land fast ice, distribution of pack ice, and major polynya were studied in the vicinity of the Bering Strait. Movement of pack ice during 24 hours was determined by plotting the distinctly identifiable ice floes on ERTS-1 imagery obtained from two consecutive passes. Considerably large shallow area along the western Seward Peninsula just north of the Bering Strait is covered by land fast ice. This ice hinders the movement of ice formed in eastern Chukchi Sea southward through the Bering Strait. The movement of ice along the Russian coast is relatively faster. Plotting of some of the ice floes indicated movement of ice in excess of 30 km in and south of the Bering Strait between 6 and 7 March, 1973. North of the Bering Strait the movement approached 18 km. The movement of ice observed during March 6 and 7 considerably altered the distribution and extent of polynya. These features when continually plotted should be of considerable aid in navigation of ice breakers. The movement of ice will also help delineate the migration and distribution of sea animals. (Author)

  • Corporate Authors:

    University of Alaska, College

    College, AK  USA 
  • Authors:
    • Wright, F F
    • Sharma, G D
    • Burn, J J
  • Publication Date: 1973-5-30

Media Info

  • Pagination: 8 p.
  • Serial:
    • Issue Number: 5

Subject/Index Terms

Filing Info

  • Accession Number: 00048309
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Prog Rpt
  • Contract Numbers: NAS5-21833
  • Files: TRIS
  • Created Date: Nov 14 1974 12:00AM