INFLUENCE OF ICE CONDITIONS ON NSR TRANSIT SAILING

The length of the season and the average speed through the Northern Sea Route (NSR) are key factors to the NSR profitability. Transit of the NSR is today limited to the period July-October mainly due to severe ice conditions. New icebreaker and ship technology, together with improved navigation systems, will give possibilities for extending the navigation period. Regularity is another key factor to NSR profitability. Irregularity might occur due to rapid changes in the ice and weather conditions as well as to inefficient coordination of convoys and ice-breaker support. The main limiting factors for transit sailing are the ice conditions and the water depth. The ice conditions along the NSR are extremely dynamic, leading to large annual, seasonal and regional variations. In winter the success of the voyages will mainly depend on the polynyas and the discontinuities in the drifting ice. The paper presents spatial and temporal variability analyses of the ice conditions along the NSR. Based on historical transit sailing and ship damages, transit time for selected ship classes as well as high navigation risk areas and periods are presented.

  • Supplemental Notes:
    • IST '95, Northern Sea Route; Future & Perspective; INSROP Symposium; 1-6 Oct 1995; Tokyo, Japan. Procs. Publ by Ship & Ocean Foundation, Japan. Ppr TSI-1, p 383 [7 p, 14 ref, 3 tab, 4 fig]
  • Authors:
    • Vefsnmo, S
    • L vas, S M
  • Publication Date: 1995

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00728233
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Nov 4 1996 12:00AM