LOCAL ICEBERG MOTION--A COMPARISON OF FIELD AND MODEL STUDIES

This paper describes a joint research effort in the area of local iceberge drift, comprising a field study and the first stages in the construction of a workable and valid laboratory model. In the field study conducted by the United States Coast Guard, two icebergs were tracked for a number of days during June 1977 while drogues were used to measure currents in the vicinity. Iceberg mass estimates were made and underwater profiles were obtained. Other environmental factors such as wind velocity were measured. The technique is described and preliminary results are presented, including iceberg-drogue relative drift both for depth integrating drogues and shallow and deep drogues. The laboratory model is being constructed at Memorial University of Newfoundland and some tests have been made using spherical and cubical semi-immersed objects. The relevant fluid dynamical and modelling theory is discussed, and the experimental approach is described. Some drag coefficients in a restricted range of Reynolds Numbers have been measured. Improvements to the model based on input from the field study are suggested.

• Supplemental Notes:
  • Proceedings of the 4th International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 77), Newfoundland Memorial University, Canada, September 26-30, 1977.
• Corporate Authors:

  POAC Conference 77

  ,    
• Authors:
  • Russell, W E
  • Riggs, N P
  • ROBE, R Q
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Drag forces; Drift ice; Icebergs; Motion; Studies
• Old TRIS Terms: Model testing; Motion studies
• Subject Areas: Data and Information Technology; Marine Transportation;

Filing Info

• Accession Number: 00167694
• Record Type: Publication
• Source Agency: Memorial University of Newfoundland, Canada
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Jan 13 1978 12:00AM