MODELLING THE CURRENT RESPONSE OF CONTINENTAL SHELF WATERS TO WINTER STORMS: COMPARISONS WITH DATA

In the past, little attention has been given to quantifying the capability of numerical models to reproduce storm induced currents on continental shelves. This issue is addressed by presenting comparisons between model-simulated and measured currents during winter storm conditions on the N.W. European and Mid-Atlantic Continental Shelves. For the N.W. European Shelf, measurements from eight current meter moorings over a 40 day period were used in the comparisons. Measurements from nine current meter moorings over a 75 day period were used in the Mid-Atlantic Shelf model/data comparisons. Quantitative comparisons of modelled results against observations include RMS error and standard linear regression parameters for each measurement location. Model performance is found to be roughly comparable in both shelf regions. It is also attempted to quantify the effect that errors in simulated currents have on offshore structure forces by comparing the overturning moment on a vertical, drag-dominated cylinder, computed using hindcast wave spectra and both modelled and measured currents.

• Supplemental Notes:
  • Proceedings of the 19th Annual Offshore Technology Conference, Houston, Texas, 27-30 Apr. 1987, Vol. 1, p. 503 [10 pp., 16 ref., 3 tab., 9 fig.]
• Authors:
  • Gordon, R B
  • Flather, R A
• Conference:
  • Proceedings of the 19th Annual Offshore Technology Conference
  • Location: Houston Texas, United States
  • Date: 1987-4-27 to 1987-4-30
• Publication Date: 1987

Language

• English

Subject/Index Terms

• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00692373
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Aug 14 1995 12:00AM