Skip to main content

Estimating Extreme Still-water Levels and Currents Offshore

  • Conference paper
Oceanology

Abstract

Still-water level and currents are important parameters for the design and operation of offshore structures (Marty and Eggar, 1983; Prior-Jones, 1983). Still-water level (swl), due to tide and surge, is required for water depth and deck clearance (‘air gap’) studies, and it also determines the level of attack of waves on the structure. Currents contribute to the forces on the structure and may be as important as waves in coastal regions where wave heights tend to decrease (due to depth-limiting) and tidal currents are strong.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info
Hardcover Book
USD 219.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  • Alcock, G. and Pugh, D. T. 1980. Observations of tides in the Bristol Channel and Severn Estuary. IOS Report No. 112.

    Google Scholar 

  • Alcock, G. and Stokes, E. G. 1985. Application of the joint-probability method of estimating extreme sea levels to observations in the northern North Sea. E and P Forum workshop on the application of joint probability of metocean phenomena in the oil industry’s structural design work, November 1985, London.

    Google Scholar 

  • Amin, M. 1979. A note on extreme tidal levels. Int. Hyd. Rev. 56 (2), 133–141.

    Google Scholar 

  • Baker, T. F. and Alcock, G. 1983. Time variation of ocean tides. In Procs. 9th Int. Symp. on Earth tides, New York 1981. E. Schweizerbart’sche Verlag, Stuttgart, pp. 341–350.

    Google Scholar 

  • Davies, A. M. and Flather, R. A. 1978. Application of numerical models of the north-west European continental shelf and the North Sea to the computation of the storm surges of November to December 1973. Dt. hydrogr. Z. A, No. 14, 72pp.

    Google Scholar 

  • Davison, A. C. 1984. Modelling excesses over high thresholds, with an application. In Statistical extremes and Applications. Reidel, Dordrecht, pp. 461–482.

    Google Scholar 

  • Flather, R. A. 1981. Practical surge prediction using numerical models. In Floods due to High Winds and Tides (Ed. D. H. Peregrine). Academic Press, London, pp. 21–43.

    Google Scholar 

  • Flather, R. A. 1986. Estimates of extreme conditions of tide and surge using a numerical model of the north-west European continental shelf. Submitted to Estr. Coast, and Shelf Sci.

    Google Scholar 

  • Harding, J. and Binding, A. A. 1978. The specification of wind and pressure fields over the North Sea and some areas of the North Atlantic during 42 gales from the period 1966 to 1976. IOS Report No. 55.

    Google Scholar 

  • Marty, L. and Eggar, D. 1983. An offshore operator’s requirements for oceanographic data and research. J. Soc. Underwater Tech. 9 (2), 13–21.

    Google Scholar 

  • NERC 1975. Flood studies report. Vol. I. Hydrological Studies, The Council, London.

    Google Scholar 

  • Prandle, D. and Wolf, J. 1978. The interaction of surge and tide in the North Sea and River Thames. Geophys. J. R. astr. Soc. 55, 203–216.

    Google Scholar 

  • Prior-Jones, R. L. 1983. Extending environmental data into design criteria. The Oilman, June 1983, 61–65.

    Google Scholar 

  • Proctor, R. and Flather, R. A. 1983. Routine storm surge forecasting using numerical models: procedures and computer programs for use on the CDC CYBER 205E at the British Meteorological Office. IOS Report No. 167.

    Google Scholar 

  • Pugh, D. T. 1982. Estimating extreme currents by combining tidal and surge probabilities. Ocean Eng. 9, 361–372.

    Article  Google Scholar 

  • Pugh, D. T. and Faull, H. 1983. Tides, surges and mean sea level trends. In Shoreline protection. Thomas Telford, London, pp. 59–69.

    Google Scholar 

  • Pugh, D. T. and Vassie, J. M. 1976. Tide and surge propagation offshore in the Dowsing region of the North Sea. Dt hydrogr. Z. 29, 163–213.

    Article  Google Scholar 

  • Pugh, D. T. and Vassie, J. M. 1979. Extreme sea levels from tide and surge probability. In Proc. 16th Coastal Eng. conf, Hamburg, 1978. American Society of Civil Engineers, New York, pp. 911–930.

    Google Scholar 

  • Pugh, D. T. and Vassie, J. M. 1980. Applications of the joint probability method for extreme sea level computations. Procs. Inst. Civ. Engs, Part 2, 69, 959–975.

    Article  Google Scholar 

  • Smith, R. L. 1984. Threshold methods for sample extremes. In Statistical extremes and Applications. Reidel, Dordrecht, pp. 621–638.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

Copyright information

© 1986 Society for Underwater Technology

About this paper

Cite this paper

Alcock, G., Flather, R. (1986). Estimating Extreme Still-water Levels and Currents Offshore. In: Oceanology. Advances in Underwater Technology, Ocean Science and Offshore Engineering, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4205-9_17

Download citation

  • DOI: https://doi.org/10.1007/978-94-009-4205-9_17

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-8366-9

  • Online ISBN: 978-94-009-4205-9

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics