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An empirical approach to improving tidal predictions using recent real-time tide gauge data

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journal contribution
posted on 2023-05-18, 21:02 authored by Hibbert, A, Royston, SJ, Horsburgh, KJ, Leach, H, Hisscott, A
Harmonic tidal prediction methods are often problematic in estuaries owing to the distortion of tidal fluctuations in shallow water, causing disparity between predicted and observed sea levels. The UK National Tidal and Sea Level Facility attempted to reduce prediction errors for the short-term forecasting of High Water (HW) extremes using three alternative techniques to the Harmonic Method in the Bristol Channel, where prediction errors are relatively large. A simple procedure for correcting Harmonic Method HW predictions using recent observations (referred to as the Empirical Correction Method) proved most effective and was also successfully applied to sea-level records from 42 of the 44 UK Tide Gauge Network locations. It is to be incorporated into the operational systems of the UK Coastal Monitoring and Forecasting Partnership to improve UK shortterm sea level predictions.

History

Publication title

Journal of Operational Oceanography

Volume

8

Pagination

40-51

ISSN

1755-876X

Department/School

School of Geography, Planning and Spatial Sciences

Publisher

Taylor and Francis

Place of publication

UK

Rights statement

Copyright 2015 Natural Environment Research Council (NERC). Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Repository Status

  • Open

Socio-economic Objectives

Oceanic processes (excl. in the Antarctic and Southern Ocean)

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