Prediction and analysis of tides and tidal currents

Prediction and analysis of tides and tidal currents

An efficient algorithm of tidal harmonic analysis and prediction is presented in this paper. The analysis is strengthened by utilising known relationships between tidal constituents found at a neighbouring reference site. The system of linear equations of the least-squares solution is enhanced with...

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Bibliographic Details
Main Author: Shu, Jian Jun
Other Authors: School of Mechanical and Aerospace Engineering
Format: Article
Language:English
Published: 2011
Subjects:
DRNTU::Engineering::Mathematics and analysis::Simulations
DRNTU::Engineering::Civil engineering::Water resources
Online Access:https://hdl.handle.net/10356/93991
http://hdl.handle.net/10220/7226
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Institution: Nanyang Technological University
Language: English
Description
Summary:An efficient algorithm of tidal harmonic analysis and prediction is presented in this paper. The analysis is strengthened by utilising known relationships between tidal constituents found at a neighbouring reference site. The system of linear equations of the least-squares solution is enhanced with included constraint equations. In the case of inadequate data, ill-conditioning in the system of equations that has appeared in other algorithms is conveniently avoided. In solving the resultant normal equations, Goertzel's recurrence formula is adopted so that the whole compuation time is dramatically reduced.

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