Observed and modelled tidal currents in the New Zealand region |
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| Authors: | Basil R Stanton Derek G Goring Robert G Bell |
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| Institution: | 1. National Institute of Water &2. Atmospheric Research Ltd , P.O.Box 14 901, Wellington, New Zealand;3. Atmospheric Research Ltd , P. O. Box 8602, Christchurch, New Zealand;4. Atmospheric Research Ltd , P.O.Box 11 115, Hamilton, New Zealand |
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| Abstract: | Tidal currents derived from current meter measurements are compared with the output from a barotropic tidal model of the New Zealand region. For the semi‐diurnal constituents there was very good agreement for the M2 tide and good agreement for the S2 tide. For the diurnal constituents (Kl, Ol) it was found that as the amplitude of the constituents decreased so did both the model/observation agreement and the accuracy of the observed tidal ellipse parameters. Consequently it was not possible to decide whether differences arose through shortcomings in the model or in the data. However, the overall performance of the model as a prognostic tool for ocean tidal current simulation appears to be good. |
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| Keywords: | tidal currents numerical model current measurements tidal ellipses |
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