Tide–surge interaction observed at Singapore and the east coast of Peninsular Malaysia using a semi-empirical model

Koh, Zhi Yang; Grandey, Benjamin S.; Samanta, Dhrubajyoti; Switzer, Adam D.; Horton, Benjamin P.; Dauwels, Justin; Chew, Lock Yue

doi:https://doi.org/10.5194/os-20-1495-2024

Articles | Volume 20, issue 6

https://doi.org/10.5194/os-20-1495-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/os-20-1495-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 6

Research article

|

25 Nov 2024

Research article |

| 25 Nov 2024

Tide–surge interaction observed at Singapore and the east coast of Peninsular Malaysia using a semi-empirical model

Zhi Yang Koh, Benjamin S. Grandey, Dhrubajyoti Samanta, Adam D. Switzer, Benjamin P. Horton, Justin Dauwels, and Lock Yue Chew

Supplement

https://doi.org/10.5194/os-20-1495-2024-supplement

Data sets

Unified tidal analysis and prediction using the UTide Matlab functions D. Codiga https://doi.org/10.13140/RG.2.1.3761.2008

Sea level measured by tide gauges from global oceans as part of the Joint Archive for Sea Level (JASL) since 1846 P. C. Caldwell et al. https://doi.org/10.7289/V5V40S7W

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

The GEBCO_2023 Grid – a continuous terrain model of the global oceans and land GEBCO Compilation Group https://doi.org/10.5285/f98b053b-0cbc-6c23-e053-6c86abc0af7b

Model code and software

TSI-SGMY: Analysis Code for "Tide-Surge Interaction observed at Singapore and the east coast of Peninsular Malaysia using a Semi-empirical Model" Z. Y. Koh https://doi.org/10.5281/zenodo.12721300

Short summary

Identifying tide–surge interaction (TSI) is a complex task. We enhance existing statistical methods with a more-robust test that accounts for complex tides. We also develop a semi-empirical model to investigate the influence of one mechanism of TSI, tidal-phase alteration. We apply these techniques to tide-gauge records from Singapore and the east coast of Peninsular Malaysia. We find TSI at all studied locations: tidal-phase alteration can change the timing of large surges.