Numerical modeling of intertidal mudflat profile evolution under waves and currents
| Author(s) | Miranda, Paterno S. | |
| Author(s) | Kobayashi, Nobuhisa | |
| Date Accessioned | 2022-07-15T13:29:01Z | |
| Date Available | 2022-07-15T13:29:01Z | |
| Publication Date | 2022-06-25 | |
| Description | Electronic version of an article published as Coastal Engineering Journal 2022, 1-22. https://doi.org/10.1080/21664250.2022.2089445 © 2022 Japan Society of Civil Engineers, https://www.tandfonline.com/journals/tcej20. This article will be embargoed until 06/25/2023. | en_US |
| Abstract | The erosional and accretional profile changes of an intertidal mudflat are examined using available field data and the cross-shore numerical model CSHORE that is extended to allow for a mixture of sand and mud. The semidiurnal migration of the still water shoreline and surf zone is resolved numerically to predict the net cross-shore and longshore sediment transport rates influenced by the small cross-shore (undertow) and longshore currents induced by breaking waves of about 0.2 m height. Alongshore sediment loss or gain is included by approximating the alongshore sediment transport gradient using an equivalent alongshore length. The calibrated CSHORE reproduces the measured erosional (accretional) profile change of about 0.1 m (0.1 m) over a cross-shore distance of 950 m during the erosional (accretional) interval of 206 (195) days. The mudflat profile changes are equally affected by mud characteristics, the semidiurnal tide amplitude, and the wave height, period, and direction. In addition, the alongshore water level gradient and wind stress influence longshore current and sediment transport. This study shows the importance of sediment transport in the surf zone that may have been excluded in previous numerical modeling. | en_US |
| Sponsor | During the 2-year Master’s study at the University of Delaware, P.S. Miranda was supported by the Philippine-American Educational Foundation (Fulbright Commission in the Philippines) under the Fulbright Foreign Student Program scholarship. The extension of CSHORE capabilities was partially supported by the US Army Corps of Engineers under Agreement No. W912HZ18P0134. | en_US |
| Citation | Paterno S. Miranda & Nobuhisa Kobayashi (2022) Numerical modeling of intertidal mudflat profile evolution under waves and currents, Coastal Engineering Journal, DOI: 10.1080/21664250.2022.2089445 | en_US |
| ISSN | 1793-6292 | |
| URL | https://udspace.udel.edu/handle/19716/31127 | |
| Language | en_US | en_US |
| Publisher | Coastal Engineering Journal | en_US |
| Keywords | intertidal mudflat | en_US |
| Keywords | mud transport | en_US |
| Keywords | sand transport | en_US |
| Keywords | numerical modeling | en_US |
| Keywords | cohesive sediment | en_US |
| Title | Numerical modeling of intertidal mudflat profile evolution under waves and currents | en_US |
| Type | Article | en_US |
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