Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering
This contribution builds on an existing methodology of image clustering analysis, conceived for modelling the wave overtopping at dikes from video records of laboratory experiments. It presents new procedures and algorithms developed to extend this methodology to the representation of the wave runup...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-07-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/15/2729 |
| _version_ | 1797585957833146368 |
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| author | Sara Mizar Formentin Barbara Zanuttigh |
| author_facet | Sara Mizar Formentin Barbara Zanuttigh |
| author_sort | Sara Mizar Formentin |
| collection | DOAJ |
| description | This contribution builds on an existing methodology of image clustering analysis, conceived for modelling the wave overtopping at dikes from video records of laboratory experiments. It presents new procedures and algorithms developed to extend this methodology to the representation of the wave runup at crown walls on top of smooth berms. The upgraded methodology overcomes the perspective distortion of the native images and deals with the unsteady, turbulent and bi-phase flow dynamics characterizing the wave impacts at the walls. It accurately reconstructs the free surface along the whole structure profile and allows for a statistical analysis of the wave runup in the time and spatial domain. The effects of different structural configurations are investigated to provide key information for the design of coastal defences. In particular, the effects of increased sea levels in climate change scenarios are analysed. Innovative results, such as profiling of the envelopes of the runup along the wall cross and front sections, and the evidencing of 3D effects on the runup are presented. The extreme runup is estimated for the definition of the design conditions, while the envelopes of the average and minimum runup heights are calculated to assess the normal exercise conditions of existing structures. |
| first_indexed | 2024-03-11T00:13:22Z |
| format | Article |
| id | doaj.art-4cfd1ea5b6814fe3af4a8d17a58d5f4c |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T00:13:22Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-4cfd1ea5b6814fe3af4a8d17a58d5f4c2023-11-18T23:46:58ZengMDPI AGWater2073-44412023-07-011515272910.3390/w15152729Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image ClusteringSara Mizar Formentin0Barbara Zanuttigh1Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyDepartment of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Viale del Risorgimento 2, 40136 Bologna, ItalyThis contribution builds on an existing methodology of image clustering analysis, conceived for modelling the wave overtopping at dikes from video records of laboratory experiments. It presents new procedures and algorithms developed to extend this methodology to the representation of the wave runup at crown walls on top of smooth berms. The upgraded methodology overcomes the perspective distortion of the native images and deals with the unsteady, turbulent and bi-phase flow dynamics characterizing the wave impacts at the walls. It accurately reconstructs the free surface along the whole structure profile and allows for a statistical analysis of the wave runup in the time and spatial domain. The effects of different structural configurations are investigated to provide key information for the design of coastal defences. In particular, the effects of increased sea levels in climate change scenarios are analysed. Innovative results, such as profiling of the envelopes of the runup along the wall cross and front sections, and the evidencing of 3D effects on the runup are presented. The extreme runup is estimated for the definition of the design conditions, while the envelopes of the average and minimum runup heights are calculated to assess the normal exercise conditions of existing structures.https://www.mdpi.com/2073-4441/15/15/2729wave runupcrown wallsvideographycluster analysisdesign conditionsexercise conditions |
| spellingShingle | Sara Mizar Formentin Barbara Zanuttigh Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering Water wave runup crown walls videography cluster analysis design conditions exercise conditions |
| title | Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering |
| title_full | Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering |
| title_fullStr | Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering |
| title_full_unstemmed | Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering |
| title_short | Statistical Analysis of the Wave Runup at Walls in a Changing Climate by Means of Image Clustering |
| title_sort | statistical analysis of the wave runup at walls in a changing climate by means of image clustering |
| topic | wave runup crown walls videography cluster analysis design conditions exercise conditions |
| url | https://www.mdpi.com/2073-4441/15/15/2729 |
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