{"id":1040,"date":"2020-02-01T10:15:27","date_gmt":"2020-02-01T07:15:27","guid":{"rendered":"http:\/\/wavelab.ioc.ee\/?page_id=1040"},"modified":"2020-02-01T10:15:27","modified_gmt":"2020-02-01T07:15:27","slug":"project-with-institute-of-river-and-coastal-engineering-of-hamburg-university-of-technology","status":"publish","type":"page","link":"https:\/\/wavelab.taltech.ee\/?page_id=1040","title":{"rendered":"Project with Institute of River and Coastal Engineering of Hamburg University of Technology"},"content":{"rendered":"
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Field measurements of wave run-up on coastal structures with a pressure step gauge<\/b><\/span><\/span><\/p>\n

Description<\/b><\/span><\/span><\/p>\n

Wave run-up field measurements on German sea dikes have been carried out at the German North Sea coast in the last decade by the local authority responsible for coastal protection of the federal state of Schleswig-Holstein (LKN-SH) and in cooperation with the Institute of River and Coastal Engineering of TUHH (cp. Fig. 2). Lately, TUHH has developed a new prototype for wave run-up field measurements. Among others, the results have been used to validate and improve empirical formulas proposed in the well-known EurOtop manual.<\/span><\/span><\/span><\/p>\n

We would like to use German know-how and equipment to measure wave run-up on local rubble mound breakwaters (cp. Fig. 1) which are adapted to icy conditions (with a smooth slope, similar to German sea dikes) and are thus different from normal breakwaters. The results are expected to have influence on empirical wave run-up calculations in Nordic and Baltic countries and thus improving cost-effective coastal engineering and management.<\/span><\/span><\/span><\/p>\n

Moreover, the wave conditions near the breakwater are monitored with the help of a prototype for a miniature wave buoy (d=50cm, cp. Fig. 3) which will be validated and improved within an international research cooperation between scientists and engineers from Taiwan, Estonia and Germany.<\/span><\/span><\/span><\/p>\n

The aims of the project are: i) implementation and optimization of the step gauge, ii) validation and improvement wave run-up formulas (e.g. EurOtop), iii) joint analysis and assessment of measurements at the North Sea and Baltic Sea, and finally iv) dissemination of results (public seminars and preparation of a joint scientific publication).<\/span><\/span><\/span><\/p>\n

Background<\/b><\/span><\/span><\/p>\n

The project participants know each other from scientific exchanges (e.g. a guest stay of Mr. Rain M\u00e4nnikus at TUHH in 2019) and the interests are based on joint research on the hydrodynamic conditions in the Baltic Sea and the consequences for coastal protection structures. A joint publication of the participants of the project (authors: Mr. Norman Dreier, Mr. Rain M\u00e4nnikus, Mr. Peter Fr\u00f6hle) was submitted to the International Coastal Symposium 2020. One of the aims of the project is the deepening of the relations between project partners and to exchange knowledge on the scientific questions for the preparation of future joint-project applications of the partners. <\/span><\/span><\/span><\/p>\n

Timeline of the project<\/b><\/span><\/span><\/p>\n

The project was initially meant to be carried out from January to October 2020. The public seminars were intended to be organized in Tallinn and Riga to present the results. Due to the spread of COVID-19, the research project was deeply impacted and had to be reorganized. Preparation of measurement devices and their implementation were delayed. The physical meetings and stays in Estonia were cancelled. However, the delay did not affect the quality of measurements and analysis, because the meetings were successfully carried out online and the supporter of the project, the Baltic-German Universities Liaison Office provided flexible support. The following timeline deviates from the proposed one and reflects the activities done.<\/span><\/span><\/p>\n

\u00a0<\/p>\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n
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Concrete project activity <\/b><\/span><\/span><\/p>\n<\/td>\n

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Detailed description of the activity <\/span><\/span><\/p>\n<\/td>\n

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Duration of the activity<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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Date<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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from<\/span><\/span><\/p>\n<\/td>\n

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to<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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1. Kick-off meeting (video)<\/span><\/span><\/p>\n<\/td>\n

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Presentation of the project and discussion of work program<\/span><\/span><\/p>\n<\/td>\n

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Feb<\/span><\/span><\/p>\n<\/td>\n

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Feb<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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2. Preparation<\/span><\/span><\/p>\n<\/td>\n

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Selection of a possible study site and acquisition of measurement equipment <\/span><\/span><\/p>\n<\/td>\n

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Feb<\/span><\/span><\/p>\n<\/td>\n

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July<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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3. Implementation <\/span><\/span><\/p>\n<\/td>\n

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Set-up of the system at the study site<\/span><\/span><\/p>\n<\/td>\n

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July<\/span><\/span><\/p>\n<\/td>\n

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August<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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4. Measurements and maintenance of the system <\/span><\/span><\/p>\n<\/td>\n

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Conduction of field measurements of waves and wave run-up and maintenance of the system<\/span><\/span><\/p>\n<\/td>\n

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August<\/span><\/span><\/p>\n<\/td>\n

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December<\/span><\/span><\/p>\n<\/td>\n<\/tr>\n

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5. Analysis of results<\/span><\/span><\/p>\n<\/td>\n

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Joint-analysis of measurements at the German and Estonian Coast<\/span><\/span><\/p>\n<\/td>\n

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October<\/span><\/span><\/p>\n<\/td>\n

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\u2026<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n

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Presentations about the results<\/b><\/p>\n