Academic Journal
Characteristics of abnormal large waves measured from coastal videos
| العنوان: | Characteristics of abnormal large waves measured from coastal videos |
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| المؤلفون: | Yoo, J., Lee, D.-Y., Ha, T.-M., Cho, Y.-S., Woo, S.-B. |
| المصدر: | eISSN: 1684-9981 |
| سنة النشر: | 2018 |
| المجموعة: | Copernicus Publications: E-Journals |
| الوصف: | Recently, tsunami-like sea-level oscillations occurred in a region of the west coast of Korea (i.e. in the eastern part of the Yellow Sea), during a typical rough spring weather episode on 4 May 2008. The analysis of these tsunami-like abnormal waves focuses solely on the videos recorded by a CCTV surveillance system in the directions of the entrance and inside parts of a local coastal pocket beach. Time-series of the vertical and horizontal sea surface oscillations were extracted from the video recordings through calibrating image distortions, accumulating 1-D intensity arrays along the line transects of interest in time, and identifying the trajectories of the oscillations. Frequency and time-domain analysis of the time-series signals revealed that the maximum height of the tsunami-like waves reached 1.3 m, having a dominant period of 185 s (3.1 min). In addition, the results indicate that the celerity of the maximum height wave approximated 7.3 m/s, which lead to the losses of life of several people who could not escape immediately from the fast tsunami flooding the shore. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://nhess.copernicus.org/articles/10/947/2010/ |
| DOI: | 10.5194/nhess-10-947-2010 |
| الاتاحة: | https://doi.org/10.5194/nhess-10-947-2010 https://nhess.copernicus.org/articles/10/947/2010/ |
| رقم الانضمام: | edsbas.114B9C84 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5194/nhess-10-947-2010 |
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