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WAVES, CURRENTS AND CHANNEL SEDIMENTATION IN OTOSHIBOE FISHING PORT
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- HORIE Takehito
- (株)アルファ水工コンサルタンツ
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- OBATA Yuta
- (株)アルファ水工コンサルタンツ
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- HASHIMOTO Kouji
- (株)アルファ水工コンサルタンツ
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- NOZAKA Yasuji
- 北海道水産林務部水産局漁港漁村課
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- TANAKA Hitoshi
- 東北大学大学院工学研究科
Bibliographic Information
- Other Title
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- 漁港航路の埋没時における波浪・流況特性
Description
In this study, wave observation, current observation and bed level change observation were conducted around the Otoshibe fishing port to reveal the channel sedimentation mechanism. Followings were major accomplishments of this study. From the results of bed level change observation, we find out that sand ascension at channel of Otoshibe Fishing port occurred for Nov. 26 to Dec. 2 and we find out three big shoaling for observation period. To reveal that developmental process of sand at water way we are conducted spectral analysis and EOF analysis. From the results of spectral analysis when big shoaling occurred, the value of spectral width parameter was found to be low. Then we find out that this reason is because wave grouping attacked the Otoshibe Fishing port. From the results of EOF analysis when big shoaling occurred, the contribution ratio of the first EOF mode is high. From the above results, the reasons causing bed level changes are considered big waves by winds or heave waves. When these waves attack to the Otoshibe port, it is considered that the sands transported by the left current are deposited.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 72 (2), I_1006-I_1011, 2016
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390282680329768576
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- NII Article ID
- 130005263201
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- ISSN
- 21854688
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed