On the Water Level Fluctuations with Long Periods Off the Coast of Toyama Wan

• KAWAI Masashi

  富山高等専門学校商船学科

• KITAMURA Yasushi

  株式会社ソニック海象機器部

• GOTOH Yusuke

  新潟港湾空港技術調査事務所

• KAWAGUCHI Kiyoshi

  富山大学大学院理工学研究部

Bibliographic Information

Other Title

• 富山湾沿岸における長周期水位変動について

Abstract

It is known that there are periodic water level fluctuations off the coast of Toyama Wan. Investigation on the periodic water level fluctuations was carried out to prevent wave disasters by wave observations and wave generating experiment. Water levels were observed at three points of Toyama New Port, Iwasehama and Iida Wan. The water level fluctuations with the periods of about 10 minutes or more were investigated using the water level data observed at the three points and wave generating experiment data.<br>The results of this investigation are:<br>(1)The water level fluctuations with the periods from about 10 minutes to about 1 hour are proper oscillations driven by water level fluctuations due to moving low atmospheric pressure or earthquake, in horizontal shallow water off the coast.<br>(2)Proper oscillation with the period of about 36 minutes between the Toyama coast and the southern coast of apex of Noto peninsula, causes a beat phenomenon with the same period as the proper oscillation period to swells which invade Toyama Wan from north.<br>(3)There is greater tsunami risk on the coast of Iida Wan as compared with the Toyama coast.

Journal

• The Journal of Japan Institute of Navigation

  The Journal of Japan Institute of Navigation 135 (0), 19-26, 2016

  Japan Institute of Navigation

Keywords

• Oceanography
• Ocean engineers
• Water level fluctuations
• Proper oscillation
• Tsunami

Details

• CRID: 1390001205480244480
• NII Article ID: 130006935804
• DOI: 10.9749/jin.135.19
• ISSN: 21873275
• ISSN: 03887405
• Web Site: https://www.jstage.jst.go.jp/article/jin/135/0/135_19/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed