Secular change of semidiurnal tide in the Ariake Sea, Japan

Akira Tai, Kaori Tanaka, Tomonori Saita

    Research output: Contribution to conferencePaper

    1 Citation (Scopus)

    Abstract

    There are a lot of tidal flats in the Ariake Sea and the Yatsushiro Sea. The area has been reduced by large reclamation since the beginning of twentieth century. Changes in the coastline could have made the eigen-oscillation period of the bays short, which might decrease amplification of tidal amplitude in an inner bay. We tried to clarify the effect using two approaches:(1) harmonic analysis of observational water level data at Misumi and (2) numerical experiments using a three-dimensional Princeton Ocean Model (POM). As a results of this study, it was clarified data decrease of outer sea tidal amplitude was the most influential factor in long-term changes of the M2 tidal amplitude and the M2 tidal amplitude in 2000s was the smallest value over the past 80 years.

    Original languageEnglish
    Pages1197-1208
    Number of pages12
    Publication statusPublished - Jan 1 2013
    Event10th Global Congress on ICM: Lessons Learned to Address New Challenges, EMECS 2013 - MEDCOAST 2013 Joint Conference - Marmaris, Turkey
    Duration: Oct 30 2013Nov 3 2013

    Other

    Other10th Global Congress on ICM: Lessons Learned to Address New Challenges, EMECS 2013 - MEDCOAST 2013 Joint Conference
    CountryTurkey
    CityMarmaris
    Period10/30/1311/3/13

    All Science Journal Classification (ASJC) codes

    • Geography, Planning and Development

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  • Cite this

    Tai, A., Tanaka, K., & Saita, T. (2013). Secular change of semidiurnal tide in the Ariake Sea, Japan. 1197-1208. Paper presented at 10th Global Congress on ICM: Lessons Learned to Address New Challenges, EMECS 2013 - MEDCOAST 2013 Joint Conference, Marmaris, Turkey.