Secular change of semidiurnal tide in the Ariake Sea, Japan

Akira Tai; Kaori Tanaka; Tomonori Saita

Secular change of semidiurnal tide in the Ariake Sea, Japan

Akira Tai, Kaori Tanaka, Tomonori Saita

Research output: Contribution to conference › Paper › peer-review

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 language	English
Pages	1197-1208
Number of pages	12
Publication status	Published - Jan 1 2013
Event	10th Global Congress on ICM: Lessons Learned to Address New Challenges, EMECS 2013 - MEDCOAST 2013 Joint Conference - Marmaris, Turkey Duration: Oct 30 2013 → Nov 3 2013

Other

Other	10th Global Congress on ICM: Lessons Learned to Address New Challenges, EMECS 2013 - MEDCOAST 2013 Joint Conference
Country/Territory	Turkey
City	Marmaris
Period	10/30/13 → 11/3/13

All Science Journal Classification (ASJC) codes

Geography, Planning and Development

Cite this

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title = "Secular change of semidiurnal tide in the Ariake Sea, Japan",

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.",

author = "Akira Tai and Kaori Tanaka and Tomonori Saita",

year = "2013",

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day = "1",

language = "English",

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T1 - Secular change of semidiurnal tide in the Ariake Sea, Japan

AU - Tai, Akira

AU - Tanaka, Kaori

AU - Saita, Tomonori

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Y1 - 2013/1/1

N2 - 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.

AB - 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.

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T2 - 10th Global Congress on ICM: Lessons Learned to Address New Challenges, EMECS 2013 - MEDCOAST 2013 Joint Conference

Y2 - 30 October 2013 through 3 November 2013

ER -

Secular change of semidiurnal tide in the Ariake Sea, Japan

Abstract

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All Science Journal Classification (ASJC) codes

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