DETAILED STUDY ON CHARACTERISTICS OF SEICHES OBSERVED AROUND JAPAN

• NAKAI Keiji

  株式会社エコー 海象解析部

• HASHIMOTO Noriaki

  九州大学大学院 工学研究院 附属アジア防災研究センター

• NUKADA Kyoshi

  株式会社エコー 海象解析部

Bibliographic Information

Other Title

• 全国沿岸の副振動の出現特性の違いに関する詳細検討

Abstract

 Fundamental characteristics of seiches observed around Japan became clear in the previous paper. Seasonal variations of frequencies of seiches at most stations in the whole country are very similar except some stations situated in Hokkaido, Okinawa and inland sea areas. On the other hand, secular variations vary according to stations. Characteristics of two neighboring stations do not necessarily resemble. On the contrary, those of two remote stations are sometimes similar.<br> In this paper, all stations are classified into three groups using the probability density function of frequencies of seiches and the similarity coefficient of seasonal variations. The similarity of the seasonal variations has close relation to the shape (the maximum value) of the probability density function.<br> As for stations whose annual changes are much larger than neighboring ones, the tendencies of secular variations do not show good agreements with those of other stations.<br> It is suggested that the mean magnitude of seiches for many years is not necessarily a stable index for some stations.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 73 (2), I_737-I_742, 2017

  Japan Society of Civil Engineers

Keywords

• seiche
• correlation coefficient
• seasonal variation
• secular variation
• probability density function

Details

• CRID: 1390282680328624128
• NII Article ID: 130005995574
• DOI: 10.2208/jscejoe.73.i_737
• ISSN: 21854688
• Web Site: https://www.jstage.jst.go.jp/article/jscejoe/73/2/73_I_737/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed