Sedimentation History of the Sand Bars in the Entrance of Tofutsu Lake Evaluated by Means of MASW

• WATABE Yoichi

  Port and Airport Research Institute

• SASSA Shinji

  Port and Airport Research Institute

• HAYASHI Koichi

  Oyo Corporation

• KOBAYASHI Koichi

  Abashiri Fisheries Cooperative Association

Bibliographic Information

Other Title

• 濤沸湖における湖口周辺砂州の表面波探査を活用した堆積形成史の復元

Abstract

At the entrance of the Tofutsu Lake, which is one of the lagoons located along the Okhotsk Sea in Hokkaido, sand bars have been significantly developed. The objective of this study is to evaluate the sequential sedimentation history of the sand bars by means of MASW (Multi-channel Analysis of Surface Waves) technology. We found out that the sedimentation stratigraphy under the sand bars were significantly different from muddy to sandy, even though the sand bars apparently consisted of the same sandy material. From the shear wave velocity structure obtained in this study, we successfully restored the sequential sedimentation process. Also, the sedimentation history was consistent with an old aerial photograph and memories of local inhabitants.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 65 (1), 661-665, 2009

  Japan Society of Civil Engineers

Keywords

• sand bars
• sedimentation history
• geophysical exploration
• MASW

Details

• CRID: 1390001205317040512
• NII Article ID: 130004956365
• DOI: 10.2208/kaigan.65.661
• ISSN: 18838944
• ISSN: 18842399
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed