University of Oulu

M.Tanaka, H.K., Aichi, M., Balogh, S.J. et al. Periodic sea-level oscillation in Tokyo Bay detected with the Tokyo-Bay seafloor hyper-kilometric submarine deep detector (TS-HKMSDD). Sci Rep 12, 6097 (2022).

Periodic sea-level oscillation in Tokyo Bay detected with the Tokyo-Bay seafloor hyper-kilometric submarine deep detector (TS-HKMSDD)

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Author: Tanaka, Hiroyuki K. M.1,2; Aichi, Masaatsu1; Balogh, Szabolcs József3,2;
Organizations: 1University of Tokyo, Tokyo, Japan
2International Virtual Muography Institute (VMI), Global, Tokyo, Japan
3Wigner Research Centre for Physics, Budapest, Hungary
4The University of Salerno, Salerno, Italy
5Istituto Nazionale Di Fisica Nucleare-Laboratori Nazionali del Sud, Catania, Italy
6Durham University, Durham, UK
7Boulby Underground Laboratory, Saltburn-by-the-Sea, UK
8Kerttu Saalasti Institute, University of Oulu, Oulu, Finland
9Muon Solutions Oy Ltd, Saarenkylä, Finland
10Arctic Planetary Science Institute, Rovaniemi, Finland
11NEC Corporation, Tokyo, Japan
12Kyushu University, Fukuoka, Japan
13The University of Atacama, Copiapó, Chile
14The University of Catania, Catania, Italy
15Istituto Nazionale Di Fisica Nucleare, Catania, Italy
16Chiba University, Chiba, Japan
17The University of Sheffield, Sheffield, UK
18Geoptic Ltd, Warnborough, UK
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 2.3 MB)
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Language: English
Published: Springer Nature, 2022
Publish Date: 2022-05-04


Meteorological-tsunami-like (or meteotsunami-like) periodic oscillation was muographically detected with the Tokyo-Bay Seafloor Hyper-Kilometric Submarine Deep Detector (TS-HKMSDD) deployed in the underwater highway called the Trans-Tokyo Bay Expressway or Tokyo Bay Aqua-Line (TBAL). It was detected right after the arrival of the 2021 Typhoon-16 that passed through the region 400 km south of the bay. The measured oscillation period and decay time were respectively 3 h and 10 h. These measurements were found to be consistent with previous tide gauge measurements. Meteotsunamis are known to take place in bays and lakes, and the temporal and spatial characteristics of meteotsunamis are similar to seismic tsunamis. However, their generation and propagation mechanisms are not well understood. The current result indicates that a combination of muography and trans-bay or trans-lake underwater tunnels will offer an additional tool to measure meteotsunamis at locations where tide gauges are unavailable.

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Series: Scientific reports
ISSN: 2045-2322
ISSN-E: 2045-2322
ISSN-L: 2045-2322
Volume: 12
Article number: 6097
DOI: 10.1038/s41598-022-10078-2
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
Funding: This project was supported by the East Nippon Expressway Company Limited, the Geospatial Information Authority of Japan, the Ministry of Land, Infrastructure, Transport and Tourism, Ministry of Education, Culture, Sports, Science and Technology, and the Japan Society for the Promotion of Science.
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