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Periodic sea-level oscillation in Tokyo Bay detected with the Tokyo-Bay seafloor hyper-kilometric submarine deep detector (TS-HKMSDD)
Tanaka, H.K.M.; Aichi, M.; Balogh, S.J.; Bozza, C.; Coniglione, R.; Gluyas, J.; Hayashi, N.; Holma, M.; Joutsenvaara, J.; Kamoshida, O.; Kato, Y.; Kin, T.; Kuusiniemi, P.; Leone, G.; Lo Presti, D.; Matsushima, J.; Miyamoto, H.; Mori, H.; Nomura, Y.; Okamoto, N.; Oláh, L.; Steigerwald, S.; Shimazoe, K.; Sumiya, K.; Takahashi, H.; Thompson, L.F.; Tokunaga, T.; Yokota, Y.; Paling, S.; Varga, D. (2022). Periodic sea-level oscillation in Tokyo Bay detected with the Tokyo-Bay seafloor hyper-kilometric submarine deep detector (TS-HKMSDD). NPG Scientific Reports 12: 6097. https://dx.doi.org/10.1038/s41598-022-10078-2
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, meer
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  • Tanaka, H.K.M.
  • Aichi, M.
  • Balogh, S.J.
  • Bozza, C.
  • Coniglione, R.
  • Gluyas, J.
  • Hayashi, N.
  • Holma, M.
  • Joutsenvaara, J.
  • Kamoshida, O.
  • Kato, Y.
  • Kin, T.
  • Kuusiniemi, P.
  • Leone, G.
  • Lo Presti, D.
  • Matsushima, J.
  • Miyamoto, H.
  • Mori, H.
  • Nomura, Y.
  • Okamoto, N.
  • Oláh, L.
  • Steigerwald, S.
  • Shimazoe, K.
  • Sumiya, K.
  • Takahashi, H.
  • Thompson, L.F.
  • Tokunaga, T.
  • Yokota, Y.
  • Paling, S.
  • Varga, D.
Abstract
    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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