CHIKASADA YAMAMOTO Naotaka / Chief Researcher

Affiliation

• Earthquake and Tsunami Research Division

  Ocean Earthquake and Tsunami Research Laboratory (tentative)

• Network Center for Earthquake, Tsunami and Volcano

  Ocean Bottom Seismic and Tsunami Observation Network Laboratory

  Strong Motion Seismograph Network Laboratory

• Japan Trench Seismic and Tsunami Observation Network Project Office

Research fields

• Real-time tsunami forecast
• Geographic Information System (GIS): EasyWMS / GeoSNSNotirifer / CS-W / MapServer
• Security: PKI / Grid Security Infrastructure (GSI) / Tsukuba-GAMA / MyProxy
• Storage: Network filesystem / Gfarm
• System construction: Global Earth Observation Grid (GEO Grid) / gbank / QuiQuake / ASTER hotspot detection system
• Database: SMOKA
• Small solar system object: Trans-Neptunian object / Comet / Asteroid

Affiliated societies

• American Geophysical Union: AGU
• The Seismological Society of Japan: SSJ
• Japn Geoscience Union: JpGU
• The Japanese Society for Planetary Science: JSPS

Publications

Peer reviewed papers

• Saito, T., T. Kubota, N. Y. Chikasada, Y. Tanaka and O. Sandanbata (2021), "Meteorological tsunami generation due to sea-surface pressure change: Three-dimensional theory and synthetics of ocean-bottom pressure change", JGR - Oceans, accepted
• Takagi, R., G. Toyokuni, N. Chikasada (2021), "Ambient noise correlation analysis of S-net records: extracting surface wave signals below instrument noise levels", GJI, 224(3), 1640-1657, doi:10.1093/gji/ggaa548
• Baba, T., N. Chikasada, Y. Nakamura, G. Fujie, K. Obana, S. Miura and S. Kodaira (2020), "Deep Investigations of Outer‐Rise Tsunami Characteristics Using Well‐Mapped Normal Faults Along the Japan Trench", JGR Solid Earth, 125(10), doi:10.1029/2020JB020060
• Kubota, T., Saito, T., Chikasada, N. Y., & Suzuki, W. (2020). Ultra-broadband seismic and tsunami wave observation of high-sampling ocean-bottom pressure gauge covering periods from seconds to hours. Earth and Space Science, accepted.
• N. Chikasada (2019), "Short-wavelength Tsunami Observation Using Deep Ocean Bottom Pressure Gauges", Proceedings of the Twenty-ninth (2019) International Ocean and Polar Engineering Conference, Vol. 3, 3154-3159. [Proceedings]
• N. Yamamoto, S. Aoi and K. Hirata, W. Suzuki, T. Kunugi, H. Nakamura, 2017, "DEVELOPMENT OF REAL-TIME TSUNAMI INUNDATION FORECAST METHOD USING A DENSE OFFSHORE OBSERVATION NETWORK" , 16th World Conference on Earthquake Engineering, 16WCEE 2017, Paper N° 1952. [Proceedings]
• S. Aoi, N. Yamamoto, W. Suzuki, K. Hirata, T. Kunugi, H. Nakamura,T. Kubo, T. Maeda and S. Suzuki, 2017, "REAL-TIME TSUNAMI INUNDATION FORECAST SYSTEM USING S-net DATA" , 16th World Conference on Earthquake Engineering, 16WCEE 2017, Paper N° 517. [Proceedings]
• N. Yamamoto, S. Aoi, K. Hirata, W. Suzuki, T. Kunugi, and H. Nakamura (2016), "Multi-index method using offshore ocean-bottom pressure data for real-time tsunami forecast", Earth, Planets and Space, 68(1), 128, doi:10.1186/s40623-016-0500-7, Google Scholer
• N. Yamamoto, K. Hirata, S. Aoi, W. Suzuki, H. Nakamura, and T. Kunugi (2016), "Rapid estimation of tsunami source centroid location using a dense offshore observation network", Geophysical Research Letter, 43(9), 4263–4269, doi:10.1002/2016GL068169.

Non-peer reviewed papers

Oral or poster presentations

• N. Chikasada and T. Baba, "Real-time Tsunami Forecasting for the Outer-rise Earthquakes Based on Deep Ocean Bottom Pressure Data", AOGS 2019, IG07-A013, 2019.8.1, Singapore
• N. Chikasada and T. Baba, "Special Treatments for the Outer-rise Earthquake Tsunamis in the Near-field Tsunami Forecasting using the Real-time Deep Ocean Bottom Pressure Data", IUGG2019, IUGG19-1873, 2019.6.12, Motreal
• N. Chikasada, "Short-wavelength Tsunami Observation Using Deep Ocean Bottom Pressure Gauges", ISOPE2019, 2019.6.18, Honolulu
• N. Yamamoto, S. Aoi and K. Hirata, W. Suzuki, T. Kunugi, H. Nakamura, 2017, "DEVELOPMENT OF REAL-TIME TSUNAMI INUNDATION FORECAST METHOD USING A DENSE OFFSHORE OBSERVATION NETWORK", 16th World Conference on Earthquake Engineering, 16WCEE 2017, Paper N° 1952.
• N. Yamamoto, S. Aoi and K. Hirata, W. Suzuki, T. Kunugi, H. Nakamura, 2015, Multiple indices method for real-time tsunami inundation forecast using a dense offshore observation network, AGU FALL MEETING, NH13E-05.
• N. Yamamoto, S. Aoi and K. Hirata, W. Suzuki, T. Kunugi, H. Nakamura, 2015, A new algorithm for real-time near-field tsunami inundation forecast using a dense offshore tsunami observation network, 26th IUGG General Assembly, IUGG-2320.
• N. Yamamoto, S. Aoi, K. Hirata, T. Kunugi, H. Nakamura and W. Suzuki, 2014, Feasibility Study for a New Real-Time Tsunami Forecast using Seafloor Observation Network for Earthquakes and Tsunamis (S-net), The 6th International Workshop on Natural Disaster Reduction and Management among Korea-Taiwan-Japan, .
• N. Yamamoto, S. AOI, K. HIRATA, T. KUNUGI, H. NAKAMURA and W. SUZUKI, 2014, A New Algorithm for Real-Time Tsunami Forecast Using a Dense Network of Cabled Ocean-Bottom Pressure Gauges, AGU FALL MEETING, S14A-06.
• N. Yamamoto, S. Aoi, K. Hirata, T. Kunugi, H. Nakamura and W. Suzuki, 2014, Feasibility study for tsunami forecast by using Seafloor Observation Network for Earthquakes and Tsunamis (S-net), 10th Joint Meeting of UJNR Panel on Earthquake Research, O-27.

System

Tsunami Mitigation Research Portal Site: