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Keywords: seabed wave gauge
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Proceedings Papers

The 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami Observed By the GPS Buoys, Seabed Wave Gauges, And Coastal Tide Gauges of NOWPHAS On the Japanese Coast

Hiroyasu Kawai, Makoto Satoh, Koji Kawaguchi, Katsumi Seki
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-383
... buoys (hereinafter, GB) that are moored at a spot of 100–400 m in water depth and 10–20 km off the coast and measure the water level every second using real-time kinematic GPS technology; seabed wave gauges (WG) that measure the water level using the water pressure and ultrasonic waves every 0.5 s...
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View Paper titled, The 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami Observed By the GPS Buoys, <span class="search-highlight">Seabed</span> <span class="search-highlight">Wave</span> <span class="search-highlight">Gauges</span>, And Coastal Tide Gauges of NOWPHAS On the Japanese Coast
Open the PDF for The 2011 Off the Pacific Coast of Tohoku Earthquake Tsunami Observed By the GPS Buoys, <span class="search-highlight">Seabed</span> <span class="search-highlight">Wave</span> <span class="search-highlight">Gauges</span>, And Coastal Tide Gauges of NOWPHAS On the Japanese Coast in another window
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Proceedings Papers

The 2010 Chilean Tsunami Observed On the Japanese Coast By GPS Buoys, Seabed Wave Gauges And Coastal Tide Gauges of NOWPHAS

Hiroyasu Kawai, Makoto Satoh, Masafumi Miyata, Takashi Kobayashi
Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-349
... than 50 min. Due to the coastal bathymetry, the tsunami components of longer than 30 min were amplified from the GPS buoy sites to their nearby seabed wave gauge sites at 30–50 m in water depth and then the shorter components of 10–20 min were significantly amplified to the coastal tide gauge sites...
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View Paper titled, The 2010 Chilean Tsunami Observed On the Japanese Coast By GPS Buoys, <span class="search-highlight">Seabed</span> <span class="search-highlight">Wave</span> <span class="search-highlight">Gauges</span> And Coastal Tide Gauges of NOWPHAS
Open the PDF for The 2010 Chilean Tsunami Observed On the Japanese Coast By GPS Buoys, <span class="search-highlight">Seabed</span> <span class="search-highlight">Wave</span> <span class="search-highlight">Gauges</span> And Coastal Tide Gauges of NOWPHAS in another window
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Proceedings Papers

Improvement of the Japanese NOWPHAS Network By Introducing Advanced GPS Buoys

Toshihiko Nagai, Katsuyoshi Shimizu, Makoto Sasaki, Akihiro Murakami
Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-240
... shallower seabed wave gauges, accentuating the importance of deep-sea wave observation to estimate offshore wave characteristics. INTRODUCTION Two sets of the GPS buoy system were installed off the Northern Pacific Coast of Japan, one in March and the other in April 2007 by the Ports and Airports...
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View Paper titled, Improvement of the Japanese NOWPHAS Network By Introducing Advanced GPS Buoys
Open the PDF for Improvement of the Japanese NOWPHAS Network By Introducing Advanced GPS Buoys in another window
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