Tomoya Shimura
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SUBGRID SCALE MODELING OF STORM SURGE INUNDATION IN COASTAL URBAN AREA CONSIDERING VOLUME OF BUILDINGS Open
The increasing intensity of typhoons associated with climate change is projected leading to a higher risk of coastal inundation in Japan’s three major metropolitan areas. Therefore, assessing the long-term risk of the coastal urban floodin…
MODELING WIND WAVE DEVELOPMENT BASED ON PHASE-RESOLVING WAVE MODEL AND ITS APPLICATION TO TYPHOON JEBI in 2018 Open
The extreme wave hazards caused by typhoons in bays are increasing. An accurate deformation evaluation of typhoon-induced high waves in coastal regions is critical to mitigate disasters. High wave deformation is an intermediate phenomenon …
IMPACT OF OCEAN COOLING AND WAVE EFFECTS ON TYPHOON MODELING FOR 2018 TYPHOON JEBI Open
In recent years, tropical cyclones in the northwestern Pacific have been predicted to intensify due to the warming ocean caused by global warming [1]. Especially in Japan, typhoons have caused severe wind and flood damage. Highly accurate …
CALIBRATION OF SHORELINE PREDICTION MODEL USING ENSEMBLE KALMAN FILTER Open
The increasing greenhouse gas emissions induce global warming, leading to sea-level rise (SLR). In particular, climate change has already been becoming apparent in the coastal environment. The most significant variation due to SLR is shore…
IMPACT OF DATA ASSIMILATION FOR TYPHOON-GENERATED EXTREME WAVE BASED ON DRIFTING WAVE BUOY OBSERVATION Open
Typhoon-generated extreme waves are a major factor to be considered for coastal disaster risk management in the mid- latitude of the North Western Pacific and the North Atlantic. Therefore, improving the accuracy of the spectral wave model…
RELATION OF GLOBAL AND REGIONAL ATMOSPHERIC-WAVE CLIMATE SYSTEMS Open
Climate change and variability are becoming important for coastal engineering research. Although the impact of climate change impact on the wave climate became clear after IPCC 5th (2012) and 6th (2021) Assessment Reports, the characterist…
REGIONAL CHARACTERISTICS OF TSUNAMI AMPLITUDES IN JAPAN WITH VARIOUS FAULT PARAMETERS Open
Future tsunami events include a variety of uncertainties. Especially on megathrust earthquake tsunamis, the tsunami hazard intensity at coastal cities highly depends on the source characteristics such as fault width, length, slip distribut…
IMPACT OF ATMOSPHERIC SPATIAL-TEMPORAL RESOLUTION ON STORM SURGE SIMULATION AND RELATED DAMAGE CHANGE - CASE STUDY ON 2018 TYPHOON JEBI - Open
Typhoon intensity is projected to increase in the future due to climate change (IPCC AR6). Accordingly, future storm surge height can increase, resulting in an expected urban damage increase. It is important to know the relation between ty…
View article: Contribution of microtopography off the Ryukyu Islands to coastal sea-level amplification during the 2022 Tonga meteotsunami
Contribution of microtopography off the Ryukyu Islands to coastal sea-level amplification during the 2022 Tonga meteotsunami Open
The January 2022 Tonga volcanic eruption generated atmospheric pressure waves that propagated over the ocean’s surface and triggered a meteotsunami. This meteotsunami caused significant amplitudes exceeding 100 cm along various Pacific coa…
The 20‐Year Highest Tropical Cyclone‐Generated Waves Associated With the Maximum Energy of Seismic Noises Open
The extreme winds of tropical cyclones generate high waves over the ocean, causing severe damage to offshore facilities and coastal communities. Disaster mitigation requires accurate prediction and forecasting of the highest potential wave…
The worst-class tropical cyclone-generated high waves identified by seismic noises Open
The extreme winds of tropical cyclones generate high waves over the ocean, causing severe damage to offshore facilities and coastal communities1. Disaster mitigation requires accurate prediction and forecasting of the worst-class high wave…
Footprint of the air-sea momentum transfer saturation observed by ocean wave buoy network in extreme tropical cyclones Open
Tropical cyclones are one of the most destructive natural phenomena, causing tremendous coastal disasters worldwide. The maximum intensity of tropical cyclones is determined by momentum and heat transfer at the air-sea interface. Momentum …
SEISMIC AND TSUNAMI HAZARD ASSESSMENT OF COASTAL BUILDINGS IN WEST COAST OF JAPAN Open
Coastal cities are exposed to various types of disaster risks, such as tsunamis and storm surges. In particular, a megathrust earthquake has a potential to cause severe damage to cities almost simultaneously in terms of both seismic ground…
GLOBAL OCEAN WAVES AND STORM SURGE CHANGES UNDER A WARMING CLIMATE Open
Impact assessments of climate change on coastal hazard risk are conducted in order to evaluate how coastal communities should adapt their coastal defense systems and other mitigation measures going forward. In this context, global mean sea…
ANALYSIS OF VERTICAL LAND MOTIONS ALONG THE CHILEAN COAST CONSIDERING SEA LEVEL VARIABILITY, EARTHQUAKE AND CRUSTAL DEFORMATION OF SUBDUCTION ZONES Open
Chile is one of the most seismic countries world wide with approximately 86.000 km of coastline and a permanent need for development and management. Because of the Nazca plate subducting the South American plate, coastal evolution is model…
LONG-TERM PROJECTION OF EXTREME STORM SURGE IN JAPAN USING MAXIMUM POTENTIAL STORM SURGE HEIGHT MODEL BASED ON HIGHRESMIP EXPERIMENT Open
The recent IPCC report indicated that the ratio of strong tropical cyclones (TCs) can increase due to climate change, and there is concern that the intensified TCs would increase the risk of storm surges. However, a storm surge is an extre…
EXTREME STORM SURGES DUE TO GLOBAL WARMING IN EAST ASIA BASED ON A MAXIMUM POTENTIAL STORM SURGE MODEL Open
Based on climate projections considering global warming, various impact assessments have been made for temperature, precipitation, water resources, and sea-level rise (e.g., IPCC AR6, 2021). In coastal areas, sea-level rise is mainly impor…
View article: MODELING OF WIND-WAVE GROWTH IN STRONG WIND CONDITIONS BASED ON PHASE-RESOLVING WAVE MODEL
MODELING OF WIND-WAVE GROWTH IN STRONG WIND CONDITIONS BASED ON PHASE-RESOLVING WAVE MODEL Open
Recently, coastal disaste have occurred by typhoons passing through bays, such as Typhoon Jebi in 2018 and Typhoon Hagibis in 2019 (Mori et al.(2019), Shimozono et al.(2020)). The current wave model cannot simultaneously account for the de…
Ocean wave buoy network in extreme tropical cyclones detects the saturation of air-sea momentum transfer Open
Tropical cyclone is one of the most destructive natural phenomena, causing tremendous disasters worldwide. The maximum intensity of tropical cyclones is determined by momentum and heat transfer at the air-sea interface. Momentum transfer c…