- Flood Risk Assessment and Management
- Hydrology and Watershed Management Studies
- Climate variability and models
- Cryospheric studies and observations
- Meteorological Phenomena and Simulations
- Tropical and Extratropical Cyclones Research
- Energy, Environment, Agriculture Analysis
- Climate change and permafrost
- Disaster Management and Resilience
- Precipitation Measurement and Analysis
- Coastal and Marine Dynamics
- Soil erosion and sediment transport
- earthquake and tectonic studies
- Metabolism and Genetic Disorders
- Hydrological Forecasting Using AI
- Earthquake and Disaster Impact Studies
- Methane Hydrates and Related Phenomena
- Hydrology and Sediment Transport Processes
- Hydrology and Drought Analysis
- Urban and spatial planning
- Amino Acid Enzymes and Metabolism
- Earthquake and Tsunami Effects
- Geophysics and Gravity Measurements
- Water and Land Management
- Geological and Geophysical Studies
Toyama Prefectural University
2016-2025
Tohoku University
1993-2017
Royal Forest Department
2015
Hydrologic Research Center
2010-2012
University of California, Davis
2009-2012
Hokkaido University
2012
Watershed
2012
Chuo University
2008
Abstract. Three weeks after the deadly Bohol earthquake of Mw 7.2, which claimed at least 222 victims, another disaster struck Philippines. This time, Super Typhoon Haiyan, also known as Yolanda in Philippines, devastated Eastern Visayas islands on 8 November 2013. Its classification a super typhoon was based its maximum sustained 1 min surface wind speed 315 km h−1, is equivalent to strong Category 5 hurricane Saffir–Simpson scale. one deadliest events Philippines' history, 1897 and 1912...
Abstract A moment magnitude ( M w ) 7.5 earthquake occurred on January 1, 2024, at the northern tip of Noto Peninsula, Central Japan, triggering a large tsunami. Seismological and geodetic observations revealed rupture mapped submarine active faults. While proximal segment ruptures have been well resolved by previous research, far offshore segments posed challenges for onshore-based inversions. This emphasizes necessity comprehensive study fault through tsunami modeling. Here, we aimed to...
On January 1 2024, at 16:10 JST, an earthquake of Mw 7.5 occurred underneath the Noto Peninsula Ishikawa Prefecture, Japan. This event caused a cascading disaster impact on cities in through series strong shakes, ground motions, slope failures, liquefaction, fire, and tsunamis. The tsunami first reached Suzu City few minutes after earthquake, eventually affecting approximately 340 km coast from to Niigata Prefectures. Coastal Engineering Committee Japan Society Civil Engineers conducted...
A methodology for maximum precipitation (MP) estimation that uses a physically based numerical atmospheric model is proposed in this paper. As case study, the model-based 72-h MP was estimated American River watershed (ARW) California December 1996–January 1997 flood event. First, regional model, MM5, calibrated and validated historical major storm event ARW, on basis of U.S. National Center Atmospheric Research (NCAR) reanalysis data to demonstrate capability during period. Then,...
Abstract An earthquake with a moment magnitude of 7.5 (Mw) struck the northern Noto Peninsula, Ishikawa Prefecture, Japan, at 16:10 local time on January 1, 2024. This triggered tsunami that propagated along coastline Ishikawa, Toyama, and Niigata Prefectures facing Sea Japan significantly damaged coastal communities infrastructure. Approximately 70 researchers from 23 universities or other institutes throughout formed joint research group to conduct post-tsunami survey 340 km stretch coast....
The warming of the Earth's atmosphere system will change temperature and precipitation distributions across globe. This affect hydrological cycle and, therefore, hydrology river basins worldwide. In this study, we model stream flow Chao Phraya River Basin (CPRB), Thailand, in response to two climate projection data sets under scenario A1B Special Report on Emissions Scenarios. We used Japan Meteorological Research Institute (MRI) atmospheric general circulation 3.1 3.2 output as input a...
Field measurements and numerical simulations are used to assess the resons for different types of water-related structural damage observed in Tacloban Eastern Samar. Coastal saw heavy due wind waves riding atop storm surge, while inland experienced much lighter because were not present (though inundation by surge soiled structures). Samar little wind-induced or pressure-induced setup, but breaking-wave-induced setup over reef combined with wave runup infragravity motions caused along coast.
Jakarta is facing several issues related to flooding, including land subsidence in the coastal area and rapid land-use/cover changes upstream area. In this study, we analyzed effects of future use using a rainfall-runoff flood inundation model. The land-use scenarios were projected based on SLEUTH model, was an extrapolation current state Jakarta.
ABSTRACT Jakarta, a bustling Asian city, grapples with flooding issues due to urbanization, land subsidence, and climate changes. To tackle these challenges, an innovative solution is needed. This study assesses paddy field dam (PFD) address complex flood issues. PFD the latest innovation of countermeasure from Japan, by applying water storage concept on hold runoff before it flows into river. We compared four other countermeasures such as embankment, river dredging, widening, long storage....
Among the key problems in atmospheric and hydrologic sciences are modeling of interaction between atmosphere land surface hydrology while also quantifying surface/subsurface flow processes both vertical lateral directions, heterogeneity subsurface processes. Meanwhile, standard water resources engineering practice, planning management is performed over geographical region a watershed. To address these issues, model coupled atmospheric-hydrologic at watershed scale, Watershed Environmental...
Abstract The warming of the Earth's atmosphere system is likely to change temperature and precipitation, which may affect climate, hydrology water resources at river basins over world. importance becomes even greater in snow or glacier dominated where it controls snowmelt processes during late‐winter, spring summer months. In this study hydrologic responses streamflow Pyanj Vaksh River climate are analysed with a watershed model, based on downscaled atmospheric data as input, order assess...
The purpose of this research is to assess the future flood risk in rapidly urbanizing cities under climate change. A inundation model and a damage costs were employed project risk. We combinations eight global models (GCMs) three representative concentration pathways (RCPs) for precipitation represent Land-use change land subsidence information urban development effects. expected annual (EADC) also calculated explain severity In addition, approach was used estimate asset values by comparing...
Abstract Jakarta is the capital of Indonesia and considered one most vulnerable cities to climate-related disasters, including flooding, sea-level rise, storm surges. Therefore, development a flood-forecasting system for crucial. However, accurate prediction flooding in challenging because short flood concentration time highly urbanized basins shortage rainfall data poorly gauged areas. The aim this study simulate recent inundation using global satellite mapping precipitation (GSMaP)...
The objective of this study is to evaluate the potential Watershed Environmental Hydrology Hydro-Climate Model (WEHY-HCM) for modeling runoff at ungauged or sparsely gauged watersheds. WEHY-HCM employs an atmospheric module (fifth generation mesoscale model, MM5) that coupled with its process-based watershed environmental hydrology (WEHY) module. In component was utilized dynamical downscaling coarse U.S. National Center Prediction/National Atmospheric Research (NCEP/NCAR) historical global...
Abstract The experiments with three general circulation models ( GCMs ) by regional atmospheric RAMs for the dynamical downscaling DDS have been performed to evaluate uncertainty in global warming response during summertime Hokkaido, Japan. results of a 10‐year RAM integration nested into GCM under present or future climate conditions were synthesized after applying bias correction. For target decades which global‐mean temperature increases 2 K each , indicate that surface air and...
<title>Abstract</title> A moment magnitude (M<sub>w</sub>) 7.5 earthquake occurred on January 1, 2024, at the northern tip of Noto Peninsula, Central Japan, triggering a large tsunami. Seismological and geodetic observations revealed rupture mapped submarine active faults. While proximal segment ruptures were well resolved by existing researches, distal segments posed challenges for onshore tsunami observations, prompting need comprehensive study wave sources. We aimed to examine propagation...
Abstract Climate change due to global warming is a public concern in Central Asia. Because of specific orography and climate conditions, the republic Tajikistan considered as main glacial center In this study, regional impacts two large basins Tajikistan, Pyanj Vaksh River located upstream sector Amu Darya basin are analysed. A statistical regression method with model output statistics corrections using ground observation data, Willmott archived dataset GSMaP satellite driven dataset, was...