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Ship-borne wave gauge using GNSS interferometric reflectometry Coast. Eng. J. (IF 2.4) Pub Date : 2024-04-14 Kaoru Ichikawa, Jing Qiao Zhu, Joushiro Noda, Ryosuke Sakemi, Kei Yufu, Kuniaki Matsuura
To obtain wide coverage and frequent wave observations, low-cost methods to observe significant wave heights and wave periods from moving vessels were developed by using Global Navigation Satellite...
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Correction Coast. Eng. J. (IF 2.4) Pub Date : 2024-04-08
Published in Coastal Engineering Journal (Ahead of Print, 2024)
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A metastatistical frequency analysis of extreme storm surge hazard along the US coastline Coast. Eng. J. (IF 2.4) Pub Date : 2024-04-02 Georgios Boumis, Hamed R. Moftakhari, Hamid Moradkhani
Frequency analysis of extreme storm surge is crucial for coastal flood risk assessments. To date, such analyses are based on traditional extreme value theory (EVT) and its associated generalized ex...
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Wind velocity estimates from wave observing platforms Coast. Eng. J. (IF 2.4) Pub Date : 2024-03-27 K. C. Mudd, A. Ho, A. Amador, J. Lodise, J. Behrens, S. T. Merrifield
Near-surface ocean wind measurements are important for weather forecasting, determining surface transports, and estimating air-sea interactions; however, in-situ wind observations are often limited...
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A new generation of tsunami inundation maps of Chilean cities: tsunami source database and probabilistic hazard analysis Coast. Eng. J. (IF 2.4) Pub Date : 2024-03-25 Rafael Aranguiz, Marilym Ramos, Ignacio Sepúlveda, Paula Villagra
Tsunami inundation maps are crucial for understanding the impact of tsunamis and planning mitigation measures. Our research focuses on creating a database of stochastic tsunami scenarios along the ...
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Probabilistic tsunami hazard assessment for the makran subduction zone using logic tree and stochastic rupture sources Coast. Eng. J. (IF 2.4) Pub Date : 2024-03-13 Payam Momeni, Katsuichiro Goda
The Makran Subduction Zone (MSZ) in the northwestern Indian Ocean can generate large tsunamigenic thrust earthquakes affecting the coastal regions of Pakistan, Iran, Oman, and western India. In thi...
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Wave-gravity-induced sediment transport on steep shoreface Coast. Eng. J. (IF 2.4) Pub Date : 2024-02-21 Wenang Xie, Takenori Shimozono, Yoshimitsu Tajima
This research is dedicated to examining downslope sediment transport on steep shorefaces. We present a model that incorporates nonlinear surface wave profiles, sediment movement thresholds, and slo...
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Performance of ERA5 wind speed and significant wave height within Extratropical cyclones using collocated satellite radar altimeter measurements Coast. Eng. J. (IF 2.4) Pub Date : 2024-02-11 John Lodise, Sophia Merrifield, Clarence Collins, James Behrens, Eric Terrill
Similar in strength to hurricanes, Extratropical Cyclones (ECs) are responsible for innavigable sea states, coastal inundation and erosion, and subsequent destruction to coastal infrastructure. Acr...
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UAV close-range photogrammetry for breakwater damage assessment in a Tyrrhenian coastal site Coast. Eng. J. (IF 2.4) Pub Date : 2024-02-13 Aniello Florio, Diana Di Luccio, Umberto Robustelli, Matteo Cutugno, Giovanni Pugliano, Guido Benassai
Assessing breakwater damage following intense storm events is crucial for preventing failures that can compromise safety and service quality. This study focuses on assessing the impact of a severe ...
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Variability in surge levels in communities adjacent to the Houston Ship Channel industrial Corridor to changes in Hurricane characteristics Coast. Eng. J. (IF 2.4) Pub Date : 2024-02-05 Sunghoon Han, James M. Kaihatu
The sensitivity of hurricane-driven storm surge in the Houston Ship Channel Industrial Corridor to variations in storm characteristics is studied. Hurricane surge from Hurricane Ike from 2008 was s...
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Coastal Data Information Program: advances in measuring and modeling wave activity, climate, and extremes Coast. Eng. J. (IF 2.4) Pub Date : 2024-01-31 James Behrens, Corey Olfe, Grant Cameron, Randolph Bucciarelli, Ross Timmerman, Darren Wright, John Lodise, Sophia Merrifield, Eric Terrill
The Coastal Data Information Program (CDIP) provides wave data to the public in near real-time, maintains an operational wave model for the California coast, and is engaged in ocean wave research o...
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Performance of moored GPS wave buoys Coast. Eng. J. (IF 2.4) Pub Date : 2024-01-30 Clarence O. Collins, Patrick Dickhudt, Jim Thomson, Tony de Paolo, Mark Otero, Sophia Merrifield, Eric Terrill, Martha Schonau, Lancelot Braasch, Theresa Paluszkiewicz, Luca Centurioni
Small, lightweight, and easy-to-deploy Global Positioning Satellite (GPS)-based miniature wave buoys (mini-buoys) are increasing in popularity. Most are deployed as Lagrangian drifters, so their ut...
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Oblique wave trapping by periodic array of two-layer pile rock breakwaters placed on uneven seabed Coast. Eng. J. (IF 2.4) Pub Date : 2024-01-09 E. Dhanunjaya, E. Sanjeeva Rayudu, V. Venkateswarlu
This research work evaluates the wave trapping efficiency of the periodic array of two-layer pile-rock breakwaters (TPRBs) placed far away from vertical rigid wall. The analytical model is develope...
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Extraction of ocean wave parameters from video images Coast. Eng. J. (IF 2.4) Pub Date : 2024-01-07 Hitoshi Tamura, Shinya Hosokawa, Isamu Fujita, Shota Okura, Shota Homma, Koji Kawaguchi, Ryoji Uchiyama, Hiroshi Yagi
In this study, we proposed a method for estimating windsea parameters from the images captured by the surveillance camera installed in coastal areas for practical use. Camera images were acquired i...
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Experimental investigation into the effects of strong winds on the transport of overtopping water mass over a vertical seawall Coast. Eng. J. (IF 2.4) Pub Date : 2024-01-01 Naoto Inagaki, Tomoya Shibayama, Ryota Nakamura, Kunihiko Ishibashi, Miguel Esteban
Hydraulic experiments using a wave flume with a wind tunnel at a scale of 1/40 were carried out to investigate the effect of wind on wave overtopping of a vertical seawall. To ascertain the possibl...
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Effect of wave-current flow on double-averaged turbulence properties over rough bed of hemispherical obstacles Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-22 Jayanta Shounda, Krishnendu Barman, Koustuv Debnath
Combined wave-current turbulent characteristics are investigated over a rough bed comprising of hemispheres positioned at different spacings (p/r = 4, 6, and 8; p is the patch distance and r is the...
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Improved XBeach model and its application in coastal beach evolution under wave action Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-22 Hang Yu, Zhonghua Weng, Genfa Chen, Xin Chen
Beach evolution is one of the key issues in coastal engineering. High computational efficiency model of beach evolution is limited by strong wave nonlinearity, flow acceleration, and sediment phase...
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Real-time tsunami forecasting system with nonlinear effects using Green’s functions: application to near-shore tsunami behavior in complex bay topography Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-22 Yusuke Yamanaka, Kana Hashimoto, Yoshimitsu Tajima
In this study, a real-time tsunami estimation method was developed using the linear superposition of Green’s functions, which account for nonlinear tsunami effects around coastal areas. To this end...
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Projections of future beach loss along the Chinese coastline due to sea level rise Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-22 Shuai Xiao, Keiko Udo, Yi Zhang
Beach loss caused by sea level rise (SLR) has become one of the most severe worldwide issues. China is also affected because of its dense population and developed economy along the long coastline. ...
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Coastal adaptation to climate change in Japan: a review Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-22 Fuminori Kato, Yoshimitsu Tajima
In parallel with many other countries, the government of Japan has started to tackle coastal adaptations to climate change. In 2020, the national Basic Policy for Coastal Protection was revised to ...
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Machine learning-driven approach to quantify the beach susceptibility to storm-induced erosion Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-17 Salika Thilakarathne, Takayuki Suzuki, Martin Mäll
This study focuses on quantifying the susceptibility of sandy beaches to storm-induced erosion by analyzing 14 key morphometric indicators. We used a 24-year morphological and metocean dataset, en...
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Spatio-temporal variations of future wave climate-driven longshore sediment transport in the Gulf of Guinea Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-11 Adeola M. Dahunsi, Olusegun A. Dada, Frederic Bonou, Ezinvi Baloïtcha
The densely populated coast of the Gulf of Guinea (GoG) is experiencing escalating erosion from climate change (CC). To assess Longshore Sediment Transport (LST) changes in the past and future, an ...
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Observation of wave propagation over 1,000 km into Antarctica winter pack ice Coast. Eng. J. (IF 2.4) Pub Date : 2023-12-01 Takehiko Nose, Tomotaka Katsuno, Takuji Waseda, Shuki Ushio, Jean Rabault, Tsubasa Kodaira, Joey Voermans
A drifting wave-ice buoy (Medusa-766) was deployed at the Lützow-Holm Bay (LHB) marginal ice zone in Antarctica during the 63rd Japanese Antarctic Research Expedition to study the wave influence on...
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Development and testing of microSWIFT expendable wave buoys Coast. Eng. J. (IF 2.4) Pub Date : 2023-11-22 Jim Thomson, Phil Bush, Viviana Castillo Contreras, Nate Clemett, Jacob Davis, Alex de Klerk, Emily Iseley, Edwin James Rainville, Brenton Salmi, Joe Talbert
Expendable microSWIFT buoys have been developed and tested for measuring ocean surface waves. Wave spectra are calculated via onboard processing of GPS velocities sampled at 5 Hz, and wave spectra ...
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NDBC Wave observation system update Coast. Eng. J. (IF 2.4) Pub Date : 2023-11-12 Rodney Riley
The National Oceanic and Atmospheric Administration’s (NOAA) National Data Buoy Center (NDBC) operates a network of over 100 marine weather observation buoys. These buoys presently use a wave obser...
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Applicability of ocean wave measurements based on high-frequency radar systems in an estuary region Coast. Eng. J. (IF 2.4) Pub Date : 2023-11-01 Tomoya Kataoka, Takashi Fujiki
The applicability of high-frequency (HF) radar systems for wave measurement in an estuary was explored by extracting the significant wave height (Hsr) using a traditional Barrick equation from the ...
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An affordable and customizable wave buoy for the study of wave-ice interactions: design concept and results from field deployments Coast. Eng. J. (IF 2.4) Pub Date : 2023-10-29 Tsubasa Kodaira, Tomotaka Katsuno, Takehiko Nose, Motoyo Itoh, Jean Rabault, Mario Hoppmann, Masafumi Kimizuka, Takuji Waseda
The interaction between waves and ice has a crucial impact on the seasonal change in the sea ice extent. However, our comprehension of this phenomenon is restricted by a lack of observations. In re...
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Estimation of air-bubble-induced wave height and set-up using representative wave approach Coast. Eng. J. (IF 2.4) Pub Date : 2023-08-28 Md Nur Hossain, Susumu Araki
This study aimed to investigate the possibility of modeling the wave height and set-up by using the representative wave method caused by air bubbles in irregular waves in the surf zone. Two regular...
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A numerical model for predicting waves run-up on coastal areas Coast. Eng. J. (IF 2.4) Pub Date : 2023-08-22 Hasan Karjoun, Abdelaziz Beljadid
In this study, numerical investigations are performed to validate a numerical model for the prediction of waves propagation and waves run-up on coastal zones. The proposed numerical model is based ...
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Sea level variability and coastal inundation over the northeastern Mediterranean Sea Coast. Eng. J. (IF 2.4) Pub Date : 2023-08-21 Yannis Androulidakis, Christos Makris, Zisis Mallios, Yannis Krestenitis
Sea level is a key element of global-scale climatic changes with significant coastal impacts. The northeastern Mediterranean Sea (Aegean, Ionian, and Cretan Seas: AICS) consists of extended low-lyi...
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Fetch effects on air-sea momentum transfer at very high wind speeds Coast. Eng. J. (IF 2.4) Pub Date : 2023-08-10 Naohisa Takagaki, Naoya Suzuki, Koji Iwano, Kazuki Nishiumi, Ryota Hayashi, Naoki Kurihara, Kosuke Nishitani, Takumi Hamaguchi
ABSTRACT Accurate estimates of momentum flux through the air-sea interface at very high wind speeds are important for predicting tropical cyclone intensities. To estimate the air-sea momentum flux under the long-fetch condition (20 m fetch) at very high wind speeds using a laboratory tank, a simple momentum flux measurement method using only four water-level gauges is conducted based on the momentum
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The wavedrifter: a low-cost IMU-based Lagrangian drifter to observe steepening and overturning of surface gravity waves and the transition to turbulence Coast. Eng. J. (IF 2.4) Pub Date : 2023-07-26 F. Feddersen, Andre Amador, Kanoa Pick, A. Vizuet, Kaden Quinn, Eric Wolfinger, J. H. MacMahan, Adam Fincham
ABSTRACT Waves and wave breaking are important to many deep and shallow water processes. We describe the wavedrifter, an in situ water-following inertial measurement unit (IMU)-based drifter that measures wave steepening and overturning kinematics, and the subsequent transition to turbulence. The wavedrifter has 5 cm diameter, 77 g mass, and 0.84 saltwater specific gravity. GPS provides time synchronization
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Coastal forecast through coupling of Artificial Intelligence and hydro-morphodynamical modelling Coast. Eng. J. (IF 2.4) Pub Date : 2023-07-11 Pavitra Kumar, Nicoletta Leonardi
ABSTRACT As climate-driven risks for the world’s coastlines increase, understanding and predicting morphological changes as well as developing efficient systems for coastal forecast has become of the foremost importance for adaptation to climate change. Artificial Intelligence is a powerful technology that has been rapidly evolving recently and can offer new means of analysis for the coastal science
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Prediction of wave overtopping discharges at coastal structures using interpretable machine learning Coast. Eng. J. (IF 2.4) Pub Date : 2023-07-11 Taeyoon Kim, Woo-Dong Lee
ABSTRACT Appropriate estimation and prediction of wave overtopping discharges are very important in terms of economics, port structure stability, and port operation. In recent years, machine learning (ML) techniques, which predict by finding statistical structures from input/output data using computers, have generated interest. However, as the complexity of ML models increases, interpreting their results
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A proposal of a semi-empirical method for modifying the atmospheric pressure and wind fields of tropical cyclones Coast. Eng. J. (IF 2.4) Pub Date : 2023-06-29 Takumu Iwamoto, Tomohiro Takagawa, Tomoya Shibayama, Miguel Esteban, Martin Mäll
ABSTRACT The actions of wind and atmospheric pressure associated with tropical cyclones (e.g. typhoons) are considered the primary factors behind the generation of storm surges, though the fields used in meteorological models can sometimes deviate from observations. To improve these, the direct modification method (DMM) has been previously proposed, though this only modifies the wind field of a typhoon
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New Fetch- and Depth-Limited Forecasting Curves Depending on Bed Roughness Coast. Eng. J. (IF 2.4) Pub Date : 2023-05-27 Sara Pascolo, Marco Petti, Silvia Bosa
ABSTRACT Predicting wind waves within confined and shallow basins is very important, given the decisive role they play in the resuspension mechanisms of sediments and nutrients from the bottom, on which the main morphological and environmental changes depend. Pascolo, Petti, and Bosa (2019) proposed a set of wave forecasting curves for fully developed conditions in finite depth, which consider the
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Application of a generalized Green’s function approach to optimize modeled tidal and tidal residual currents for assessment of the dispersion area of thermal effluent discharges Coast. Eng. J. (IF 2.4) Pub Date : 2023-05-22 Takaki Tsubono, Teruhisa Okada, Yasuo Niida, Yuya Kino, Norikazu Nakashiki
ABSTRACT This paper proposes a generalized Green’s Function Approach (GFA) to calibrate the boundary conditions and parameters of a coastal current model. The GFA uses a pseudoinverse for the calculation of control variables, including the boundary conditions and parameters, and a Green’s function matrix, which is the response matrix of sensitivity experiments to the control variables. The GFA was
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Influence of the permeability of submerged breakwaters on surrounding wave and current fields Coast. Eng. J. (IF 2.4) Pub Date : 2023-05-14 Dilan Rathnayaka, Yoshimitsu Tajima
ABSTRACT While a submerged breakwater has become one of the preferred options of shore protection structures because of its lower impact on the coastal landscape and environment, it causes complicated hydrodynamic characteristics and sometimes fails to meet the expected coastal protection functions. Accurate prediction of wave and current around the structure is therefore essential for appropriate
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Grain-scale investigation of swash zone sediment transport on a gravel beach using DEM-MPS coupled scheme Coast. Eng. J. (IF 2.4) Pub Date : 2023-04-20 Takumi Tazaki, Eiji Harada, Hitoshi Gotoh
ABSTRACT Sediment transport in the swash zone directly affects beach changes such as shoreline recession; thus, detailed understandings of sediment transport mechanisms are necessary to accurately estimate the short-time scales sediment transport rate. However, these detailed mechanisms under runup waves have not been elucidated because of the complex solid-gas-liquid multiphase turbulence flow. In
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Deformation of Spartina patens and Spartina alterniflora stems under irregular wave action Coast. Eng. J. (IF 2.4) Pub Date : 2023-03-29 Acacia Markov, Jacob Stolle, Ross Henteleff, Ioan Nistor, Damien Pham Van Bang, Enda Murphy, Andrew Cornett
ABSTRACT Physical modeling studies have endeavored to quantify the influence of plant biophysical parameters and hydrodynamics on wave-vegetation interactions and coastal protection. The accuracy with which such studies have characterized stem motion is limited by the predominant use of plant surrogates, and the few saltmarsh species considered in live vegetation studies. To address this, prototype-scale
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An artificial neural network based system for wave height prediction Coast. Eng. J. (IF 2.4) Pub Date : 2023-03-21 Elad Dakar, José Manuel Fernández Jaramillo, Isaac Gertman, Roberto Mayerle, Ron Goldman
ABSTRACT We present a system for predicting the hourly significant wave height at a specific wave measurement station in the middle of Israel’s Mediterranean coast (Hadera). Our system uses an artificial neural network (ANN) composed of two sub-networks. We evaluate the importance of different inputs to the system. The input includes wind forecast data from the SKIRON atmospheric modeling system, wave
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Coastal disasters in Asia: Forecasting, Uncovering, Recovering, and Mitigation Coast. Eng. J. (IF 2.4) Pub Date : 2023-03-13 Hiroshi Takagi, Mohammad Heidarzadeh
Published in Coastal Engineering Journal (Vol. 65, No. 1, 2023)
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Short-crested wave-current forces around a concentric multiple-cylinder structure Coast. Eng. J. (IF 2.4) Pub Date : 2023-03-10 Zhenfeng Zhai, Jie Li, Dan Liu, Jianming Miao
ABSTRACT The potential flow theory is used to develop a new analytical method to solve the diffraction problem of short-crested incident waves with uniform current acting on a concentric multiple-cylinder system. The influence of uniform current on the hydrodynamic performance of the concentric structure is discussed. The incident angle and speed of the currents have a significant influence on the
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Development of a fully coupled wind stress-wave-ocean coastal model system Coast. Eng. J. (IF 2.4) Pub Date : 2023-02-25 Peng Zheng, Ming Li, Jianting Du, Caixia Wang, Judith Wolf, Xueen Chen
ABSTRACT To conserve momentum flux across the air-sea interface, a new wind stress-wave-ocean coupled coastal model system is developed. Via simulating a specific idealized tropical cyclone (TC), this model is firstly applied to study the impacts of three wave effects, including the commonly studied wave-breaking induced acceleration, wave-enhanced bottom friction and the seldom studied wave modified
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A study on the performance of circular and rectangular submerged breakwaters using nun-uniform FGVT method Coast. Eng. J. (IF 2.4) Pub Date : 2023-02-22 Elham Jafarzadeh, Asghar Bohluly, Abdorreza Kabiri-Samani, Shahriar Mansourzadeh
ABSTRACT Submerged circular breakwaters are laid to a point at the bottom, simplifying their installation compared to the rigid rectangular ones. In the present study, numerical simulations were performed to evaluate the circular and rectangular submerged breakwaters transmission coefficient, changing different hydraulic/geometric effective parameters. A sensitivity analysis was performed to evaluate
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Mitigating tsunami effects on buildings via novel use of discrete onshore protection systems Coast. Eng. J. (IF 2.4) Pub Date : 2023-02-10 Gede Pringgana, Lee S. Cunningham, Benedict D. Rogers
ABSTRACT This study investigates the effectiveness of a new discrete V-shaped coastal barrier (V-wall) to reduce multiple tsunami-bore impacts on a group of idealized coastal structures. The performance comparison has been made between a baseline model (BM), continuous straight wall models (SW), and V-wall (VW) models. A number of key parameters including the barrier height and length along with the
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Using the SPRC methodology to assess tsunami risk in Zihuatanejo, Mexico Coast. Eng. J. (IF 2.4) Pub Date : 2023-02-08 Yesenia Morgado, Omar S. Areu-Rangel, Rodolfo Silva, Takuya Miyashita, Nobuhito Mori, Tori Tomiczek
ABSTRACT The increase in the magnitude of natural disasters has led to the development of risk assessment methodologies to indicate risk levels in qualitative terms. Among these, the Source-Pathway-Receptor-Consequence (SPRC) methodology assesses the risk from the source of the hazard to the possible consequences. In the present work, an economic evaluation was carried out on the substantial damages
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Backfilling configuration to improve tenacity of composite-type breakwaters Coast. Eng. J. (IF 2.4) Pub Date : 2023-01-31 Ooki Kurihara, Hidenori Takahashi
ABSTRACT Composite-type breakwaters are reinforced by piling rubble stones and constructing counterweight fillings (known as reinforcing embankments) behind caissons. Important performance requirements for breakwaters include minimal damage and high strength, even when the external forces exceed the design forces. In this study, the failure process and final state of breakwaters with reinforcing embankments
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Questioning the hazard map-based rebuilding process: learning from the 2018 Sulawesi earthquake in Indonesia Coast. Eng. J. (IF 2.4) Pub Date : 2023-01-24 Kanako Iuchi, Hiroshi Takagi, Yasuhito Jibiki, Tamiyo Kondo, Ayako Kusunoki, Nuraini Rahma Hanifa, Dicky Pelupessy, Rahmadiyah Tria Gayathri, Robert Olshansky
ABSTRACT To reduce hazards in post-disaster rebuilding, governments often first revise existing hazard maps to update land use plans and regulations. This sequence assumes that the disaster event immediately improves knowledge of the hazard. To learn from an actual case, we document PASIGALA’s rebuilding process following the 2018 Central Sulawesi earthquake. We reviewed public documents in-depth,
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Numerical investigation of solitary wave attenuation and mitigation caused by vegetation using OpenFOAM Coast. Eng. J. (IF 2.4) Pub Date : 2023-01-08 Chenhao Zhang, Mingliang Zhang
ABSTRACT Wave energy can be reduced by coastal vegetation, which is an important aspect of coastal protection engineering. The effect of vegetation characteristics on solitary wave propagation and attenuation is numerically investigated in this study. A 3D numerical model is established based on the Reynolds Averaged Navier Stokes (RANS) equations combined with k-ω shear stress transport (SST) turbulence
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An experimental study on oscillatory characteristics of young mangroves behind a portable reef Coast. Eng. J. (IF 2.4) Pub Date : 2022-12-28 Sindhu Sreeranga, Hiroshi Takagi, Shin-Ichi Kubota, Jun Mitsui
ABSTRACT Approximately half of the world’s mangroves are concentrated in Asia, but they have been logged at an alarming rate. To compensate for this, mangrove plantations are being attempted at various sites but with many failures. In this study, we investigated the role of a small portable reef in protecting young mangrove plants from hydrodynamic disturbances caused by short-period waves. To investigate
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Numerical extensions to incorporate subgrid corrections in an established storm surge model Coast. Eng. J. (IF 2.4) Pub Date : 2022-12-28 Amirhosein Begmohammadi, Damrongsak Wirasaet, Autumn Poisson, Johnathan L. Woodruff, J. Casey Dietrich, Diogo Bolster, Andrew B. Kennedy
ABSTRACT Inundation models represent coastal regions with a grid of computational points, often with varying resolution of flow pathways and barriers. Models based on coarse grid solutions of shallow water equations have been improved recently via the use of subgrid corrections, which account for information (ground surface elevations, roughness characteristics) at smaller scales. In this work, numerical
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Future changes in extreme storm surge based on a maximum potential storm surge model for East Asia Coast. Eng. J. (IF 2.4) Pub Date : 2022-11-21 Sotaro Mori, Tomoya Shimura, Takuya Miyashita, Adrean Webb, Nobuhito Mori
ABSTRACT We analyzed tropical cyclones (TC) based on the theory of Maximum Potential Intensity (MPI) and Maximum Potential Surge (MPS) for a long-term assessment of extreme TC intensity and storm surge heights. We investigated future changes in the MPI fields and MPS for different global warming levels based on 150-year continuous scenario projections (HighResMIP) and large ensemble climate projections
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Hydrodynamic characteristics of emerged modular porous reef breakwaters Coast. Eng. J. (IF 2.4) Pub Date : 2022-11-15 V K Srineash, K Murali
ABSTRACT The wave interaction with porous reef breakwaters is investigated in this study through extensive laboratory experiments. The research is focussed on bringing out the hydrodynamic characteristics, such as wave transmission and wave reflection coefficient of reef breakwaters in emerged conditions. Design equations for estimating the transmission and reflection coefficients for emerged porous
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Statistical modeling of undertow on a natural beach Coast. Eng. J. (IF 2.4) Pub Date : 2022-11-14 Borribunnangkun Kullachart, Takayuki Suzuki
ABSTRACT To better understand the physical mechanism of undertow, field observations were conducted during barred and planar beach states on the Hasaki coast in Japan. The two observation periods spanned 21 days from May 13 to June 2 in 2016, and 13 days from May 9 to May 22 in 2017, respectively. A horizontal acoustic Doppler current profiler was used to measure the undertow velocity and water level
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Laboratory modelling of vertical sediment mixing in the surf zone Coast. Eng. J. (IF 2.4) Pub Date : 2022-11-14 Takayuki Suzuki, Kiichi Tajima, Ravindra Jayaratne
ABSTRACT A comprehensive set of laboratory experiments were conducted to investigate the spatial distributions of mixing depth in the surf zone. A wooden sandbox of 0.15-m-deep and 1.0-m-long is fabricated and placed in the middle of the bed slope. In the experiments, five different sediment diameters were used and the same diameters of fluorescent sand tracers were sprinkled on the sand bed surface
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Stochastic source modeling and tsunami simulations of cascadia subduction earthquakes for Canadian Pacific coast Coast. Eng. J. (IF 2.4) Pub Date : 2022-10-28 Katsuichiro Goda
ABSTRACT This study presents new stochastic source models for the Cascadia subduction earthquakes in the Pacific Northwest, which can trigger massive tsunamis along the shoreline of Vancouver Island. An extensive set of 5,000 stochastic source models is generated for the moment magnitude ranges between 8.1 and 9.1, and regional tsunami hazard simulations are performed at the grid resolution of 270
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Sensitivity analysis of the physics options in the Weather Research and Forecasting model for typhoon forecasting in Japan and its impacts on storm surge simulations Coast. Eng. J. (IF 2.4) Pub Date : 2022-10-18 Tomoki Shirai, Yota Enomoto, Masashi Watanabe, Taro Arikawa
ABSTRACT Weather Research and Forecasting (WRF) model is useful for forecasting typhoons as an external force of storm surge forecasts. This study examines the variation in typhoon forecasts caused by different choices of arbitrary physics options in WRF and their influence on storm surge forecasts. Eight frequently used combinations of cloud microphysics and planetary boundary layers were extracted
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Quantile regression analysis of time-space variation characteristics of tropical cyclones in the west North Pacific basin under global warming Coast. Eng. J. (IF 2.4) Pub Date : 2022-10-05 X. J. Wang, J. W. Yang, B. Huang, J. F. Cao
ABSTRACT The enormous economic losses and casualties were caused by tropical cyclones in the southeast coastal areas of China every year. In order to understand the time-space variation characteristics of tropical cyclones (including intensity, minimum central atmosphere pressure, duration, and generation position) in the global and the western North Pacific basin, the monthly and interannual variation
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A new criterion for critical suspension of nonuniform sediment Coast. Eng. J. (IF 2.4) Pub Date : 2022-09-20 Zhilin Sun, Lixia Sun, Yun Gao, Haolei Zheng, Wengang Xiang, Yimeng Gao
ABSTRACT As the lower boundary of suspended particles, the critical condition of suspension is an important component in the theory of nonuniform sediment transport and plays a significant role in the numerical computations in the suspended sediment movement. Previous studies on critical suspension are mostly based on Rouse number and Shields number. From the perspective of maximum particle size, this