Three-Dimensional Modeling of Tsunami Waves Triggered by Submarine Landslides Based on the Smoothed Particle Hydrodynamics Method

Abstract

Submarine landslides are a global geohazard that can displace huge volumes of loose submarine sediment, thereby triggering enormous tsunami waves and causing a serious threat to coastal cities. To investigate the generation of submarine landslide tsunamis, a three-dimensional numerical model based on the smoothed particle hydrodynamics (SPH) method is presented in this work. The model is first validated through the simulation of two underwater landslide model tests, and is then applied to simulate the movement of the Baiyun landslide in the South China Sea (SCS). The kinetics features of the submarine landslide, including the sliding velocity and runout distance, are obtained from the SPH simulation. The tsunami waves generated by the Baiyun landslide are predicted. In addition, sensitivity analyses are conducted to investigate the impact of landslide volume and water depth on the amplitude of the tsunami waves. The results indicate that the amplitude of tsunami waves triggered by submarine landslides increases with the landslide volume and decreases with the water depth of the landslide.

Dynamic typhoon visualization based on the integration of vector and scalar fields

“…Shuai (2020) constructed a particle management system, and from the optimization of the particle system data structure, designed a three-layer structure of view Schematic of ray casting. Feng et al 10.3389/fmars.2024.1367702 volume index, flow field data grid, and particles, to quickly retrieve and render the particles in the current view volume, which greatly reduces the volume of particle visualization calculations, and improves the efficiency of the particle system to simulate the flow field (Shi et al, 2021) proposed a new method to visualize multilevel flow field dynamics based on a particle system, researched parallel particle tracking and efficient rendering, and proposed a viewport adaptive tuning algorithm that can efficiently express vector field features in multiscale situations (Zhang et al, 2019) computed the differences between the data at adjacent time points in different frames to change the attributes and introduced a Compute Unified Device Architecture (CUDA) parallel computing model to visualize large-scale particle changes, which reduced the Central Processing Unit (CPU) load and significantly improved the frame rate (Dai et al, 2023) used the smooth particle hydrodynamics (SPH) method to simulate the free surface problem in ocean engineering and reproduced the whole process of submarine landslide propagation and tsunami occurrence. However, with the current particle system visualization technology, more research still stays on the single-moment twodimensional expression effect.…”

Earth fissure susceptibility mapping: Application of random subspace‐based novel ensemble approaches

“…In recent years, advancement in computer science (He et al, 2021; Huang et al, 2023; Mao et al, 2022; Yin, Wang, et al, 2023; Yin, Wu, et al, 2023), algorithms (Dai et al, 2023; Jia et al, 2023; Xu et al, 2022; Yang et al, 2022, 2023) and GIS and remote sensing (Guan et al, 2023; Tian et al, 2019, 2020; Zhou et al, 2023; Zhou, Li, et al, 2022; Zhou, Wang, et al, 2022; Zhu et al, 2022) models can provide accurate prediction of occurrences. There are different methods including machine learning techniques using remote sensing images that were proposed and computed in geographic information system (GIS) environment to predict different geohazards like landslides, floods, land subsidence, soil/gully erosion and many others (Bagheri‐Gavkosh et al, 2021; Conoscenti et al, 2018; Souissi et al, 2020; Tehrany et al, 2015; Tien Bui et al, 2018).…”

Fast hybrid methods for modeling landslide susceptibility in Ardal County

“…With the advent of advanced computational and simulation techniques, many fields of research have been revolutionized toward attaingng more comprehensive solutions 1 – 4 . Environmental risk assessment is one of these fields that has experienced considerable improvement in recent decades 5 . Landslide susceptibility assessment is one of these fields that plays an imperative role in harnessing this hazard in prone areas 6 , 7 .…”