Article
Engineering, Environmental
Xianwu Shi, Bingrui Chen, Yingyu Liang, Bei Zhang, Tao Ye
Summary: China is severely affected by storm surge disasters, and in this study, Zhoushan City in Zhejiang Province was selected as a representative case. A high-precision storm surge numerical model was established, and historical observation data were used to calculate extreme tidal levels probability distribution curves, providing a scientific basis for calculating storm surge inundation.
STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
(2021)
Article
Ecology
Stapana Kongsen, Sumet Phantuwongraj, Montri Choowong, Sakonvan Chawchai, Nikhom Chaiwongsaen, Supawich Fuengfu, Doan Thi Anh Vu, Dinh Quoc Tuan, Frank Preusser
Summary: The study analyzed the sedimentary characteristics of coastal storm and fluvial flood deposits in Vietnam and found that storm sediments were coarse with low organic and carbonate content, while flood sediments were fine with high organic and carbonate content. By plotting grain size against sorting, coastal storm layers can be distinguished from inland flood layers.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Bart J. J. M. van den Hurk, Christopher J. White, Alexandre M. Ramos, Philip J. Ward, Olivia Martius, Indiana Olbert, Kathryn Roscoe, Henrique M. D. Goulart, Jakob Zscheischler
Summary: Consideration of compound drivers, hazards, and impacts is often overlooked in the Disaster Risk Reduction (DRR) cycle, leading to limited understanding of risk and actions. This article provides examples of how compound thinking can affect different areas of disaster risk management and emphasizes the need for practical guidelines. The authors identify five DRR categories and present studies that highlight the role of considering compound factors in early warning, emergency response, infrastructure management, long-term planning, and capacity building.
Article
Engineering, Civil
Jianlong Feng, Delei Li, Yanxiao Li, Liang Zhao
Summary: To enhance flood protection and risk reduction in China's coastal cities, it is crucial to understand the variability and underlying causes of compound floods arising from storm surges and intense precipitation. The study found a strong and seasonally varying dependence between storm surges and extreme precipitation along the coast of China. Compound flood variability was related to large-scale climate modes such as the Arctic Oscillation and Pacific Decadal Oscillation. Precipitation extremes determine the changes in the occurrence of compound floods, and large climate modes are supposed to impact the occurrence of compound floods by modifying the East Asian summer monsoon and typhoons.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Soroush Kouhi, M. Reza Hashemi, Malcolm Spaulding, Tetsu Hara
Summary: Storm-surge models are used to assess the impacts of hurricanes and coastal storms in coastal areas, and including sea level rise is necessary for realistic flood risk assessment. Linear superposition of sea level rise may lead to inaccuracies, while developing a nonlinear model is time-consuming. By comparing the linear and nonlinear approaches, it is found that the linear approach is generally conservative in predicting flood elevations compared to the nonlinear approach.
Article
Engineering, Civil
Kousik Das, Soumyajit Sarkar, Abhijit Mukherjee, Prerona Das, Amey Pathak
Summary: The study found that ocean tides and storm waves have instantaneous, rapid, and synchronous effects on coastal groundwater levels, especially in the Ganges river mega-delta, one of the world's most extreme climate-affected regions. Machine learning techniques can accurately predict the rise of groundwater levels in deeper aquifers during ocean wave surge events, but are unable to quantify the changes in shallower groundwater levels during storm events.
JOURNAL OF HYDROLOGY
(2021)
Article
Oceanography
Giovanna Nordio, Sergio Fagherazzi
Summary: This study uses wavelet analysis to investigate the effect of lateral wetlands on water level signals in the Wax Lake system of the Mississippi River Delta. The results show that during high river discharge, the astronomical tide inside the wetlands is reduced by 90%-98% compared to Atchafalaya Bay, while the low frequency components of storm surges propagate with preserved energy within the delta.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Environmental Sciences
Zbigniew W. Kundzewicz, Iwona Pinskwar
Summary: This paper examines the physical mechanisms behind changes in pluvial and fluvial flood hazards, reviews literature on the detection and attribution of these changes, and discusses the increasing intensity of precipitation extremes and the complex changes in river floods. It also projects that heavy rainfall events and pluvial floods will become more frequent and intense due to climate change, while fluvial floods are expected to increase in many but not all regions.
Article
Geosciences, Multidisciplinary
Maqsood Mansur, Julia Hopkins, Qin Chen
Summary: This study investigates the sensitivity of Calcasieu Lake estuarine region in southwest Louisiana, USA, to channel deepening. The results show that deepening the channel increases the inland penetration of storm surge and vulnerable to flood. The study also analyzes the impact of channel deepening on storm surge in estuaries under future sea-level rise scenarios, suggesting an increase in flood risk.
Article
Engineering, Marine
Yuyu Ma, Yajie Wu, Zhuxiao Shao, Tonggang Cao, Bingchen Liang
Summary: This study developed an integrally-coupled tide-surge wave model to simulate storm tides and waves in the coastal area of Qingdao. The results showed that sea level rise and typhoon intensification had significant impacts on tides within Jiaozhou Bay, with a greater effect during the flood and ebb period. The study also revealed that the effects of sea level rise and typhoon intensification on storm tides and waves varied and were different in Jiaozhou Bay and along the open coast. Therefore, using a coupled model is crucial for estimating the potential maximum risk of storm surges and waves in the coastal area of Qingdao.
Article
Thermodynamics
Yuquan Zhang, Wenqian Wei, Jinhai Zheng, Bin Peng, Yaoru Qian, Chengyi Li, Yuan Zheng, Emmanuel Fernandez-Rodriguez, An Yu
Summary: This paper investigates the hydrodynamic performance of a floating horizontal axis tidal turbine under wave-current conditions and compares it with experimental results. The findings suggest that surge motion caused by waves significantly affects the thrust and torque of the rotor, while the wave height and period also have a remarkable impact on the fluctuation of the hydrodynamic performance.
Article
Engineering, Marine
Mahmoud Ayyad, Muhammad R. Hajj, Reza Marsooli
Summary: Risk-informed coastal management requires assessment of extreme flood hazards from a large number of storm scenarios. To account for impact of climate change, physics-based simulations can be combined with Artificial Neural Network models to support faster and more effective prediction of low-probability events.
Article
Multidisciplinary Sciences
Tina Dura, Andra J. Garner, Robert Weiss, Robert E. Kopp, Simon E. Engelhart, Robert C. Witter, Richard W. Briggs, Charles S. Mueller, Alan R. Nelson, Benjamin P. Horton
Summary: The study found that future relative sea-level rise will lead to more frequent distant-source tsunamis along the southern California coast, potentially exceeding historically observed levels. Under high-emission scenarios, lower magnitude earthquakes in the Alaska-Aleutian subduction zone may produce larger tsunamis in the future.
NATURE COMMUNICATIONS
(2021)
Article
Water Resources
Yejia Qiang, Jian He, Te Xiao, Wenjun Lu, Jinhui Li, Limin Zhang
Summary: This study aims to develop a flood analysis model to integrate multiple flooding triggers and investigate coastal flood hazards at the street scale in urban areas. The research shows the key role of drainage facilities in mitigating flooding induced by wave overtopping, and the effectiveness of a 1.1 m wave wall in reducing overtopping discharge, flooding severity, and dangerous zones for pedestrians.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2021)
Article
Engineering, Civil
Agnieszka I. Olbert, Sogol Moradian, Stephen Nash, Joanne Comer, Bartosz Kazmierczak, Roger A. Falconer, Michael Hartnett
Summary: This paper presents a robust cost-effective framework that links statistical and hydrodynamic models to assess coastal-fluvial flooding due to compound action of multivariate dependent drivers. The methodology involves individual and combined extreme value analysis, assessment of dependencies and interactions between flood drivers, and high-resolution hydrodynamic modeling of flood scenarios. The research demonstrates the importance of considering interactions and dependencies between tides, surges, and river flows in assessing flood severity.
JOURNAL OF HYDROLOGY
(2023)