Article
Chemistry, Multidisciplinary
Laura Sischka, Cyprien Bosserelle, Shaun Williams, Josephina Chan Ting, Ryan Paulik, Malcolm Whitworth, Lameko Talia, Paul Viskovic
Summary: This study reconstructs the 1917 Samoa tsunami and assesses the risk of future tsunamis. The findings suggest that the majority of affected population would reside in Savai'i if a similar event occurs again.
APPLIED SCIENCES-BASEL
(2022)
Article
Geosciences, Multidisciplinary
Sabarethinam Kameshwar, Hyoungsu Park, Daniel T. Cox, Andre R. Barbosa
Summary: This study establishes a general methodology for evaluating connectivity between critical facilities and key locations within a community, taking into account factors such as debris, flooding, and infrastructure damage. It reveals that the level of disconnection caused by debris and flooding is not always directly proportional to the return period of seismic-tsunami events.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2021)
Article
Geosciences, Multidisciplinary
Maria Karpouza, George D. Bathrellos, George Kaviris, Assimina Antonarakou, Hariklia D. Skilodimou
Summary: This study focuses on the hazard assessment of the Xerias River drainage basin in Greece, particularly in terms of flooding and tsunami inundation. It identifies safe locations and routes for schools and highlights the importance of scientific analysis in disaster management and planning.
INTERNATIONAL JOURNAL OF DISASTER RISK REDUCTION
(2023)
Article
Ecology
Michael W. Beck, Nadine Heck, Siddharth Narayan, Pelayo Menendez, Borja G. Reguero, Stephan Bitterwolf, Saul Torres-Ortega, Glenn-Marie Lange, Kerstin Pfliegner, Valerie Pietsch McNulty, Inigo J. Losada
Summary: There is a growing demand for coastal and marine restoration in the Caribbean to reduce flood risks. By using risk-industry methods, researchers find that restoring coral reefs and mangroves can generate a strong return on investment, even with high restoration costs. These findings provide valuable insights for identifying funding sources for these restoration projects.
ECOSYSTEM SERVICES
(2022)
Article
Geosciences, Multidisciplinary
Morteza Miri, Tayeb Raziei, Mehran Zand, Mohammad Reza Kousari
Summary: This study investigates the synoptic aspects of heavy rainfall events in the southern half of Iran in 2019-2020. The study analyzes precipitation data, atmospheric variables, and synoptic patterns to understand the formation of these events. It finds that the heavy rainfall is related to blocking synoptic systems and associated atmospheric turbulence. In March 2019, a strong cut-off low centered over Iraq intensified the rainfall, while in January 2020, a deep trough formed due to the formation of an omega-shaped blocking system.
Article
Engineering, Civil
Marta Del Zoppo, Marco Di Ludovico, Andrea Prota
Summary: The study presents a simple mechanics-based method for the risk assessment of Reinforced Concrete (RC) frame buildings subjected to tsunami or other flow-type hazards. The method, called SAFETI (Structural Assessment to Flows and Extreme Tsunami Inundation), is validated through performance assessment and large-scale risk analysis. It provides a robust solution for consistent fragility assessment at regional scale, accounting for building-to-building variability.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
Yesenia Morgado, Omar S. Areu-Rangel, Rodolfo Silva, Takuya Miyashita, Nobuhito Mori, Tori Tomiczek
Summary: The increase in natural disasters has led to the development of risk assessment methodologies, such as the SPRC methodology, which assesses risk levels from hazard sources to consequences. This study conducted an economic evaluation on the damages caused by a tsunami off the coast of Zihuatanejo, Mexico. The evaluation applied the SPRC method to street level in Zihuatanejo and provided economic costs for different levels of flooding. The study aims to improve urban development planning and allocate funds for mitigating natural disasters based on objective risk assessment.
COASTAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Civil
Luis Mediero, Enrique Soriano, Peio Oria, Stefano Bagli, Attilio Castellarin, Luis Garrote, Paolo Mazzoli, Jaroslav Mysiak, Stefania Pasetti, Simone Persiano, David Santill, Kai Schroeter
Summary: Climate change and urban expansion contribute to the increasing pluvial flood hazard and risk. This study proposes a stochastic methodology to develop large-scale pluvial flood hazard maps in urban areas with multiple depressions, providing a useful tool for identifying hotspots and reducing flood risk.
JOURNAL OF HYDROLOGY
(2022)
Article
Geosciences, Multidisciplinary
M. Geertsema, B. Menounos, G. Bullard, J. L. Carrivick, J. J. Clague, C. Dai, D. Donati, G. Ekstrom, J. M. Jackson, P. Lynett, M. Pichierri, A. Pon, D. H. Shugar, D. Stead, J. Del Bel Belluz, P. Friele, I Giesbrecht, D. Heathfield, T. Millard, S. Nasonova, A. J. Schaeffer, B. C. Ward, D. Blaney, E. Blaney, C. Brillon, C. Bunn, W. Floyd, B. Higman, K. E. Hughes, W. McInnes, K. Mukherjee, M. A. Sharp
Summary: This article describes and models the recent landslide, tsunami, outburst flood, and sediment plume in the southern Coast Mountains of British Columbia, Canada. The use of physically based models allows for real-time simulations, improving understanding of similar hazard cascades and the associated risks.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Cheng-Chun Lee, Charles Chou, Ali Mostafavi
Summary: The objectives of this study are to specify two critical milestones of short-term recovery during and after disasters - evacuation return and home-switch stability, and to understand the disparities among subpopulations in the duration of these recovery milestones. The study examines evacuation and home move-out rates in Harris County, Texas during Hurricane Harvey in 2017 using privacy-preserving fine-resolution location-based data. The findings reveal the areas with different durations for the two recovery milestones and disparities in evacuation return and home-switch stability patterns among different subpopulations.
SCIENTIFIC REPORTS
(2022)
Article
Geosciences, Multidisciplinary
Mohamad Haytham Klaho, Hamid R. Safavi, Mohammad H. Golmohammadi, Maamoun Alkntar
Summary: This paper conducts bivariate and trivariate flood frequency analysis using Archimedean copula functions and focuses on exploring the historical flood data. The best copula functions are determined through comparing the fitting criteria and extreme value theory analysis. The cumulative probability distribution functions are built to determine the flood return periods for different time periods.
Article
Biodiversity Conservation
Ju Shen, Shiqiang Du, Qun Ma, Qingxu Huang, Jiahong Wen, Zhan'e Yin, Jun Gao
Summary: This study proposes a new framework that integrates multiple flood return periods to assess the expected annual EFRS supply and demand in the Yangtze River Basin, China. The results show that EFRS demand increases dramatically with the return period, while EFRS supply remains relatively constant. Considering upstream EFRS supply can reduce the number of unsatisfied sub-basins, highlighting the importance of catchment-wide EFRS management.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Mohamed Elhag, Nese Yilmaz
Summary: Efficient rainfall/runoff data modeling relies on field data availability, with remote areas often leading to less reliable models. The study developed a hydrological model based on various return periods, showing that different intensities of precipitation can lead to significant discharge and potential flooding in the catchment area.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Biodiversity Conservation
Lihong Wang, Shenghui Cui, Jianxiong Tang, Lei Fang, Xuejuan Fang, Sabita Shrestha, Bikram Manandhar, Jinliang Huang, Vilas Nitivattananon
Summary: Climate change and rapid urbanization have increased the occurrence and impact of floods. This article presents a combined riverine flood risk model that can assess the flood risk and evaluate the flood damage. The results show that the total inundation areas increase significantly at longer flood return periods and the flood risk is higher in the lower reaches of the Jiulong River Basin. The model provides useful information for future flood risk management.
ECOLOGICAL INDICATORS
(2023)
Article
Multidisciplinary Sciences
Alan Condron, Jenna C. Hill
Summary: High-resolution seafloor mapping reveals evidence of massive icebergs drifting south along the eastern United States, with sediment core analysis and numerical modeling providing insights into iceberg transport mechanisms and past climate changes.
NATURE COMMUNICATIONS
(2021)
Article
Limnology
Zezheng Liu, Olivier Gourgue, Sergio Fagherazzi
Summary: This study compared the geometric properties of tidal channel networks in salt marshes along the coasts of the United States and China, finding significant differences based on vegetation dominance. Physical parameters were better at explaining these differences, with mean marsh elevation and tidal range as key variables. Biotic parameters had a weaker effect on the network geometry, indicating the importance of physical processes in shaping tidal channel networks.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Jie Wang, Zhijun Dai, Sergio Fagherazzi, Xiaohe Zhang, Xiaoqiang Liu
Summary: Understanding the impact of extreme floods on deltaic systems is crucial for determining their long-term fate. This study used a model and field data to investigate the hydraulics and morphodynamics of extreme riverine floods in the Yangtze Delta in 2016. The results show that these floods can increase water levels, velocities, and bed shear stresses, leading to increased sediment transport and riverbed erosion downstream.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Geology
Jie Wang, Zhijun Dai, Sergio Fagherazzi, Chuqi Long
Summary: This study developed a novel terrestrial laser scanner (TLS) based method to characterize the substrate of intertidal flats. By collecting surface sediment samples and corresponding waveform amplitudes of TLS echoes, a negative logarithmic relationship was found between waveform amplitudes and sediment sand fraction, average grain size, and D-50. The TLS-based method proved to be rapid and effective in discriminating sediment characteristics, with potential wide applications in shoreline studies.
Article
Geosciences, Multidisciplinary
Yiyang Xu, Tarandeep S. Kalra, Neil K. Ganju, Sergio Fagherazzi
Summary: This study used a 3D fully coupled modeling system to simulate the final vegetation cover and timescale of salt marshes under different forcing conditions. The simulations showed that sediment concentration, settling velocity, sea level rise, and tidal range each had different impacts on the equilibrium coverage and timescale of marshes.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Engineering, Civil
Giovanna Nordio, Sergio Fagherazzi
Summary: The migration of salt marshes into forests along coastal regions is a well-documented phenomenon, caused by sea level rise and storms. This study examines groundwater levels and salinity in two wells located at the border between forest and salt marsh in the lower Delmarva peninsula, USA. The findings show that groundwater levels and salinity are influenced by hydraulic gradient and temperature, with salinity increasing when groundwater levels are high.
JOURNAL OF HYDROLOGY
(2022)
Article
Geosciences, Multidisciplinary
Xiaohe Zhang, Kyle Wright, Paola Passalacqua, Marc Simard, Sergio Fagherazzi
Summary: This study utilizes remote sensing imagery-derived channel networks as a baseline to build a high-resolution hydrodynamic model, aiming to improve the model performance in coastal wetlands. The results show that a minimum channel depth of 2 meters and a width of four grid elements are required for realistic tidal propagation in wetland channels.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2022)
Article
Environmental Sciences
D. J. Jensen, K. C. Cavanaugh, D. R. Thompson, S. Fagherazzi, L. Cortese, M. Simard
Summary: A wetland's ability to vertically accrete is crucial for countering soil subsidence and sea level rise. The changing sea level, land elevation, primary productivity, and sediment accretion in coastal Louisiana are destabilizing wetland ecosystems. This study utilizes remote sensing data to estimate local accretion rates and develops a model that predicts wetland vulnerability and loss.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
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
Geosciences, Multidisciplinary
Giovanna Nordio, Ryan Frederiks, Mary Hingst, Joel Carr, Matt Kirwan, Keryn Gedan, Holly Michael, Sergio Fagherazzi
Summary: Recent studies have mostly focused on the impact of large tropical cyclones on shorelines, disregarding the effects of less intense but more frequent events. This study analyzes the influence of offshore tropical storm Melissa on groundwater along the North America Atlantic coast. The findings show that Melissa led to a significant increase in groundwater level and specific conductivity, with a longer recovery time for conductivity. The study suggests that the increasing frequency of moderate storms will have a significant ecological impact on vegetated shorelines.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Carmine Donatelli, Paola Passalacqua, Kyle Wright, Gerard Salter, Michael P. Lamb, Daniel Jensen, Sergio Fagherazzi
Summary: Deltas are threatened by sea-level rise, sediment starvation, and subsidence. Remote sensing can be used to estimate flow velocities in deltas by leveraging the synoptic information offered by the technology. This approach provides a more comprehensive understanding of the spatiotemporal variability in flow velocity, which is crucial for forecasting the fate of these fragile ecosystems.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Ecology
Giovanna Nordio, Sergio Fagherazzi
Summary: Sediment transport on salt marsh platforms is mainly caused by storm events and high tides, while at high latitudes, ice-rafting acts as a secondary mechanism. A winter storm in 2018 resulted in a large sediment deposition in the Great Marsh in Plum Island Sound, Massachusetts, USA, mainly due to ice-rafting, which buried the marsh vegetation. The recovery of plant vegetation in sediment patches was observed, with different species showing varying responses. Overall, the deposition of sediment had a positive effect on marsh vegetation growth and restoration.
MARINE ECOLOGY PROGRESS SERIES
(2023)
Article
Geosciences, Multidisciplinary
I. R. B. Reeves, L. J. Moore, K. Valentine, S. Fagherazzi, M. L. Kirwan
Summary: Barrier coastlines and their associated ecosystems are undergoing rapid changes. A new coupled model framework is used to investigate how sediment exchange influences the migration of ecosystem boundaries and extent over time. Landward barrier migration is found to be the main cause of back-barrier marsh loss, while periods of stability contribute to marsh recovery. Surprisingly, undeveloped barriers are largely insensitive to sea-level rise due to increased landward migration offsetting marsh edge erosion.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
Carmine Donatelli, Paola Passalacqua, Daniel Jensen, Talib Oliver-Cabrera, Cathleen E. Jones, Sergio Fagherazzi
Summary: Water movement in coastal wetlands is influenced by topography, vegetation characteristics, and hydrological processes. This study utilizes remote sensing data to analyze water-level changes and vegetation contributions in marshes, revealing the importance of small geomorphic features and the minor role of vegetation in water retention.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Environmental Sciences
Danial Khojasteh, Milad Haghani, Robert J. Nicholls, Hamed Moftakhari, Mahmood Sadat-Noori, Katharine J. Mach, Sergio Fagherazzi, Athanasios T. Vafeidis, Edward Barbier, Abbas Shamsipour, William Glamore
Summary: A bibliographic meta-analysis of 15,000 research articles revealed that sea-level rise research expanded 36-fold between 1990 and 2021, with a decrease in pure science and an increase in topics related to impacts, risks, and adaptation.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Environmental Sciences
L. Cortese, D. J. Jensen, M. Simard, S. Fagherazzi
Summary: Vegetation plays a crucial role in controlling soil accretion in coastal wetlands, and the Normalized Difference Vegetation Index (NDVI) can be used to monitor wetland health and degradation. This study used NDVI time-series and in situ measurements to develop models for mapping organic mass accumulation rates and salinity in Terrebonne Bay, Louisiana, USA.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.
