Article
Environmental Sciences
Sofia Aldabet, Evan B. Goldstein, Eli D. Lazarus
Summary: This study examines the functioning thresholds of road networks on barrier islands along the Atlantic and Gulf coasts of the USA, providing important insights into the future dynamics of human-altered barriers. The research finds that no single metric sufficiently ranks the susceptibility of barrier road networks to failure.
Article
Environmental Sciences
Yingjie Li, Samuel V. J. Robinson, Lan H. Nguyen, Jianguo Liu
Summary: The increasing frequency and severity of coastal hypoxia pose a significant threat to marine ecosystems and human well-being. It is crucial to implement continuous and comprehensive monitoring using advanced tools to track spatial and temporal changes in coastal hypoxia. This study utilized satellite imagery and statistical modeling techniques to estimate the spatiotemporal dynamics of hypoxia in the Gulf of Mexico. The results revealed the influence of surface water processes on bottom water hypoxia, highlighting the need for considering time lags in hypoxia studies. Additionally, the study demonstrated the potential of satellite remote sensing for accurate and real-time hypoxia mapping.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Environmental Sciences
Dazhi Xi, Ning Lin, Avantika Gori
Summary: Research shows that the likelihood of coastal areas experiencing consecutive tropical cyclone hazards has been increasing over the past few decades. In the future, due to rising sea levels and climate change, the frequency of these sequential hazards is projected to significantly increase. Under high emission scenarios, the probability of two hurricanes like Katrina and Harvey impacting the United States within a 15-day period is estimated to exceed 1% by the end of the century.
NATURE CLIMATE CHANGE
(2023)
Article
Computer Science, Information Systems
Gainbi Park
Summary: This study investigated the historical extent of hurricane-related damage and identified the most at-risk areas of hurricanes. Additionally, the study analyzed the overall population trend within hurricane at-risk zones and found that coastal populations are growing at a faster pace, increasing the exposure of at-risk populations to hurricane-related damage on a national scale.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2021)
Article
Environmental Sciences
Tao Zhou, Bowen Cao, Junliang Qiu, Shirong Cai, Haidong Ou, Wei Fan, Xiankun Yang, Xuetong Xie, Yu Bo, Gaige Zhang
Summary: This study utilized satellite images and three representative SSC models to estimate and analyze the suspended sediment concentrations (SSC) in the major estuaries and non-estuarine regions along the Western Pacific Coasts (WPC). The findings revealed a consistent decreasing pattern in SSC changes over the past three decades, with differences in seasonal attributes and spatial distribution among the estuaries. The decline in estuarine SSC played a significant role in the overall decrease in SSC across the WPC.
Article
Environmental Sciences
Hilary F. Stockdon, Joseph W. Long, Margaret L. Palmsten, Andre van der Westhuysen, Kara S. Doran, Richard J. Snell
Summary: Predictions of total water levels, the elevation of combined tides, surge, and wave runup at the shoreline are necessary for guidance on coastal erosion and flooding. A new national-scale modeling system has been developed to provide timely coastal hazard warnings and enables continued research into wave-driven processes at various coastal areas.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Ecology
Theresa A. O'Meara, Peter E. Thornton, Daniel M. Ricciuto, Genevieve L. Noyce, Roy L. Rich, J. Patrick Megonigal
Summary: The Energy Exascale Earth System Model (E3SM) simulates interactions among complex cycles and processes in terrestrial ecosystems but lacks extensive understanding of coastal systems dynamics. The project aimed to modify the E3SM land model to study marsh community responses and investigate C3 plant reactions to temperature and CO2 changes. Further updates to physiological parameters and feedback mechanisms between vegetation and biogeochemical processes are planned for future research.
ECOLOGICAL MODELLING
(2021)
Article
Geosciences, Multidisciplinary
Anthony J. Vega, Paul W. Miller, Robert V. Rohli, Jason Heavilin
Summary: Nuisance flooding, also known as high-tide or sunny day flooding, is a prevalent phenomenon affecting coastal developments worldwide. This study identifies atmospheric patterns associated with NF events along the Atlantic and Gulf of Mexico coasts of the USA and reveals that NF frequency is increasing with time. Different regions have unique dominant NF synoptic patterns.
Article
Computer Science, Interdisciplinary Applications
Luis Pedro Almeida, Israel Efraim de Oliveira, Rodrigo Lyra, Rudimar Luis Scaranto Dazzi, Vinicius Gabriel Martins, Antonio Henrique da Fontoura Klein
Summary: CASSIE is an open-source web tool for automatic shoreline mapping and analysis using satellite imagery. It can be applied to any coastal region on Earth and uses Landsat and Sentinel-2 satellite imagery with NDWI and Otsu algorithm for shoreline detection. The tool provides sub-pixel accuracy and a user-friendly interface for a wide variety of studies and applications related to shoreline behavior.
ENVIRONMENTAL MODELLING & SOFTWARE
(2021)
Article
Environmental Sciences
Mahshid Ghanbari, Mazdak Arabi, Shih-Chieh Kao, Jayantha Obeysekera, William Sweet
Summary: The cooccurrence of coastal and riverine flooding leads to compound events with substantial impacts on low-lying coastal areas. A bivariate flood hazard assessment method is proposed to estimate compound coastal-riverine frequency under current and future climate conditions, with future scenarios showing the highest frequency amplification along the southeast Atlantic coast.
Article
Environmental Sciences
Yongjing Mao, Daniel L. Harris, Zunyi Xie, Stuart Phinn
Summary: Coastal geomorphic classification is crucial for identifying the depositional environment along coastlines. Previous methods relied heavily on manual efforts and expert opinions, which limited their application at a global scale. In this study, satellite images and digital elevation models were used to classify coastal geomorphology on a global scale. The incorporation of shape descriptors extracted from shoreline vector data improved the accuracy of the classification. The output dataset can be used for various coastal management purposes.
REMOTE SENSING OF ENVIRONMENT
(2022)
Article
Environmental Sciences
Marius Philipp, Andreas Dietz, Tobias Ullmann, Claudia Kuenzer
Summary: This study presents a monitoring framework for quantifying annual change of permafrost-affected coasts in the Arctic using Synthetic Aperture RADAR (SAR) data and Deep Learning (DL) techniques. The study reveals significant coastal erosion rates in the Arctic, with the United States (Alaska) having the highest average annual erosion rate followed by Russia. The findings provide valuable insights for future analysis of permafrost loss and carbon emissions in Arctic coastal environments.
Article
Oceanography
D. C. Napolitano, G. Alory, I Dadou, Y. Morel, J. Jouanno, G. Morvan
Summary: This study explores the meso-to-large-scale effects of the interaction between the Equatorial Undercurrent (EUC) and the Gulf of Guinea islands. The simulations show that the EUC bifurcates at 6 degrees E, triggering mesoscale activity and spreading EUC waters. Eddies formed near the islands propagate westward, carrying high salinity through the tropical Atlantic. The formation and distribution of these eddies are influenced by mixing, friction, and the location of Sao Tome.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Fisheries
David S. Portnoy, Andrew T. Fields, Jonathan B. Puritz, Christopher M. Hollenbeck, William F. Patterson
Summary: This study utilized landscape genetics to analyze the population structure of red snapper, revealing Atlantic and Gulf of Mexico stocks and weak heterogeneity within the Gulf. The results of redundancy analysis showed heterogeneity on various spatial scales, with adult movement playing a larger role in variation than spatial position or larval dispersal. The study suggests a metapopulation structure for red snapper in the Gulf of Mexico and a potential genetic discontinuity along the West Florida Shelf.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Environmental Sciences
Marius Philipp, Andreas Dietz, Tobias Ullmann, Claudia Kuenzer
Summary: Arctic permafrost coasts are becoming more vulnerable due to reduced sea-ice extent, thawing permafrost, and other environmental factors. This study presents a novel approach to quantify annual coastal erosion rates using Sentinel-1 radar data and deep learning techniques. The results show significant variations in erosion rates, ranging up to 160 meters in some areas with an average erosion rate of 4.37 meters. The proposed methods and data have the potential to be applied on a large scale and are important for studying Arctic coastal environments and permafrost loss.