Article
Environmental Sciences
Zhengcheng Wu, Chunyan Zhou, Peng Wang, Zihao Fei
Summary: The Bohai Sea in China has been affected by large-scale reclamation, causing a deteriorative hydrodynamic environment. This study conducted single-factor simulations to examine the impact of coastline changes on tidal dynamics and material transport in the Bohai Sea from 1999 to 2019. The results showed that the amplitude of M2 tide slightly increased in some bays but decreased significantly in others due to extensive reclamation. The study highlights the importance of understanding the evolution of the Bohai Sea for future marine ecological restoration efforts and for studying similar semi-enclosed bays.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Ecology
Samuel Daramola, Huan Li, Olorunfemi Omonigbehin, Ajibola Faruwa, Zheng Gong
Summary: This study aims to understand the recent changes and potential future threats along the Mahin mud coastline in Nigeria. Using satellite images and GIS technology, the study evaluates the retreat rates and delineates flooded coastal areas under different sea level rise scenarios. The results show that areas that were previously accreting have started to retreat, while other areas continue to experience intensified retreat. Coastal flooding may soon extend several kilometers inland, requiring appropriate coastal protection plans.
REGIONAL STUDIES IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Xiaohao Zhang, Jingrou Lin, Huamei Huang, Junjie Deng, Aiping Chen
Summary: This study analyzes the changes in the coastline and sea reclamation of the Pearl River Estuary over the past half a century using satellite images. The results show an increase in the total length of the coastline and the reclamation area. In recent years, the purpose of reclamation has shifted from agriculture and pond culture to transportation, industrial development, and urban construction.
Article
Oceanography
Yuxin Zhang, Dong Li, Chao Fan, He Xu, Xiyong Hou
Summary: This study investigated changes in island coastlines in South East Asia (SEA) between 1990 and 2015 using an integrated workflow, including coastline extraction, analysis of changes, and discussion of driving forces based on remote sensing technology and GIS spatial analysis. More than 9000 islands were extracted, with approximately 12% showing changes in coastlines, resulting in a decrease in area totaling 251 km(2) and an increase in coastline length by 821 km.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Engineering, Marine
Joseph Kim, Enda Murphy, Ioan Nistor, Sean Ferguson, Mitchel Provan
Summary: A numerical study investigated storm surge hazards in Canada's western Arctic using the ERA5 dataset. The study found that decreasing sea ice and the duration of the ice season in the Arctic may lead to increased risk from storm surge-driven hazards. The numerical model, adjusted with wind drag coefficients, accurately predicted storm surges for most simulated events, highlighting the importance of non-conventional data sources in coastal hazard assessments.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Environmental Sciences
Yuandong Zhu, Zhenjin Li, Zheng Zhao, Lijun Lu, Shucheng Yang, Zhiyong Wang
Summary: This study constructed a comprehensive method for extracting coastline information and analyzing its changes using long time series remote sensing data. The results showed that coastline type information provides important information for analyzing long term coastline changes, and coastline information can be effectively extracted using multi-spectral optical data and dual-polarization SAR data. The coastline of Jiaozhou Bay has shown an obvious trend towards the ocean in the past 35 years, with an average annual expansion rate of 16.723m. The proportion of artificial coastline has increased significantly, reaching 59.33% in 2022. The land reclamation area in the past 35 years has reached 41.45km(2), with Shibei District, Licang District, and Huangdao District being the most frequent areas.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Baodong Ma, Xiangru Yang, Yajiao Yu, Yang Shu, Defu Che
Summary: Mining activities can cause damage to the surrounding ecology and environment, with vegetation change analysis being a key tool to assess this damage. Most mining areas show degraded vegetation, but some areas have improved vegetation, highlighting the importance of ecological reclamation and environmental protection measures.
Article
Environmental Sciences
Fan Yang, Li Zhang, Bowei Chen, Kaixin Li, Jingjuan Liao, Riffat Mahmood, Mohammad Emran Hasan, M. M. Abdullah Al Mamun, Syed Ahmed Raza, Dewayany Sutrisno
Summary: In this study, the coastlines along 56 coastal countries were classified and analyzed using Landsat time-series images. The results showed that the overall length of the coastlines increased in the past 30 years, with a significant increase in artificial coastlines in Southeast Asia and South Asia. The fractal dimensions of the coastlines in South Asia and Southeast Asia were higher than in other regions, indicating a more complex and curved coastline. The impact of human activities on the coastline increased until 2015 and decreased after that.
Article
Environmental Sciences
Yaxin Ding, Xiaomei Yang, Hailiang Jin, Zhihua Wang, Yueming Liu, Bin Liu, Junyao Zhang, Xiaoliang Liu, Ku Gao, Dan Meng
Summary: The research on extracting coastline information using remote sensing big data platforms and dense time-series methods to achieve a unified tide level standard is of great significance for coastal dynamic change monitoring and island reef change monitoring. The results show that this method has achieved good results in large-scale monitoring of coastline changes and analyzing the reasons for the Malay Islands coastline changes.
Article
Environmental Sciences
Shuqing Wang, Zechao Bai, Yuepeng Lv, Wei Zhou
Summary: This study used a combination of UAV images and satellite interferometry images to monitor surface subsidence in alpine coal mining areas. The results showed that terrain reshaping had an impact on subsidence, but vegetation recovery had limited effect.
Article
Green & Sustainable Science & Technology
Mary O. Oloyede, Akan B. Williams, Godwin O. Ode, Nsikak U. Benson
Summary: Coastal regions are important due to their ecosystems, resources, and population. Sea-level rise caused by climate change has negative effects on these regions, such as erosion, flooding, and habitat destruction. This study assessed the vulnerability of the Nigerian coastline using an analytical hierarchical approach, identifying areas with high vulnerability. The results showed that 59-65% of the coastline is moderately to highly vulnerable to sea-level rise. Coastal vulnerability maps were created to aid coastal planners in decision-making.
Article
Environmental Sciences
Andrey Ethan Rubin, Limor Omeysi, Ines Zucker
Summary: This study analyzes the current state of microplastic contamination along the Mediterranean coastline of Israel. Tel Aviv and Hadera, located near stream estuaries, were found to be highly contaminated compared to other locations. The microplastics detected included both secondary microplastics and pristine polymeric pellets. The most common microplastic polymers were polyethylene and polypropylene. The study suggests that local rivers contribute significantly to microplastic contamination and may pose a direct threat to the environment and human health.
MARINE POLLUTION BULLETIN
(2022)
Article
Oceanography
Xu Yandong, Gao Huiwang, Wei Xiao, Zhu Jinlong
Summary: This study on morphological changes in Laizhou Bay over the past half century revealed that the main factor influencing the changes was coastal reclamation activities, with the Yellow River runoff also playing an important role in controlling these changes.
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2021)
Article
Geochemistry & Geophysics
Ramona Pelich, Marco Chini, Renaud Hostache, Patrick Matgen, Carlos Lopez-Martinez
Summary: This study proposes an automatic method for coastline detection using the Sentinel-1 time series, which averages the dynamical variations of coastal areas and accurately classifies sea and land pixels through an iterative hierarchical tiling method. The results show significant benefits in Earth observation-monitoring applications, such as ship detection and floodwater mapping, with an overall agreement ranging from 80% to 90%.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2021)
Article
Environmental Sciences
Byoung-Jun Lim, You-Soon Chang, Yang-Ki Cho
Summary: Because of continuous coastal development, it is important to analyze the impact of persistent topographic changes. This study used an ocean model to simulate tidal changes in response to gradual reclamation in the East China and Yellow Seas. The results showed that persistent man-made reclamation can cause significant regional tidal changes through tidal energy redistribution and modification.
ENVIRONMENTAL RESEARCH LETTERS
(2023)
