Article
Oceanography
Yaqing Shu, Xinyue Wang, Zhiqiu Huang, Lan Song, Zhongqiang Fei, Langxiong Gan, Yanmin Xu, Jianchuan Yin
Summary: With the increase in maritime traffic, the generation of wastewater by ships in coastal areas has become a major concern. This study presents a model that estimates the spatiotemporal distribution of wastewater, including greywater and sewage, generated by ships in coastal areas. The model provides insights into the spatial and temporal variations of wastewater and highlights the contributions of different ship types to the total amount of wastewater.
OCEAN & COASTAL MANAGEMENT
(2022)
Article
Engineering, Marine
Aliyu Abdullahi, Subhamoy Bhattacharya, Chao Li, Yiqing Xiao, Ying Wang
Summary: The study focuses on the behavioural patterns of offshore wind turbines, particularly large ones supported on monopiles, to prevent negative impacts on their serviceability arising from modal property and foundation tilt changes. Data collected over 10 years is used to analyze load cases and estimating forces and moments acting on a prototype 10 MW OWT, revealing the potential underestimation of natural frequencies and tilt by fixed amplitude cyclic loads. By conducting long term model tests, the study aims to bridge the gap in understanding and predicting OWT behaviors.
Article
Engineering, Marine
Meiyan Zou, Mingsheng Chen, Ling Zhu, Lin Li, Wenhua Zhao
Summary: This study presents a Constant Parameter Time Domain Model (CPTDM) that combines the damping lid method and state-space model to evaluate the wave-induced dynamics of floating structures. The study finds that a larger damping lid factor helps to decrease the amplitude of the impulse response functions, and the developed model performs well for different wave frequencies and headings.
Review
Geochemistry & Geophysics
Camrin D. Braun, Martin C. Arostegui, Simon R. Thorrold, Yannis P. Papastamatiou, Peter Gaube, Jorge Fontes, Pedro Afonso
Summary: Many large marine predators are capable of diving from surface waters to depths below 200 m. This ability has independently evolved in various marine mammals, reptiles, birds, teleost fishes, and elasmobranchs. There are several plausible hypotheses for deep-diving behavior, but testing them requires new methods to quantify animal behavior and biophysical oceanographic processes at coherent spatiotemporal scales. Knowledge gaps include understanding ecological connections between surface waters and mesopelagic habitats, as well as the value of ecosystem services provided by the biomass in the ocean twilight zone. Given the increasing pressure on twilight zone fisheries, it is crucial to understand the importance of the deep pelagic ocean for large marine predators.
ANNUAL REVIEW OF MARINE SCIENCE
(2022)
Review
Engineering, Marine
Nerea Portillo Juan, Vicente Negro Valdecantos
Summary: This article reviews the application of Artificial Neural Networks (ANNs) in ocean and maritime engineering, covering its origins and current state. After analyzing over 90 studies, the article presents general rules and common methods for applying ANNs in ocean engineering, as well as identifying gaps in research.
Article
Oceanography
Jing Sun, Jichao Miao, Hairong Mu, Jinhui Xu, Ningning Zhai
Summary: This study proposes a framework for evaluating marine ecological carrying capacity and analyses the dynamic trend in Shandong province, China using data from 2008 to 2017. The results reveal that the carrying capacity in Shandong province varied during this period, and factors such as population growth, increased number of tourists, and industrial pollution contributed to the decline in carrying capacity.
OCEAN & COASTAL MANAGEMENT
(2022)
Article
Engineering, Marine
Jieyan Chen, Moo-Hyun Kim
Summary: As international efforts to address climate change grow, many countries and companies have set clear net zero goals by accelerating renewable energy development. Offshore wind energy, as a renewable energy source, has attracted attention and is an active research area. However, the design of offshore wind turbine structures faces challenges, requiring advanced optimization technology to address them.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Marine
Rong Zhen, Ziqiang Shi, Jialun Liu, Zheping Shao
Summary: This paper proposes a novel method for assessing regional ship collision risk in complex waters by combining density clustering and multiple influence factors. The method accurately quantifies ship collision risk and effectively identifies high-risk ships.
Article
Engineering, Marine
Zhenzhou Zhao, Ruifang Jiang, Junxin Feng, Huiwen Liu, Tongguang Wang, Wenzhong Shen, Ming Chen, Dingding Wang, Yige Liu
Summary: This paper provides a comprehensive review of state-of-the-art vortex generators (VGs) tested in the wind turbine field. It illustrates the basic principle of VG-related flow control and discusses the effects of VGs on wind turbine blades. The paper also proposes future research directions and discusses aerodynamic factors impacting VG behavior.
Article
Engineering, Ocean
Wei Shi, Lixian Zhang, Madjid Karimirad, Constantine Michailides, Zhiyu Jiang, Xin Li
Summary: In this paper, fully coupled time-domain analysis is conducted to investigate the impact of second-order wave hydrodynamic loads combined with aerodynamic loads on the dynamic responses of three different semisubmersible floating offshore wind turbines (semi-FOWTs) under normal and extreme sea conditions. The simulation results show that the second-order hydrodynamic loads play a significant role in the motion and structural responses under extreme sea conditions, while the aerodynamic loads greatly affect the dynamic responses under normal operational conditions. The findings also suggest that water depth has a larger impact on the motion and force responses of the semi-FOWTs under extreme sea conditions.
APPLIED OCEAN RESEARCH
(2023)
Review
Geochemistry & Geophysics
Gregory C. Johnson, Shigeki Hosoda, Steven R. Jayne, Peter R. Oke, Stephen C. Riser, Dean Roemmich, Tohsio Suga, Virginie Thierry, Susan E. Wijffels, Jianping Xu
Summary: Argo, an international network of nearly 4,000 autonomous robotic profiling floats, has revolutionized physical oceanography. After two decades, Argo data have supported thousands of scientific publications and improved real-time forecasts and projections.
ANNUAL REVIEW OF MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
P. N. Trathan, V Warwick-Evans, E. F. Young, A. Friedlaender, J. H. Kim, N. Kokubun
Summary: Fishery demand for Antarctic krill is increasing and has the potential to contribute significantly to global food security. However, current fishery management is data-limited, leading to calls for revised strategies that consider ecosystem operation at smaller spatial and temporal scales, particularly in relation to krill-dependent predators.
JOURNAL OF MARINE SYSTEMS
(2022)
Article
Engineering, Marine
Mingshuo Cao, Yujia Liu, Tiantian Gai, Mi Zhou, Hamido Fujita, Jian Wu
Summary: This article proposes a comprehensive star rating approach for cruise ships by combining subjective and objective evaluation. It establishes an index system, adopts modified TOPSIS to handle objective data, defines a distributed linguistic star rating function, and presents a novel weight calculation method. The article also introduces the personalized individual semantics model to deal with uncertainty in the star rating process. Finally, it collects data of nine cruise ships to obtain their star rating results and provides suggestions for improvement.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Review
Engineering, Marine
Zheng Zeng, Chenxin Lyu, Yuanbo Bi, Yufei Jin, Di Lu, Lian Lian
Summary: This paper provides a detailed literature review of hybrid aerial vehicles (HAUV) and their cross-domain mobility. It discusses the importance of the control system in ensuring smooth air-water transitions for HAUV and reviews recent developments in this area. The paper also highlights the challenges that need to be addressed in developing HAUV with persistent autonomy.
Article
Engineering, Marine
Emad Sobhani, Amir R. Masoodi
Summary: This paper investigates the dynamic performance of Connected Elliptical-Cylindrical Shells (CECSs) using nanocomposite materials. The equivalent mechanical characteristics of the CECSs are obtained, and the natural frequencies of CECSs with different boundary conditions are numerically evaluated. The effects of various parameters on the frequency parameter of CECSs are also studied.
Article
Engineering, Civil
Miao Yang, Haiwen Wang, Ke Hu, Ge Yin, Zhiqiang Wei
Summary: This article reports a convolutional neural network (CNN)-based inception-attention network (IA-Net) model for classifying underwater images from natural images. By simulating the visual correlation mechanism of images taken from special environments, the importance of context background in addition to salient objects is demonstrated. The IA-Net achieves high accuracy in underwater image classification and outperforms other networks in distinguishing underwater images from similar nonunderwater images.
IEEE JOURNAL OF OCEANIC ENGINEERING
(2022)
Article
Limnology
Marc Picheral, Camille Catalano, Denis Brousseau, Herve Claustre, Laurent Coppola, Edouard Leymarie, Jerome Coindat, Fabio Dias, Sylvain Fevre, Lionel Guidi, Jean Olivier Irisson, Louis Legendre, Fabien Lombard, Laurent Mortier, Christophe Penkerch, Andreas Rogge, Catherine Schmechtig, Simon Thibault, Thierry Tixier, Anya Waite, Lars Stemmann
Summary: Autonomous and cabled ocean platforms are transforming our understanding of marine systems by providing 4D monitoring of the water column beyond the reach of ship-based surveys. The new UVP6 camera is capable of monitoring large particulate matter and plankton on autonomous platforms, providing data of comparable quality to larger sensors.
LIMNOLOGY AND OCEANOGRAPHY-METHODS
(2022)
Article
Meteorology & Atmospheric Sciences
Joaquin Trinanes, N. F. Putman, G. Goni, C. Hu, M. Wang
Summary: Massive blooms of pelagic Sargassum have caused disruptions to coastal communities, impacting human health, tourism, fishing, navigation, and nearshore ecosystems. The Sargassum Inundation Report (SIR) uses satellite-based methodology to estimate and predict the coastal inundation of Sargassum, providing a comprehensive assessment of its geographic distribution and temporal variation.
JOURNAL OF OPERATIONAL OCEANOGRAPHY
(2023)
Review
Marine & Freshwater Biology
Karthikeyan Perumal, Subagunasekar Muthuramalingam
Summary: This critical review systematically evaluates the sources, occurrence, and spatial distribution of microplastics in marine sediments. It also examines the characteristics of keywords, authors, co-authors, country, bibliographical analysis, and publication results using VOSviewer. The study identifies the types of polymers found in the environment, with polyethylene, polypropylene, and polystyrene being the most common. The review provides comprehensive information to help the scientific community understand the problems and devise control measures to minimize plastic consumption and the resulting risks to the marine ecosystem.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Oceanography
J. S. Saranya, M. K. Roxy, Panini Dasgupta, Ajay Anand
Summary: This study investigates the genesis and trend of marine heatwaves (MHWs) in the Indian Ocean from 1982 to 2018 and their impact on the Indian summer monsoon. The findings suggest that the rapid warming in the Indian Ocean plays a critical role in increasing the number of MHWs, while El Nino has a prominent influence on their occurrence during the monsoon.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
