Marine Technology Society Journal最新文献

Green Energy, Blue Economy: Integrating Renewable Energy and Sustainable Development for Bangladesh 绿色能源，蓝色经济：为孟加拉国整合可再生能源与可持续发展

IF 0.8 4区工程技术

Marine Technology Society Journal Pub Date : 2023-12-15 DOI: 10.4031/mtsj.57.4.4

Hafez Ahmad, Felix Jose, Md. Shaiful Islam, Shakila Islam Jhara

{"title":"Green Energy, Blue Economy: Integrating Renewable Energy and Sustainable Development for Bangladesh","authors":"Hafez Ahmad, Felix Jose, Md. Shaiful Islam, Shakila Islam Jhara","doi":"10.4031/mtsj.57.4.4","DOIUrl":"https://doi.org/10.4031/mtsj.57.4.4","url":null,"abstract":"Abstract The coastal zone of Bangladesh is of immense importance and provides a myriad of services and functions, including fisheries resources, sustaining biodiversity, supporting trade and transportation, and holding visually pleasing monuments and recreational opportunities\u0000 for the country's economic growth and the well-being of its people. The article highlights the significant efforts made by the Government of Bangladesh toward promoting the blue economy, including the development of renewable energy programs (wind farms), sustainable tourism, fisheries aquaculture,\u0000 and working on a long-term plan for coastal zone management. The study also examines the challenges facing Bangladesh's marine and coastal fisheries, including overfishing, indiscriminate catch and kill of juveniles, and marine pollution. Additionally, the article discusses the growing popularity\u0000 of mariculture, especially seaweed culture, in the coastal waters of Bangladesh as an alternative to dwindling marine fisheries. Research also highlights the need for greater efforts toward the conservation and sustainable management of marine and coastal resources, including fisheries, aquaculture,\u0000 and tourism, to ensure their long-term viability and economic benefits for the country.","PeriodicalId":49878,"journal":{"name":"Marine Technology Society Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drifter-Observed Reversal of the South China Sea Western Boundary Current From Summer to Autumn 漂流器观测到的南海西边界洋流从夏季到秋季的逆转

IF 0.8 4区工程技术

Marine Technology Society Journal Pub Date : 2023-12-15 DOI: 10.4031/mtsj.57.4.6

Zhiyuan Hu, Longqi Yang, Zhaozhang Chen, Jia Zhu, Zhenyu Sun, Jianyu Hu

引用次数: 0

Shallow Water Acoustic Vector Sensor Array AutoNomous System (SVAAN) for Coastal Surveillance Applications 用于海岸监视应用的浅水声学矢量传感器阵列自动寻的系统 (SVAAN)

IF 0.8 4区工程技术

Marine Technology Society Journal Pub Date : 2023-12-15 DOI: 10.4031/mtsj.57.4.3

Malarkodi Amirthalingam, S. Lokhande, Thirunavukkarasu Ayyadurai, Latha Ganesan, G. Potty

{"title":"Shallow Water Acoustic Vector Sensor Array AutoNomous System (SVAAN) for Coastal Surveillance Applications","authors":"Malarkodi Amirthalingam, S. Lokhande, Thirunavukkarasu Ayyadurai, Latha Ganesan, G. Potty","doi":"10.4031/mtsj.57.4.3","DOIUrl":"https://doi.org/10.4031/mtsj.57.4.3","url":null,"abstract":"Abstract Shallow Water Acoustic Vector Sensor Array AutoNomous System (SVAAN) is a passive acoustic monitoring system using vector sensors. Acoustic vector sensors measure acoustic pressure and particle velocity, and an array of such sensors are very useful in underwater\u0000 source localization. SVAAN is thus developed for surveillance applications in coastal waters and designed for a 100-m depth rating. The main objective of this work is to present SVAAN that is developed as a sea bed mounted system, consisting of two vector sensors and four hydrophones. In addition,\u0000 an inertial sensor has been included to measure the system orientation when deployed. This was deployed as a bottom mounted unit in the shallow waters of South-West Bay of Bengal to measure the noise from boats/ships and localize the source. The acoustic data are analyzed, Direction of Arrival\u0000 is estimated using Multiple Signal Classification for source localization, and the performance of SVAAN is studied. In addition to that, the tracking of boat noise has been estimated from the experiment data. Results and further enhancement of the system are discussed.","PeriodicalId":49878,"journal":{"name":"Marine Technology Society Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139000740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improve Ocean Sensing Using Unmanned Aerial Vehicles 利用无人飞行器改进海洋传感

IF 0.8 4区工程技术

Marine Technology Society Journal Pub Date : 2023-12-15 DOI: 10.4031/mtsj.57.4.1

Thomas Q. Donaldson, Andy von Flotow, Shaju John, Justin Goff, Oleg Yakimenko, Rob Brodie

{"title":"Improve Ocean Sensing Using Unmanned Aerial Vehicles","authors":"Thomas Q. Donaldson, Andy von Flotow, Shaju John, Justin Goff, Oleg Yakimenko, Rob Brodie","doi":"10.4031/mtsj.57.4.1","DOIUrl":"https://doi.org/10.4031/mtsj.57.4.1","url":null,"abstract":"Abstract This paper discusses the day and night capability of a newly developed optical sensing suite flown on manned and unmanned aircraft in Monterey Bay and Santa Barbara, CA, during 2022 to detect marine mammals. New developments of electro-optical sensors integrated\u0000 on medium and long-endurance unmanned aerial vehicles (UAVs) can provide cost-effective, qualitative sensing of marine biodiversity, to include species identification. Processing of captured imagery in both day and night applications has proven effective in removing surface-level reflections\u0000 and background noise, which allows sensing of subsurface marine life to several attenuation lengths. Leveraging bioluminescence as a natural image enhancement phenomenon along with advanced signal processing of imagerycaptured by this sensing suite improves the quality of nighttime detection\u0000 and species identification. Concepts and applications for this sensing suite integrated on UAV platforms for ocean food-chain modeling and maritime traffic avoidance are discussed, including deployment strategies for the Channel IslandsNational Marine Sanctuary off the California coast.","PeriodicalId":49878,"journal":{"name":"Marine Technology Society Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138997410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cooperative Ocean Survey Method by a UAV and an AUV: State Estimation of the AUV Based on the UAV 无人飞行器和自动潜航器合作勘测海洋方法：基于无人飞行器的自动潜航器状态估计

IF 0.8 4区工程技术

Marine Technology Society Journal Pub Date : 2023-12-15 DOI: 10.4031/mtsj.57.4.5

Takumi Matsuda, Yusuke Yokota

引用次数: 0

Biofuels and Electrofuels as Alternative Green Fuels for Marine Applications: A Review 生物燃料和电燃料作为海洋绿色替代燃料的研究进展

4区工程技术

Marine Technology Society Journal Pub Date : 2023-09-27 DOI: 10.4031/mtsj.57.3.2

Mahmoud Abdel-Nasser Saadeldin, Mohamed M. Elgohary, Maged Abdelnaby, Mohamed R. Shouman

{"title":"Biofuels and Electrofuels as Alternative Green Fuels for Marine Applications: A Review","authors":"Mahmoud Abdel-Nasser Saadeldin, Mohamed M. Elgohary, Maged Abdelnaby, Mohamed R. Shouman","doi":"10.4031/mtsj.57.3.2","DOIUrl":"https://doi.org/10.4031/mtsj.57.3.2","url":null,"abstract":"Abstract The International Maritime Organization (IMO) has imposed strict regulations to limit marine emissions because the maritime sector is expanding around the world, producing large amounts of emissions that are harmful to the atmosphere. Green alternative fuels, such as biofuels derived from biomass and electrofuels derived from syngas sources, play critical roles in meeting IMO requirements for clean energy with zero emissions. This study presents a brief review of two types of green fuels: 1) the production of biofuels from biomass sources by using various methods, such as the gasification process and the pyrolysis process, as well as the effectiveness of adding a variety of catalysts, and 2) electrofuels as a new method to oppose global warming by employing various carbon capture strategies and renewable hydrogen production based on water electrolysis. Following that, the significant effect of using these green fuels in marine applications is discussed. Overall, the primary goal of this article is to provide data for researchers and industrialists interested in biofuels and electrofuels as promising alternatives to fossil fuels. A large portion of the existing literature published in highly regarded journals, including the most recently published reports, is analyzed.","PeriodicalId":49878,"journal":{"name":"Marine Technology Society Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135579369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying Self-Noise of the Seaglider AUV Using a Passive Acoustic Monitor 利用被动式声学监测仪量化滑翔机水下航行器的自噪声

4区工程技术

Marine Technology Society Journal Pub Date : 2023-09-27 DOI: 10.4031/mtsj.57.3.5

Melodie Grasso, Luis Pomales Velázquez, Lora Van Uffelen

{"title":"Quantifying Self-Noise of the Seaglider AUV Using a Passive Acoustic Monitor","authors":"Melodie Grasso, Luis Pomales Velázquez, Lora Van Uffelen","doi":"10.4031/mtsj.57.3.5","DOIUrl":"https://doi.org/10.4031/mtsj.57.3.5","url":null,"abstract":"Abstract The Seaglider, a type of underwater glider, is a relatively quiet vehicle in comparison with propelled autonomous underwater vehicles, making it a desirable acoustic receiving platform. Vehicle operations, such as pumping/bleeding oil to change buoyancy, shifting/rotating the battery to change pitch/roll, and oceanographic data collection, do, however, produce some self-noise. This system performance study analyzes the prevalence, frequency content, duration, and levels of self-noise associated with vehicle operations using data collected with a passive acoustic monitoring system mounted on the body of a Seaglider vehicle. Guidance and control functions, including pitch, roll, and buoyancy changes, were the major source of platform noise, producing broadband noise ranging from less than a second to over 3 min in duration, with sound pressure levels of 120‐145.5 dB re 1μPa. Frequencies below 10 kHz were the most impacted by self-noise, with a maximum 1/3 octave level of 137.5 dB re 1μPa in the 2.5kHz band caused by the pumping of oil in the variable buoyancy device. Guidance and control changes occurred during 4%‐13% of the dive for dives greater than 500 m. The bulk of these operations, however, were performed near the surface and apogee of the dive and typically affected only about 6% of the dive cycle duration for deep dives.","PeriodicalId":49878,"journal":{"name":"Marine Technology Society Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135579380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Full Issue 完整的问题

4区工程技术

Marine Technology Society Journal Pub Date : 2023-09-27 DOI: 10.4031/mtsj.57.3.10

引用次数: 0

Satellite Remote Sensing for Wildlife Research in the Polar Regions 极地野生动物研究的卫星遥感

4区工程技术

Marine Technology Society Journal Pub Date : 2023-09-27 DOI: 10.4031/mtsj.57.3.1

Heather J. Lynch

{"title":"Satellite Remote Sensing for Wildlife Research in the Polar Regions","authors":"Heather J. Lynch","doi":"10.4031/mtsj.57.3.1","DOIUrl":"https://doi.org/10.4031/mtsj.57.3.1","url":null,"abstract":"Abstract Wildlife research in the polar regions has historically been limited by the logistical constraints of site access, but recent developments in the use of satellite imagery for animal detection has unlocked new possibilities for pan-Arctic and pan-Antarctic monitoring of animal populations. A range of different sensor systems have been used for wildlife research, but most have focused on optical sensors that collect data in the visible spectrum and can be directly interpreted similar to a photograph. These include medium-resolution sensors like Landsat (30 m) and Sentinel-2 (10 m) and very high-resolution sensors such as Maxar's Worldview-2 (51 cm) and Worldview-3 (31 cm). These long-established satellite systems have been joined more recently by constellations of smaller satellites (so-called “Small Sats”) that offer imagery of comparable spatial and spectral resolution to those operated by Maxar. This rapidly expanding portfolio of earth observation satellites offers the potential for a radical transformation of wildlife research in polar regions, but the sheer volume of data being collected now eclipses our capacity for manual imagery interpretation. To meet this challenge, researchers are now harnessing advances in computer vision that, coupled with improvements in computing capacity, promise to deliver a new era in our ability to monitor polar wildlife.","PeriodicalId":49878,"journal":{"name":"Marine Technology Society Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135580162","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Managing Editor's Introduction: Personnel and Processes Updates 总编简介:人事和流程更新

4区工程技术

Marine Technology Society Journal Pub Date : 2023-09-27 DOI: 10.4031/mtsj.57.3.8

Kacey Beddoes

引用次数: 0