Ocean & Coastal Management最新文献_第4页

Peer-to-peer exchanges on island resilience planning for transformative adaptation to climate hazards 关于岛屿复原力规划的同行交流，以促进对气候灾害的变革性适应

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-28 DOI: 10.1016/j.ocecoaman.2024.107453

Laura Brewington , Victoria W. Keener , Kaʻāina Hull , Ruby Pap , Marie Williams

Peer-to-peer exchange across sectors or regions can promote transparency and social learning, and enhance the scalability and transferability of research outputs and outcomes. From 2021 to 2023, the Pacific Research on Island Solutions for Adaptation (Pacific RISA) climate adaptation research program facilitated four such exchanges designed to inform the County of Kauaʻi, Hawaiʻi, in the development of a county-wide Climate Adaptation Plan. Through these exchanges, Pacific RISA worked as a boundary organization with dozens of representatives from various departments and agencies in Hawaiʻi and nationally to identify practical adaptation solutions. Exchange outcomes included new Sea Level Rise Constraint District legislation that made Kauaʻi one of the first municipalities in the United States to regulate construction based on future sea level rise impacts; a deeper understanding of statewide frameworks related to adaptation and managed retreat; and the use of peer exchanges as a model for transparent and inclusive community engagement and communication. High-level leadership and strong science-based risk-assessment were identified as critical for planning and legislative success. Taken together, this peer-to-peer exchange process has helped foster transformational adaptation to meet the rapidly growing needs of communities in Hawaiʻi that are experiencing the impacts of climate change, and led to accelerated policy implementation scaling across seemingly disparate regions.

跨部门或跨地区的对等交流可以促进透明度和社会学习，提高研究成果和产出的可扩展性和可转让性。从 2021 年到 2023 年，太平洋岛屿适应解决方案研究项目（Pacific RISA）的气候适应研究计划促成了四次此类交流，旨在为夏威夷考艾岛县制定全县气候适应计划提供信息。通过这些交流，太平洋地区气候适应研究协会（Pacific RISA）作为一个边界组织，与夏威夷及全国各部门和机构的数十名代表合作，共同确定切实可行的适应解决方案。交流的成果包括：新的海平面上升限制区立法使考爱岛成为美国首批根据未来海平面上升影响对建筑进行监管的城市之一；加深了对与适应和有管理的撤退相关的全州框架的理解；将同行交流作为透明、包容的社区参与和沟通的典范。高层领导和强有力的科学风险评估被认为是规划和立法成功的关键。总之，这种同行交流过程有助于促进转型适应，以满足夏威夷社区迅速增长的需求，这些社区正在经受气候变化的影响，并促使看似不同的地区加快政策实施的规模。

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引用次数: 0

Managing marine aquaculture by assessing its contribution to ecosystem services provision: The case of Mediterranean mussel, Mytilus galloprovincialis 通过评估海洋水产养殖对生态系统服务的贡献来管理海洋水产养殖：地中海贻贝案例

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-25 DOI: 10.1016/j.ocecoaman.2024.107456

Andrea Mattia Pacifico , Daniele Brigolin , Luca Mulazzani , Mara Semeraro , Giulio Malorgio

Assessing the ecosystem services (ESs) provided by marine aquaculture is a promising approach to support policymakers in planning and management processes. Among the different types of marine aquaculture, mussel farming holds the potential to address the dual challenges of delivering food security and providing multiple ESs, emerging as a sustainable human activity and animal protein production. This paper employed a Total Economic Value (TEV) approach to quantify four ESs that were expected to be influenced by Mediterranean mussel, Mytilus galloprovincialis, aquaculture in the Mar Piccolo of Taranto (Ionian Sea), including (i) food provision, (ii) carbon sequestration, (iii) nutrient removal, and (iv) local identity. The findings provided valuable data regarding the multifunctionality of mussel aquaculture in providing non-commodity outputs, supporting policy recommendations. Specifically, the results revealed that mussel aquaculture enhances the flow of regulating services, thus demonstrating the overall sustainability of the practices. Local identity emerged as the greatest contributor to the TEV, due to the activity's longstanding tradition in the study area. Economic values per unit of the assessed ESs were provided for implementation in real-world scenarios at the policy level, enabling the transferability of the study's results in a broader international context. The study advocated for integrating the estimated ESs values into decision-making tools and during marine spatial planning processes to operationalize economic valuations. Overall, the findings can be framed within ongoing research efforts aimed at developing innovative methodologies to support the implementation of the Ecosystem Approach to Aquaculture (EAA) and to inform decision-making in the context of marine spatial planning.

评估海水养殖提供的生态系统服务（ESs）是支持政策制定者规划和管理过程的一种有前途的方法。在不同类型的海水养殖中，贻贝养殖有潜力应对提供粮食安全和多种生态系统服务的双重挑战，成为一种可持续的人类活动和动物蛋白生产。本文采用总经济价值（TEV）方法，量化了塔兰托皮科洛海（爱奥尼亚海）地中海贻贝（Mytilus galloprovincialis）水产养殖预计会影响的四种环境服务，包括（i）食物供应、（ii）碳固存、（iii）营养清除和（iv）地方认同。研究结果提供了有关贻贝养殖在提供非商品产出方面的多功能性的宝贵数据，为政策建议提供了支持。具体而言，研究结果表明，贻贝养殖增强了调节服务的流动，从而证明了这种做法的整体可持续性。由于贻贝养殖活动在研究区域具有悠久的传统，因此当地特征成为 TEV 的最大贡献者。评估的环境服务的单位经济价值可在政策层面的实际情景中实施，从而使研究结果能够在更广泛的国际背景下进行转移。该研究提倡在海洋空间规划过程中将估计的生态系统服务价值纳入决策工具，以实现经济价值的可操作性。总之，研究结果可纳入正在进行的旨在开发创新方法的研究工作中，以支持水产养殖生态系统方法（EAA）的实施，并为海洋空间规划决策提供信息。

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引用次数: 0

Independent operation or coordinated integration? Enhancing the system resilience of ports in dealing with congestion based on a bilateral bargaining game 独立运营还是协调整合？基于双边讨价还价博弈，增强港口在应对拥堵时的系统弹性

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-25 DOI: 10.1016/j.ocecoaman.2024.107437

Jihong Chen , Tingfang Li , Huida Zhao

Fierce competition between ports may trigger substantial issues including port congestion, further wreaking havoc on the system resilience of ports. The coordinated integration of ports becomes a feasible and indispensable strategy for mitigating competitive pressure and enhancing the system resilience. In a two-tier supply chain within trade activities between two adjacent ports, we discuss the competitive and cooperative strategy selections between ports by a bilateral bargaining game to investigate how to improve the system resilience of ports in coping with congestion. The results reveal that port cooperation has the advantage of improving throughput and the system resilience of ports by alleviating port congestion, but becomes more challenging as the advantageous port's bargaining power and competitive intensity increase. Although under the pressure of high freight rates, shipping companies are still willing to actively participate in and promote the coordinated integration of ports for a premium service provided by ports. From the overall shipping supply chain, port cooperation optimizes the entire operation of port system and promotes profits from the high system resilience, demonstrating a better environmental performance by dealing with congestion. In light of the conclusions, it is essential to vigorously establish a port-port alliance through coordinated contracts to tackle congestion and enhance resilience, thereby boosting competitiveness and ensuring profitability in the whole system of ports.

港口之间的激烈竞争可能引发港口拥堵等实质性问题，进一步破坏港口的系统恢复能力。港口间的协调整合成为缓解竞争压力、增强系统恢复能力不可或缺的可行策略。在相邻两个港口之间贸易活动的双层供应链中，我们通过双边讨价还价博弈讨论了港口之间的竞争与合作策略选择，以研究如何提高港口在应对拥堵时的系统弹性。结果表明，港口合作具有通过缓解港口拥堵来提高吞吐量和港口系统弹性的优势，但随着优势港口议价能力和竞争强度的增加，合作变得更具挑战性。虽然面临高运费的压力，但航运公司仍愿意积极参与并推动港口的协调整合，以获得港口提供的优质服务。从整个航运供应链来看，港口合作优化了整个港口系统的运作，促进了系统高弹性带来的利润，通过应对拥堵表现出更好的环境绩效。鉴于上述结论，有必要通过协调合同大力建立港口联盟，以解决拥堵问题，增强弹性，从而提高竞争力，确保整个港口系统的盈利能力。

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引用次数: 0

Analysis of contemporary climate adaptation policies in Ireland and their application to the coastal zone 分析爱尔兰当代气候适应政策及其在沿海地区的应用

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-25 DOI: 10.1016/j.ocecoaman.2024.107404

Paul Lawlor , J.A.G. Cooper

Global climate change presents a range of impacts on Ireland's economy and society with particular challenges facing coastal areas. The need to adapt to these risks is considered both urgent and essential and the policy framework has evolved to meet these challenges with the adoption of climate action legislation and a National Adaptation Framework (NAF) to facilitate the transition to a climate-resilient economy and society by 2050. This paper briefly reviews the European and Irish government policy context for sectoral climate adaptation before reviewing and classifying the sectoral policy measures introduced to reduce vulnerabilities to climate change impacts. While the analysis reveals that progress has been made by adopting climate action legislation and by developing a suite of climate action focussed plans, it also demonstrates that the policy measures included in the Sectoral Adaptation Plans to reduce climate change vulnerabilities are limited in number and lacking in effectiveness. Furthermore, their application to cross-cutting themes, exemplified by the coast, is inadequate to deal with the practical climate change issues. These findings indicate that Ireland is at a preliminary stage when assessed according to the EU adaptation preparedness scorecard.

全球气候变化对爱尔兰的经济和社会产生了一系列影响，沿海地区面临着特别的挑战。适应这些风险的需求被认为是紧迫和必要的，政策框架也在不断发展以应对这些挑战，爱尔兰通过了气候行动立法和国家适应框架（NAF），以促进到2050年向具有气候适应能力的经济和社会过渡。本文简要回顾了欧洲和爱尔兰政府在部门气候适应方面的政策背景，然后对为降低气候变化影响脆弱性而引入的部门政策措施进行了回顾和分类。分析表明，通过气候行动立法和制定一系列以气候行动为重点的计划已经取得了进展，但同时也表明，部门适应计划中包含的旨在降低气候变化脆弱性的政策措施数量有限且缺乏有效性。此外，这些措施在跨领域主题上的应用（以海岸为例）不足以应对实际的气候变化问题。这些调查结果表明，根据欧盟适应准备计分卡进行评估，爱尔兰还处于初级阶段。

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引用次数: 0

A fuzzy bayesian quantitative risk assessment for language and communication induced accidents in maritime operations 海上作业中语言和通信诱发事故的模糊贝叶斯定量风险评估

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-25 DOI: 10.1016/j.ocecoaman.2024.107449

Jingbo Yin , Rafi Ullah Khan , Muhammad Afzaal , R. Nawaz , Xiao Shanshan , Arshad Jamal

Language and communication issues pose a formidable risk to maritime safety. In maritime transportation, the effectiveness of speech acts and closed-loop communication is vulnerable to a wide array of factors. However, literature quantifying the impact of these factors on language and communication-induced accident risk is scarce. To that end, this study conducts a holistic quantitative risk assessment for the language and communication issues induced accidents in maritime transportation. The methodology consists of employing expert judgments, past literature, and accident reports to identify causation factors and a Fuzzy Bayesian approach to risk analysis. Bidirectionally propagated inferential analysis was conducted to determine the impact of factors under consideration in various scenarios. Lack of language proficiency and violations of the roles and regulations of communication were identified as prominent accident causation factors. Simultaneous evidence-setting analysis was conducted to determine the domino effect of the causation factors. A sensitivity analysis was performed to reveal the most critical factors causing language and communication issues induced accident risk. This study unravels the nuanced dynamics of language-related risk in maritime safety. The findings of this study can be used to propose guidelines and policies for effective communication and hence safer maritime operations.

语言和沟通问题给海上安全带来了巨大风险。在海上运输中，语言行为和闭环沟通的有效性容易受到各种因素的影响。然而，量化这些因素对语言和沟通引发的事故风险的影响的文献却很少。为此，本研究对语言和沟通问题引发的海运事故进行了整体量化风险评估。评估方法包括利用专家判断、过往文献和事故报告来确定致因因素，并采用模糊贝叶斯方法进行风险分析。通过双向传播推理分析，确定各种情况下考虑因素的影响。缺乏语言能力和违反沟通角色和规定被确定为突出的事故致因因素。同时进行了证据设定分析，以确定致因因素的多米诺效应。进行了敏感性分析，以揭示导致语言和沟通问题诱发事故风险的最关键因素。本研究揭示了海事安全中语言相关风险的微妙动态。研究结果可用于提出有效沟通的指导方针和政策，从而提高海上作业的安全性。

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引用次数: 0

Tracing offshore marine ecosystem asset changes based on physical accounting: A case of Xiamen Sea Area 基于物理核算的近海海洋生态系统资产变化追踪：厦门海域案例

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-24 DOI: 10.1016/j.ocecoaman.2024.107420

Junbo Wang , Benrong Peng , Lingfeng Huang , Keliang Chen

Assessing temporal and spatial changes in marine ecosystem assets is critical for the capitalized management of natural resources and their contribution to human well-being. However, quantifying these changes using different inclusion methods in the System National Account is a challenge. Ecosystem accounting has become a popular topic in recent years, particularly after the System of Environmental and Economic Accounting-Ecosystem Accounting was published in 2021. However, few practical studies have been conducted on offshore marine ecosystem accounting, including marine ecosystem assets and services. This study provides a systematic framework to prioritize the assessment of offshore marine ecosystem assets (extent and condition) in physical terms, including the determined indicators of physical accounts and the presentation of accounting results. We then used this framework to assess marine ecosystem assets in the Xiamen Sea Area selected from 2006 to 2020. The results show that: (a) The extent of the marine ecosystem in Xiamen decreased by 8.34% from 349.64 km² to 320.49 km², mainly caused by converting intertidal ecosystem into the land due to the demand for urban and industrial use sea. (b) The area of intertidal vegetation habitats (mangroves and salt marshes) increased from 23.22 hm² to 132.2 hm², with an increase of 4.7 times. The results also show that the restoration of the marine ecology in Xiamen has achieved remarkable results. (c) The marine ecosystem condition comprehensive index in Xiamen increased by 3.13% from 0.32 to 0.33. This shows that the marine ecosystem conditions in Xiamen remain well and have even slightly improved under the pressure of a rapidly developing economy and increasing population. This study provides practical technical methods for assessing offshore marine ecosystem in physical term to support integrated coastal management in coastal cities, and is important for assessing marine ecosystem services in the future.

评估海洋生态系统资产的时空变化对于自然资源的资本化管理及其对人类福祉的贡献至关重要。然而，在国民账户体系中使用不同的纳入方法量化这些变化是一项挑战。近年来，生态系统核算已成为一个热门话题，尤其是在 2021 年发布《环境和经济核算体系--生态系统核算》之后。然而，有关近海海洋生态系统核算（包括海洋生态系统资产和服务）的实际研究却很少。本研究提供了一个系统框架，从物理角度对近海海洋生态系统资产（范围和状况）进行优先评估，包括物理账户的确定指标和核算结果的呈现方式。然后，我们利用该框架评估了 2006 至 2020 年厦门海域的海洋生态系统资产。结果显示(a) 厦门海洋生态系统面积从 349.64 平方公里减少到 320.49 平方公里，减少了 8.34%，主要原因是城市和工业用海需求将潮间带生态系统转化为陆地。(b) 潮间带植被生境（红树林和盐沼）面积从 23.22 hm2 增加到 132.2 hm2，增加了 4.7 倍。结果也表明，厦门海洋生态修复取得了显著成效。(c) 厦门市海洋生态环境状况综合指数从 0.32 上升到 0.33，上升了 3.13%。这表明，在经济快速发展、人口不断增加的压力下，厦门海洋生态环境状况依然良好，甚至略有改善。该研究为近海海洋生态系统的物理评估提供了实用的技术方法，为沿海城市的海岸综合管理提供了支持，对未来海洋生态系统服务评估具有重要意义。

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引用次数: 0

A game-based decision-making method for multi-ship collaborative collision avoidance reflecting risk attitudes in open waters 基于游戏的多船协同避碰决策方法，反映开放水域的风险态度

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-23 DOI: 10.1016/j.ocecoaman.2024.107450

Jiongjiong Liu , Jinfen Zhang , Zaili Yang , Mingyang Zhang , Wuliu Tian

To accurately reflect risk attitudes towards ship intentions in multi-ship encounters, this paper develops a novel two-stage collaborative collision avoidance decision-making (CADM) model by incorporating intention prediction and real-time decision-making. We acquire prior knowledge of risk attitudes by analyzing Automatic Identification System (AIS) data and further estimate the probability distributions of encountering ship's risk attitude using Bayesian reasoning. By treating collision avoidance procedure as a static game with incomplete information, a predictive model for collision avoidance intentions is developed by taking account into risk attitude probabilities. Real-time decisions are then implemented according to different stages, and a collaborative CADM model is established by a game-decision cycle. Finally, a multi-ship encounter scenario is simulated under all combinations of risk attitudes, and the results are compared with those obtained under complete information. The results demonstrate that the proposed model can formulate avoidance actions that meet safety requirements under all combinations of risk attitudes. Further comparison with complete information proves the effectiveness of the risk attitude probability model, which is conducive to improving the decision-making flexibility and reducing complexity. The research findings enhance the collaborative decision-making, contributing to the development of autonomous navigation in open waters.

为了准确反映多船相遇时对船舶意图的风险态度，本文开发了一种新颖的两阶段协同避碰决策（CADM）模型，将意图预测和实时决策结合在一起。我们通过分析自动识别系统（AIS）数据获取风险态度的先验知识，并利用贝叶斯推理进一步估计相遇船舶风险态度的概率分布。通过将避碰程序视为具有不完全信息的静态博弈，并考虑到风险态度概率，建立了避碰意图预测模型。然后根据不同阶段实施实时决策，并通过博弈-决策循环建立协同 CADM 模型。最后，模拟了所有风险态度组合下的多船相遇情景，并将结果与完整信息下的结果进行了比较。结果表明，所提出的模型能够在所有风险态度组合下制定符合安全要求的避让行动。与完整信息的进一步比较证明了风险态度概率模型的有效性，有利于提高决策灵活性和降低复杂性。研究成果增强了协同决策能力，有助于开放水域自主导航的发展。

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引用次数: 0

The effect of failure on energy efficiency in maritime vessels autopilot systems 船舶自动驾驶系统故障对能源效率的影响

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-23 DOI: 10.1016/j.ocecoaman.2024.107451

Hürol Hocek , Devran Yazır , Cemalettin Aygün , Ünal Özdemir

The increasing demands for energy efficiency and environmental sustainability in the maritime industry have underscored the critical importance of optimizing autopilot systems, which, despite their significance, are often overlooked in ship energy efficiency management. The objective of this study is to enhance the energy efficiency of ships by focusing on the efficiency of autopilot systems, which play a significant role in the management of energy efficiency. The research emphasizes the need for effective decision support systems for ship operators, not only for optimizing ship speeds but also for making informed operational decisions. By utilizing Fuzzy Fault Tree Analysis (FFTA), the study identifies and prioritizes the causes of efficiency losses in autopilot systems and examines their frequency. Based on expert opinions, the research delves into the complexity of autopilot systems and the interactions among various components. Notably, the study highlights the impact of multiple factors on the efficiency of complex autopilot systems, elucidating their relationships through Minimum Cut Sets (MCS) analysis. Furthermore, attention was drawn to the “Improper Alarm Input” event caused by insufficient knowledge and awareness among ship operators, which hinders the effective use of autopilot systems. The findings demonstrate that decision support systems can increase energy efficiency and contribute to the reduction of operational errors by reducing the human factor, which is 99% effective on the “Inefficient Heading Control System”. Additionally, proper utilization of autopilot systems can lead to a decrease in a ship's carbon footprint and operating costs. Overall, the results can affect strategic decisions in ship energy efficiency management and encourage significant steps toward achieving International Maritime Organization's (IMO) sustainability objectives.

海运业对能源效率和环境可持续性的要求日益提高，这凸显了优化自动驾驶系统的极端重要性，尽管自动驾驶系统非常重要，但在船舶能源效率管理中却经常被忽视。本研究的目的是通过关注在能效管理中发挥重要作用的自动驾驶系统的效率来提高船舶能效。研究强调，船舶运营商需要有效的决策支持系统，这不仅是为了优化船速，也是为了做出明智的运营决策。通过利用模糊故障树分析法（FFTA），该研究确定了自动驾驶系统效率损失的原因和优先顺序，并检查了其发生频率。根据专家意见，研究深入探讨了自动驾驶系统的复杂性和各组件之间的相互作用。值得注意的是，研究强调了多种因素对复杂自动驾驶系统效率的影响，并通过最小割集（MCS）分析阐明了这些因素之间的关系。此外，研究还关注了由于船舶操作员知识和意识不足而导致的 "不当警报输入 "事件，这阻碍了自动驾驶系统的有效使用。研究结果表明，决策支持系统可以提高能效，并通过减少人为因素来减少操作失误，对 "低效航向控制系统 "的有效率为 99%。此外，正确使用自动驾驶系统可以减少船舶的碳足迹和运营成本。总之，研究结果可以影响船舶能效管理的战略决策，并鼓励朝着实现国际海事组织（IMO）的可持续发展目标迈出重要一步。

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引用次数: 0

Identifying community practices in marine benthic data usage in Florida 确定佛罗里达州使用海洋底栖生物数据的社区做法

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-22 DOI: 10.1016/j.ocecoaman.2024.107429

Xiaohui Qiao , Vincent Lecours , Anna E. Braswell , Joy E. Hazell

A significant proportion of Florida's population lives on the coast and is directly impacted by alterations to the coastal zone, weather disasters (e.g., hurricanes, erosion, flooding), or changes to ecosystem services. Data collected in Florida waters (including water quality, habitat health, bathymetry, and fisheries data) are important for the maintenance of coastal waters, communities, and ecosystems. Yet benthic data collected by a variety of stakeholders are often not shared or openly available, with little metadata to ease data reuse, and are often stored in incompatible formats. To assess the needs of government agencies, private companies, academic researchers, and data managers, we conducted a survey and organized an expert focus group to determine the current state of coastal and marine data usage and distribution in Florida. Through the survey, we asked participants to describe the types of data they use or collect, how they use that data, what limitations they encounter with data sharing, how and when they share their data, and what sorts of metadata standards they use in their work. We determined that many data producers and users are unaware of data standards and often do not follow best management practices for data collection and sharing. The sector of activity of the individual respondent (government, academic, non-profit) determined how data users were interacting with or collecting data and what standards they followed when sharing data. Our expert panel largely echoed our findings, with consistent, well-documented, and standardized datasets being the most important components for data integration in projects. To advance accessibility and reusability of benthic data, our project highlights the need for additional training of stakeholders on data standardization, collaboration and integration, which needs to be applied across institutions. A major need that was identified is tools that make data sharing and metadata creation easier and more efficient.

佛罗里达有相当一部分人口生活在沿海地区，他们直接受到沿海地区变化、气象灾害（如飓风、侵蚀、洪水）或生态系统服务变化的影响。在佛罗里达水域收集的数据（包括水质、生境健康、水深测量和渔业数据）对维护沿岸水域、社区和生态系统非常重要。然而，各种利益相关者收集的底栖生物数据往往不能共享或公开，几乎没有元数据来方便数据的再利用，而且通常以不兼容的格式存储。为了评估政府机构、私营公司、学术研究人员和数据管理人员的需求，我们开展了一项调查，并组织了一个专家小组，以确定佛罗里达州沿海和海洋数据的使用和分布现状。通过调查，我们要求参与者描述他们使用或收集的数据类型、他们如何使用这些数据、他们在数据共享方面遇到的限制、他们共享数据的方式和时间，以及他们在工作中使用的元数据标准类型。我们发现，许多数据生产者和使用者并不了解数据标准，而且往往不遵循数据收集和共享的最佳管理实践。受访者的活动部门（政府、学术界、非营利组织）决定了数据用户如何与数据互动或收集数据，以及他们在共享数据时遵循哪些标准。我们的专家小组在很大程度上赞同我们的结论，即一致、有据可查和标准化的数据集是项目数据整合的最重要组成部分。为了提高底栖生物数据的可访问性和可重用性，我们的项目强调需要对利益相关者进行更多有关数据标准化、协作和整合的培训，这些培训需要在各机构间进行。已确定的一个主要需求是使数据共享和元数据创建更容易、更高效的工具。

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引用次数: 0

Study of tropical cyclone wave characteristics based on a hybrid track clustering method 基于混合轨迹聚类法的热带气旋波浪特征研究

IF 4.8 2区环境科学与生态学 Q1 OCEANOGRAPHY

Ocean & Coastal Management

Pub Date : 2024-10-21 DOI: 10.1016/j.ocecoaman.2024.107448

Jiaqian Li , Zhuxiao Shao , Bingchen Liang , Huijun Gao

Understanding the activity and wave characteristics of different TC track types with different formation mechanisms is crucial for coastal and ocean engineering. In this study, a hybrid clustering method based on track indicators representing track shape and influence region is proposed to classify 721 TC tracks along the coast of China into three track types. Due to the intrinsic similarity of track indicators diagnosed by the self-organizing map method, the initial clustering centroid selection of K-means method is reasonable. 5000 clustering trials show that the clustering results are more robust than those of the traditional K-means method, and the average difference percentage decreases from 11.3% to 5.5%. By analyzing the robust clustering results, the activity characteristics of three TC types under the background of atmospheric circulation patterns and the characteristics of the waves generated by the three TC types are studied, especially the characteristics of extreme waves. The joint distribution pattern of extreme wave height and wave direction indicates the direction sector shift and frequency change caused by different TC types. These results provide important insights for risk analysis and resilience construction of coastal and ocean engineering structures.

了解具有不同形成机制的不同 TC 轨道类型的活动和波浪特征对海岸和海洋工程至关重要。本研究提出了一种基于代表轨迹形状和影响区域的轨迹指标的混合聚类方法，将中国沿海的 721 条热带气旋轨迹划分为三种轨迹类型。由于自组织图法诊断出的航迹指标具有内在相似性，因此 K-means 法的初始聚类中心点选择是合理的。5000 次聚类试验表明，聚类结果比传统的 K-means 方法更稳健，平均差异百分比从 11.3%下降到 5.5%。通过分析鲁棒聚类结果，研究了大气环流模式背景下三种热带气旋的活动特征以及三种热带气旋产生的波浪特征，尤其是极端波浪的特征。极端波高和波向的联合分布模式表明了不同 TC 类型引起的方向扇形移动和频率变化。这些结果为海岸和海洋工程结构的风险分析和抗灾建设提供了重要启示。

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