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  • Other Sources  (77)
  • EuroSea  (61)
  • American Chemical Society (ACS)
  • Geozon Science Media
  • Nature Publishing Group (NPG)
  • Oxford Univ. Press
  • 2020-2024  (77)
  • 1
    Publication Date: 2023-02-08
    Description: Many coastal oceans experience not only increased loads of nutrients but also changes in the stoichiometry of nutrient supply. Excess supply of nitrogen and stable or decreased supply of silicon lower silicon to nitrogen (Si:N) ratios, which may decrease diatom proportion in phytoplankton. To examine how Si:N ratios affect plankton community composition and food web structure, we performed a mesocosm experiment where we manipulated Si:N ratios and copepod abundance in a Baltic Sea plankton community. In high Si:N treatments, diatoms dominated. Some of them were likely spared from grazing unexpectedly resulting in higher diatom biomass under high copepod grazing. With declining Si:N ratios, dinoflagellates became more abundant under low and picoplankton under high copepod grazing. This altered plankton food web structure: under high Si:N ratios, edible diatoms were directly accessible food for copepods, while under low Si:N ratios, microzooplankton and phago-mixotrophs (mixoplankton) were a more important food source for mesograzers. The response of copepods to changes in the phytoplankton community was complex and copepod density-dependent. We suggest that declining Si:N ratios favor microzoo- and mixoplankton leading to increased complexity of planktonic food webs. Consequences on higher trophic levels will, however, likely be moderated by edibility, nutritional value or toxicity of dominant phytoplankton species.
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  • 2
    Publication Date: 2023-02-08
    Description: Quantification and attribution of the food web changes associated with the invasion of non-indigenous species in the marine realm often remain a challenge. One of the pelagic non-indigenous species of concern in the recent history of aquatic bioinvasions is the predatory cladoceran Cercopagis pengoi, which invaded the Baltic Sea in the early 1990s. While several studies have reported immediate declines in abundances of its potential prey, the long-term effects of C. pengoi on the food webs remain to be examined. Based on the long-term time series (1968–2018) in the Gulf of Riga (Baltic Sea), we found significant declines in abundance of the cladoceran Pleopis spp. and copepod Eurytemora affinis by 90 and 80%, respectively, are associated with the invasion of C. pengoi as well as significant alterations in seasonal abundance patterns of Pleopis spp., E. affinis and cladoceran Bosmina spp. The invasion of the non-indigenous predator has led to the changed prey abundance–temperature relationships. Special caution was taken in data preprocessing, to minimize the likelihood that observed changes in the zooplankton prey could be associated with factors other than the invasion of C. pengoi, such as temperature and storminess.
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  • 3
    Publication Date: 2023-02-08
    Description: The copepod Acartia tonsa is a key component of a wide range of marine ecosystems, linking energy transfer from phytoplankton to higher trophic levels, and has a central role in productivity and biogeochemistry. The interaction of end-of-century global warming and ocean acidification scenarios with testing moderate temperature effects on a seminatural copepod community is needed to understand future community functioning. Here, we deployed a mesocosm experimental set-up with a full factorial design using two temperatures (13°C and 19°C) crossed with a pCO2 gradient ranging from ambient (550 μatm) to 3000 μatm. We used the natural bacteria, phyto- and microzooplankton species composition and biomass of the Kiel Bight and tested the response of A. tonsa development, carbon growth, mortality, size and condition. The tested traits were differently affected by the interaction of temperature and acidification. Ocean acidification increased development, carbon growth, size and mortality under the warming scenario of 19°C. At 13°C mortality rates decreased, while carbon growth, size and condition increased with acidification. We conclude from our experimental approach that a single species shows a variety of responses depending on the focal functional trait. Trait-specific mesozooplankton responses need to be further investigated and compared between geographical regions, seasons and taxonomic groups.
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  • 4
    Publication Date: 2023-02-08
    Description: Dinoflagellates possess many cellular characteristics with unresolved evolutionary histories. These include nuclei with greatly expanded genomes and chromatin packaged using histone-like proteins and dinoflagellate-viral nucleoproteins instead of histones, highly reduced mitochondrial genomes with extensive RNA editing, a mix of photosynthetic and cryptic secondary plastids, and tertiary plastids. Resolving the evolutionary origin of these traits requires understanding their ancestral states and early intermediates. Several early-branching dinoflagellate lineages are good candidates for such reconstruction, however these cells tend to be delicate and environmentally sparse, complicating such analyses. Here, we employ transcriptome sequencing from manually isolated and microscopically documented cells to resolve the placement of two cells of one such genus, Abedinium, collected by remotely operated vehicle in deep waters off the coast of Monterey Bay, CA. One cell corresponds to the only described species, Abedinium dasypus, whereas the second cell is distinct and formally described as Abedinium folium, sp. nov. Abedinium has classically been assigned to the early-branching dinoflagellate subgroup Noctilucales, which is weakly supported by phylogenetic analyses of small subunit ribosomal RNA, the single characterized gene from any member of the order. However, an analysis based on 221 proteins from the transcriptome places Abedinium as a distinct lineage, separate from and basal to Noctilucales and the rest of the core dinoflagellates. The transcriptome also contains evidence of a cryptic plastid functioning in the biosynthesis of isoprenoids, iron–sulfur clusters, and heme, a mitochondrial genome with all three expected protein-coding genes (cob, cox1, and cox3), and the presence of some but not all dinoflagellate-specific chromatin packaging proteins.
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  • 5
    Publication Date: 2023-02-08
    Description: The Law of the Sea as well as regional and national laws and agreements require exploited populations or stocks to be managed so that they can produce maximum sustainable yields. However, exploitation level and stock status are unknown for most stocks because the data required for full stock assessments are missing. This study presents a new method (AMSY) that estimates relative population size when no catch data are available using time-series of catch-per-unit-effort or other relative abundance indices as the main input. AMSY predictions for relative stock size were not significantly different from the “true” values when compared with simulated data. Also, they were not significantly different from relative stock size estimated by data-rich models in 88% of the comparisons within 140 real stocks. Application of AMSY to 38 data-poor stocks showed the suitability of the method and led to the first assessments for 23 species. Given the lack of catch data as input, AMSY estimates of exploitation come with wide margins of uncertainty which may not be suitable for management. However, AMSY seems to be well suited for estimating productivity as well as relative stock size and may, therefore, aid in the management of data-poor stocks.
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  • 6
    Publication Date: 2023-09-07
    Description: Implementation of pH sensor on Eulerian observations in the Mediterranean Sea (DYFAMED site)
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 7
    Publication Date: 2023-09-07
    Description: Design of numerical experiments assimilating in situ physical and BGC observations to assess and enhance their impact in CMEMS ocean monitoring and forecasting systems.
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  • 8
    Publication Date: 2023-09-07
    Description: This document describes the numerical modelling work done in task 5.2 needed to implement OSPAC
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  • 9
    Publication Date: 2023-09-07
    Description: Investigations and preparation of glider observations to be assimilated in MED-MFC and WMOP systems.
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  • 10
    Publication Date: 2023-09-07
    Description: Derive the user-relevant indicators defined in Milestone MS7 from the ensemble of ECMWF and CMCC seasonal forecasts systems contributing to C3S
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  • 11
    Publication Date: 2023-09-07
    Description: Framework of the envisioned time-series synthesis product used to indicate the consistency of biogeochemical time-series data (in-)between different ship-based sites.
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  • 12
    Publication Date: 2023-09-07
    Description: This document describes the numerical modelling work done in task 5.2 needed to implement OSPAC
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  • 13
    Publication Date: 2023-09-07
    Description: This document describes the numerical modelling work for waves done in wp5.2. needed to implement OSPAC
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  • 14
    Publication Date: 2023-09-07
    Description: This report includes the description and the manuals (both at User and Administrator level) for the OSPAC service and its applications
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  • 15
    Publication Date: 2023-09-07
    Description: Assess the seasonal forecast skill of selected ocean variables - SST, OHC300m, and SSH - from the ensemble of ECMWF and CMCC seasonal forecasts systems contributing to C3S
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  • 16
    Publication Date: 2023-09-07
    Description: Report on ASV-Network structure and roadmap Revised edition
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  • 17
    Publication Date: 2023-09-07
    Description: Identification of local and regional impacts of oxygen, heat and pH related “Extreme Marine Events”: Ocean model data products are overlaid with existing marine biological datasets to identify sensitive areas and organism vulnerabilities.
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  • 18
    Publication Date: 2023-09-07
    Description: This report includes recommendations for the planification of in situ experiments aimed to reconstruct fine-scale ocean currents (~20 km), such as those that will be conducted to validate SWOT satellite observations.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 19
    Publication Date: 2023-09-08
    Description: This deliverable is intended to give an overview of the EuroSea actions at the interface between science and policy, ensuring the EuroSea results are useful for policy and decision-makers both at the EU, regional, and national levels.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 20
    Publication Date: 2023-09-08
    Description: The 4th Evolving and Sustaining Ocean Best Practices Workshop was held online during the period 17-30 September 2020, addressing community needs for advanced method development and implementation in ocean observations, data management and application. The proceedings for the subject workshop are provided in 2 volumes. Volume 1 addresses the meeting overview, and Volume 2 - Annexes includes the complete Working Group reports.
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  • 21
    Publication Date: 2023-09-12
    Description: This report provides a description of the different tools developed for tackling key issues of the High Frequency Radar (HFR) community: advanced delayed time QC of HFR historical data, implementation of Best Practices, enhancing the application of HFR observations in NRT modelling assessment and Ocean State indicators
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  • 22
    Publication Date: 2023-09-12
    Description: Report on European glider network coordination (Best Practices, OceanGliders, metadata and data management
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  • 23
    Publication Date: 2023-09-12
    Description: Best practices for eulerian observatories
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  • 24
    Publication Date: 2023-09-12
    Description: The purpose of this deliverable is to describe and highlight specificities of the observing networks involved in Eurosea and to display a list of main data management points done at European level in comparison to what exists at international level.
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  • 25
    Publication Date: 2023-09-12
    Description: Euro-Argo strategy in the context of the OneArgo new international design
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  • 26
    Publication Date: 2023-09-12
    Description: This report provides recommendations to foster collaboration and cooperation between technologies and disciplines and for implementing truly integrated ocean observing systems. Based on an intensive literature review and a careful examination of different examples of integration in different fields, this work identifies the issues and barriers that must be addressed, and proposes a vision for a real implementation of this ocean integration ambition. This work is a contribution to the implementation of EOOS, a much-needed step forward in Europe, following the international guidance of GOOS.
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  • 27
    Publication Date: 2023-09-11
    Description: Harmonisation data management procedures and implementing FAIR principles with the target to serve the data infrastructures: Copernicus Marine Service and EMODnet (first stage) as well as SeaDataNet and historical National Oceanographic Data Centres (later stage)
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  • 28
    Publication Date: 2023-09-11
    Description: Several legal frameworks exist that are important for states conducting ocean observing activities or for which it would be relevant to include the necessity of ocean observing activities and development of ocean information products. Existing hard and soft law frameworks and mechanisms will be analysed to enable adequate adaptation of ocean observing system design at a regional and global level, with a focus on supporting sustained ocean observing and fit-for-purpose ocean information products.
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  • 29
    Publication Date: 2023-09-11
    Description: This deliverable reports on the achievements of the EuroSea project in developing targeted indicators co-designed with demonstrators (WPs 5–7) and forecasts (WP4). For this, the indicators implemented are expressed in term of Essential Ocean/Climate Variables (EOVs/ECVs) together with their requirements. The co-development undertaken address ocean indicators for all range of scales: from the large, basin scale to the regional and local scales. Such approach as well as the proposed solution to focus, at regional/local scales, on EEZs, represent one of the innovative results of EuroSea that will help to rationalize risks assessments and guide environmental management approaches in European Seas.
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  • 30
    Publication Date: 2023-09-09
    Description: This deliverable is intended to give an overview of the EuroSea actions at the interface between science and policy, ensuring the EuroSea results are useful for policy and decision-makers both at the EU, regional, and national levels.
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  • 31
    Publication Date: 2023-11-28
    Description: EuroSea brought together key European actors of ocean observation and forecasting with key end users of the ocean observations’ products and services to better integrate existing ocean observation systems and tools, and to bring the coordination to a higher level. The EuroSea WP1 “Governance and coordination of ocean observing and forecasting systems”, in particular, aimed to strengthen the interactions between regional, national, and international observing systems and support the development of a European coordinated system through the Framework of the European Ocean Observing System (EOOS). During the project, the challenges and gaps in the design and coordination of the European ocean observing and forecasting system were identified and mapped. Many gaps and challenges related to the observations of physical, chemical and biological Essential Ocean Variables were identified. Some of these gaps are related to technological advancements, while others are caused by insufficient funding, coordination, management, and cooperation between different entities, as well as limitations in foresight activities, policies and decisions. To enhance the sustainability of European ocean observations, several recommendations were compiled for networks, frameworks, initiatives, Member States, and the European Commission.
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  • 32
    Publication Date: 2023-11-23
    Description: The European Ocean Observing and Forecasting System (EOOFS) plays a pivotal role in understanding, monitoring, forecasting, and managing the complex dynamics and resources of Europe's Seas. It serves as a critical interdisciplinary system for addressing a myriad of challenges, from climate change impacts to marine resources management. However, to ensure its continued effectiveness, it is essential to identify and address the gaps within this system and provide actionable recommendations for improvements at short- and long-term. Therefore, this document serves as a baseline that can guide the funders and supporters of the EOOFS, as well as the various stakeholders directly or indirectly related to the EOOFS, towards the gaps that hinder better monitoring and prediction of various ocean phenomena, along the ocean observing value chain. The main identified gaps are related to spatial and temporal coverage of data and products of the EOOFS, the data integration and accessibility by various types of users, the uncertainties of projections, the technological challenges, as well as to the engagement of various actors and the communication of results and services to them. The main recommendations to be taken into consideration for addressing all highlighted gaps are detailed in the report for every phenomenon and component of the ocean value chain. These recommendations are not provided just to satisfy the academic interest of the EOOFS community, however, they may have profound implications for multiple sectors and the society as a whole, if taken into consideration. This is due to the fact that the EOOFS is essential for climate change mitigation and adaptation measures, in improving the efficiency of the marine resources’ management, in enhancing the resilience of marine and coastal ecosystems as well as coastal cities and infrastructures against disasters and extreme events, for shipping and navigation safety, and for the scientific advancements and innovations of Europe in the field of marine science that serves the society. We propose a scoring approach that can evaluate the EOOFS readiness level (RL) in monitoring ocean phenomena, on a regular basis and in a systematic way. We have demonstrated the usefulness of this approach by implementing it based on our assessment and the feedback of the EOOFS community. The main results clearly show that the EOOFS has “Fitness for Purpose” readiness levels (RL 7) in the three main pillars of the value chain (Input, Process, and Output) only for one ocean phenomenon, while 83% of ocean phenomena have RLs varying from 1 (Idea) to 4 (Trial). A deeper analysis of the scoring results reflects that the EOOFS major gaps are predominantly concentrated in two of its three pillars: the coordination and observational elements (Process) and data management and information products (Output) (Figure 1). In a changing world that is affecting all aspects of European lives, it is crucial to significantly invest and support the EOOFS to better monitor and accurately predict the European Seas, and provide sustained services that can help businesses and improve the resilience of communities and resources.
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  • 33
    Publication Date: 2024-01-16
    Description: This report “Real-time data to central server with display to stakeholders” describes the deployment of two monitoring stations at the aquaculture facilities at Deenish Island (Ireland) and El Campello (Spain), and how the real-time data is distributed to the different stakeholders in the aquaculture industry and the scientific community. The document is structured as follows. First, the background information is presented in the ‘Introduction’. Then, the equipment deployed at Deenish Island and El Campello is described in the ‘Ocean Demonstrator Deployments’ section. Finally, the different ways in which the real-time data is delivered to the stakeholders are presented in the last section ‘Data Delivery to Server’.
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  • 34
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    EuroSea
    Publication Date: 2024-01-16
    Description: The EuroSea project was constructed around the ocean observing value chain. Just as intended, the value chain concept is a useful prism for designing the ocean observing and forecasting system, or, indeed, a project like EuroSea that set out to improve just this system. Indeed, several projects in the past have successfully used the value chain for this purpose, for example the AtlantOS EU-funded project or the TPOS 2020 project. In this report we summarize some of the main take home messages from EuroSea on the technical innovation and data management needs for the European Ocean Observing and Forecasting System. This report does not set out to summarize EuroSea outputs or impacts, but rather look forward on what we still have to accomplish. We do so, using the prism of the ocean observing value chain, and articulate needs in the areas of governance and coordination, design, network integration and, finally, data integration, assimilation and forecasting. This report is not a detailed list of immediate needs and next steps, but rather a compilation of the broader technical needs for the observing and forecasting system and is meant as a broad guide to the community and possibly to funders of a possible path forward.
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  • 35
    Publication Date: 2024-01-16
    Description: This report focuses on encouraging usage of Copernicus Marine Service products by fisheries users and scientists, and consists of a number of key studies where numerous EuroSea activities support the uptakes of Copernicus Marine Service data products, focusing on Atlantic mackerel, European hake and Atlantic tuna. The report also contains an intercomparison study focused on oceanographic equipment (CTD) to determine the most suitable sensor for a fisheries observing system. A number of recommendations are provided on how to support the use of Copernicus Marine Service products in fisheries science, such as the production of new Best Practices, stronger partnerships (fisheries scientists and oceanographers) and co-development of ocean indicators.
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  • 36
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    EuroSea
    Publication Date: 2024-01-16
    Description: The EuroSea project has been running for 4 years by the writing of this report, and this report covers months 33-48 of the action at a time when most tasks are completed and deliverables submitted. However, a few items still need to be finalized as we have experienced delays for a few items, mostly due to COVID, or Brexit, but we expect all of those to be solved before the end of the project by the end of 2023. The progress of the WPs is summarized below, and is described in more detail in the main part of this report. As an innovation action, EuroSea is keeping a close eye on creating impact and on creating services and products that will last past the lifetime of the project. Therefore, we would like to emphasis the registry of impacts that is published on the EuroSea website1. These about 100 areas illustrate the impact that EuroSea has had on improving the European ocean observing and forecasting system. EuroSea has produced a number of targeted services and products for ocean health, operational services and climate, that are tested and used by the stakeholders.
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  • 37
    Publication Date: 2024-01-18
    Description: This deliverable outlines the sustainability and business plan of the Key Exploitable Result (KER) identified in WP6 with the most potential for commercialisation. The report includes a summary of the KER Solution for marine sensors to measure and forecast oxygen, heat and pH related Extreme Marine Events onsite for aquaculture – monitoring system for extreme marine events at aquaculture sites (WP6), a market analysis in terms of the market size and value, target market, competition, market needs that are being addressed as a result of the co-development process. Information is provided on agreements arranged to continue the service in the demonstrator post project with the creation of MOUs between industry partners and a service level agreement with the cloud provider EGI foundation. The report reviews the size of the markets for the KER, the viable commercial plan and the investment sources to be pursued to further develop the results.
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  • 38
    Publication Date: 2024-01-17
    Description: The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort that provides high-quality, quality-controlled ocean biogeochemical bottle data with annual-updates, playing a crucial role in advancing our understanding of the Earth's oceans and their complex biogeochemical processes. This deliverable covers the GLODAP annual updates under the EuroSea funding, as well as the automatization of the quality control process of the data. Under the EuroSea funding, GLODAP has received three updates (GLODAPv2.2020, GLODAPv2.2021 and GLODAPv2.2022) with a total number of 245 cruises added, and in addition, a new version release (GLODAPv3) is planned. These updates were possible as a result of the large degree of automatization of the quality control process that ensures the accuracy of the data. The core of the quality control process is the crossover analysis that is currently performed via the 2nd QC Matlab toolbox from Lauvset and Tanhua (2015). However, following Eurosea’s vision of a user-focused, truly interdisciplinary, and responsive European ocean observing and forecasting system, this deliverable aims to migrate from the Matlab toolbox to an online web application based on the open-source software Django and Python. This will allow the user to simply upload the data file to be quality controlled and the web application performs the secondary quality control through the deep water crossover analysis just as in Matlab, and offers similar graphics for visualization. Because the crossover analysis is partially automated on this online tool, the users do not need to possess any programming knowledge in order to quality control their data. In addition, this online tool can be part of a fully automated GLODAP quality control process, without need for manual intervention.
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  • 39
    Publication Date: 2024-01-17
    Description: The aim of the WP3 “Network Integration and Improvements” is to coordinate and enhance key aspects of integration of European observing technology (and related data flows) for its use in the context of international ocean monitoring activities. One of the dimensions of the integrations is the constitution of thematic networks, that is, networks whose aim is to address specific observational challenges and thus to favor innovation, innovation that will ultimately support the Blue economy. In this context, the specific aim of Task 3.8 is to accelerate the adoption of molecular methods such as genomic, transcriptomic (and related “omics”) approaches, currently used as monitoring tools in human health, to the assessment of the state and change of marine ecosystems. It was designed to favor the increase the capacity to evaluate biological diversity and the organismal metabolic states in different environmental conditions by the development of “augmented observatories”, utilizing state-of-art methodologies in genomic-enabled research at multidisciplinary observatories at well-established marine LTERs, with main focus on a mature oceanographic observatory in Naples, NEREA. In addition, an effort is dedicated to connecting existing observatories that intend to augment their observations with molecular tools. Molecular approaches come with many different options for the protocols (size fractioning, sample collection and storage, sequencing etc). One main challenge in systematically implementing those approaches is thus their standardization across observatories. Based on a survey of existing methods and on a 3-year experience in collecting, sequencing and analyzing molecular data, this deliverable is thus dedicated to present the SOPs implemented and tested at NEREA. The SOPs consider a size fractioning of the biological material to avoid biases toward more abundant, smaller organisms such as bacteria. They cover both the highly stable DNA and the less stable RNA and they are essentially an evolution of the ones developed for the highly successful Tara Oceans Expedition and recently updated for the Expedition Mission Microbiomes, an All-Atlantic expedition organised and executed by the EU AtlantECO project. Importantly, they have only slight variations with respect the ones adopted by the network of genomic observatories EMOBON. Discussions are ongoing with EMOBON to perfectly align the protocols. The SOPs are being disseminated via the main national and international networks.
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  • 40
    Publication Date: 2024-01-17
    Description: The purpose of this report is to provide a compilation of the communication and dissemination activities in EuroSea. It also proposes, as a guide, some guidelines and considerations to be included in the Communication and Dissemination Strategy in European projects. Dissemination and communication activities are essential for the success of the European Union’s Horizon 2020 research and innovation Programme, and the EuroSea project is no exception. The project has focused on improving ocean observing and forecasting for a sustainable ocean, and effective communication has been a crucial element in bringing together the interest groups, ensuring all stakeholders are to work towards the common goal of sustainable, science-based ocean management, as well as promoting and fostering public understanding of the importance and value of the ocean and its crucial role in climate change. This document offers a summary of the consortium's activities carried out during the whole life of the project (November 2019 - October 2023) related to all EuroSea communication and dissemination tools (official website, social media, newsletter, press release), as well as materials generated for the project (visual identity, printed and audiovisual materials) and the events-based dissemination. Key considerations in planning and strategy include defining project objectives, identifying target audiences, crafting effective messages, and selecting appropriate communication channels and tools. Evaluation and adjustment are also vital to measure the effectiveness of communication and dissemination activities. Overall, this guide could serve as a resource for any team involved in communication and dissemination activities in projects from Horizon 2020. This information will be instrumental in enhancing future efforts, maximizing the impact of the activities and ensuring the success of the project.
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  • 41
    Publication Date: 2024-01-17
    Description: Analysis of global numerical experiments with physical and BGC forecasting model to estimate the impact of new observing system design.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 42
    Publication Date: 2024-01-17
    Description: While originally developed for weather forecasting, the Extreme Forecast index (EFI) concept has found utility in diverse fields. This study marks the inaugural application of EFI principles to numerical ocean forecasting. EFI offers a metric to gauge the forecast's deviation from historical norms specific to the location and time of year. A heightened EFI value signifies that the forecast falls beyond the usual range of variability, signifying a higher probability of extreme conditions. This novel use of EFI stands to benefit oceanographers by identifying significant oceanic events, aiding decision-making, and supporting early warning systems, particularly for extreme marine conditions. It enhances comprehension of forecast uncertainties and facilitates clearer communication of potential risks to the public and stakeholders. Such insights are invaluable for preparedness, coastal management, and mitigating the impact of marine extremes on communities and ecosystems. EFI indices for the Mediterranean Sea are computed using a first implementation of a forecast ensemble system that is being developed for the Mediterranean Sea Monitoring and Forecasting Center of the Copernicus Marine Environment Service. This deliverable report presents the first-ever application of the EFI approach to the Mediterranean Sea. After presenting the EFI definition adopted in this study, we discuss its application to sea surface temperature (SST) and sea surface height (SSH) extremes. A case studies using ensemble forecasts for the year 2021 are presented and discussed.
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  • 43
    Publication Date: 2024-01-23
    Description: The report analyses the interactions between the public and private organisations involved in the project activities as members of the project consortium, internal advisory boards and stakeholders. This strong, collaborative and interdisciplinary collaboration between public and private sectors is essential to improve ocean observing and forecasting systems with innovative technological solutions also in support of the implementation process of important global strategies related to the ocean.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 44
    Publication Date: 2024-01-23
    Description: This report provides an overview of EuroSea's initiatives focused on engaging the next generation of ocean observing and forecasting stakeholders. Many activities took place, including delivering workshops, presenting the EuroSea itinerant exhibition, collaborating with the WASCAL Floating University and the SEA-EU inter-university initiative, supporting the international Ocean Observers Initiative, and much more. Engaging the next generation of stakeholders in meaningful discussions and innovative projects is essential to ensure future-oriented intergenerational collaboration. Yet, this is often an overlooked aspect of public engagement within the Horizon 2020 landscape as it requires engagement techniques specifically tailored to reach the young generation. Within the framework of Horizon 2020, the European Union's research and innovation funding program, public engagement traditionally targets a diverse range of stakeholders, including researchers, policymakers, industry representatives, civil society organizations, NGOs, and citizens. While these efforts are crucial for fostering inclusive and transparent dialogue, targeted initiatives directed towards the younger generation and early-career ocean professionals need to be expanded. It is important to recognize the concerns, unique perspectives, and aspirations of young individuals who will inherit the outcomes of today's research and innovation. Dedicating resources to engage with the next generation is vital to ensure their active involvement in shaping their future and addressing global challenges such as the sustainability of ocean observing, monitoring, and forecasting. EuroSea has recognized the importance of fostering a deeper understanding of ocean observing and forecasting among the younger generation. This deliverable and the many activities feeding into it are a testament to EuroSea's commitment to this cause. This report focuses on the lessons learnt from a diverse array of activities engaging the next generation of ocean observing and forecasting stakeholders, demonstrating the extensive range of possibilities for involving the younger generation. It underscores the importance of tailoring approaches to different age groups, from school children to university graduates and adapting engagement strategies to their varying interests and life stages. Every experience—even the ones that did not turn out as expected—has shown to be beneficial, and it is important to share lessons learnt and identify best practices while expanding these kinds of initiatives. EuroSea's dedication to engaging the next generation of stakeholders is a significant step in fostering inter-generational dialogue and promoting blue skills and knowledge sharing. Valuable lessons have been learnt from the EuroSea engagement activities and provide guidance for future initiatives aimed at fostering a deeper understanding of our ocean among the younger generation and engaging them in conversations that impact their future on this planet.
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  • 45
    Publication Date: 2024-01-23
    Description: EuroSea is a holistic large-scale project encompassing the full value chain of marine knowledge, from observations to modelling and forecasting and to user-focused services. This report summarizes the legacy of EuroSea as planned and measured through a dedicated impact monitoring protocol, a holistic assessment of the project's successes in advancing and integrating European ocean observing and forecasting systems. Since its start, EuroSea has been analysing how well the project progresses towards the identified areas of impact. Impact assessment is not performance evaluation. These terms overlap but are distinct: performance relates to the efficient use of resources; impact relates to the transformative effect on the users. The EuroSea legacy report is presented through an aggregation and analysis of the EuroSea work towards achieving its impacts. Overall, over 100 impacts have been identified and presented on the website and in a stand-alone impact report. The legacy report sheds light on 32 most powerful impacts (four impacts in each of the eight EuroSea impact areas). EuroSea Impact Areas: 1. Strengthen the European Ocean Observing System (EOOS), support the Global Ocean Observing System (GOOS) and the GOOS Regional Alliances; 2. Increase ocean data sharing and integration; 3. Deliver improved climate change predictions; 4. Build capacity, internally in EuroSea and externally with EuroSea users, in a range of key areas; 5. Develop innovations, including exploitation of novel ideas or concepts; shorten the time span between research and innovation and foster economic value in the blue economy; 6. Facilitate methodologies, best practices, and knowledge transfer in ocean observing and forecasting; 7. Contribute to policy making in research, innovation, and technology; 8. Raise awareness of the need for a fit for purpose, sustained, observing and forecasting system in Europe. Ocean observing and forecasting is a complex activity brining about a variety of technologies, human expertise, in water and remote sensing measurements, high-volume computing and artificial intelligence, and a high degree of governance and coordination. Determining an impact on a user type or an area, therefore, requires a holistic assessment and a clear strategic overview. The EuroSea impact monitoring protocol has been the first known such attempt in a European ocean observing and forecasting project. The project’s progress has been followed according to the identified impact areas, through consortium workshops, stakeholder webinars, tracking, and reporting. At the end of EuroSea, we are able to demonstrate how well we have responded to the European policy drivers set out in the funding call and the grant agreement of our project, signed between the European Commission and 53 organizations, members of the EuroSea consortium. The project's impact is diverse, spanning areas from strengthening ocean observing governance to contributing to policymaking or boosting ocean research, innovation, and technology. Each impact area underscores EuroSea's commitment to a sustainable and informed approach to ocean observing and forecasting for enhanced marine knowledge and science-based sustainable blue economy and policies.
    Type: Report , NonPeerReviewed
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  • 46
    Publication Date: 2024-02-07
    Description: Diatoms often dominate phytoplankton in temperate, polar and upwelling regions. Decreases in silicate availability or silicon to nitrogen (Si:N) ratios may induce silicon limitation in diatoms and lower their proportion within phytoplankton communities. The effects of such changes on the nutritional quality of phytoplankton are not well understood. To examine how changing Si:N ratios affect plankton nutritional value, we applied a range of Si:N ratios on a natural plankton community and manipulated grazing pressure to assess top-down effects of copepod selective grazing. Diatom proportion in phytoplankton increased with increasing Si:N ratios and so did phytoplankton nutritional quality in terms of major fatty acid concentrations, such as polyunsaturated fatty acids, docosahexaenoic (DHA) and eicosapentaenoic (EPA) acids. However, stoichiometric quality (carbon to nitrogen and carbon to phosphorus ratios), DHA:EPA and omega 3:6 (omega 3:omega 6) ratios declined with increasing Si:N ratios, suggesting that proportions between essential compounds in copepod diet may be more favorable in lowered Si:N ratios. Copepods had a negative effect on DHA contents, DHA:EPA and omega 3:omega 6 ratios, indicating possible selective grazing on more nutritious plankton. Our findings show that declining silicate concentrations can affect stoichiometric and biochemical quality of phytoplankton, which copepods can also moderate by selective grazing.
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  • 47
    Publication Date: 2024-02-07
    Description: Temperature and dehydration stress are two major co-occurring environmental stressors threatening the physiology, biochemistry, and ecology of insects. As such, understanding adaptive responses to desiccation stress is critical for predicting climate change impacts, particularly its influence on insect invasions. Here, we assessed water balance and desiccation resistance of the invasive Tuta absoluta (Meyrick, 1917) (Lepidoptera: Gelechiidae), and infer how eco-physiology shapes its niche. We measured basal body water and lipid content, water loss rates (WLRs), and desiccation resistance in larvae (second to fourth instars) and adults. Body -water, -lipid, and WLRs significantly varied across life stages. Second instars recorded the lowest while fourth instars exhibited the highest body water and lipid content. Adult body water and lipid content were higher than second and third instars and lower than fourth instars while proportion of body water and lipid contents were highest in adults and second larval instars respectively. Water loss rates were significantly highest in fourth-instar larvae compared to other life stages, but differences among stages were less apparent at longer exposure durations (48 h). Desiccation resistance assays showed that second instars had greatest mortality while fourth-instar larvae and adults were the most desiccation tolerant. Our results show that T. absoluta fourth-instar larvae and adults are the most resilient developmental stages and potentially contribute most to the invasion success of the pest in arid environments. Incorporation of these species-specific eco-physiological traits in predictive models can help refine invasive species potential spread under changing climates.
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  • 48
    Publication Date: 2024-02-07
    Description: The fishery for Northern Atlantic cod (Gadus morhua) off Newfoundland and Labrador, Eastern Canada, presents the most spectacular case of an exploited stock crashed in a few decades by an industrial bottom trawl fishery under a seemingly sophisticated management regime after half a millennium of sustainable fishing. The fishery, which had generated annual catches of 100000 to 200000 tonnes from the beginning of the 16th century to the 1950s, peaked in 1968 at 810000 tonnes, followed by a devastating collapse and closure 24 years later. Since then, stock recovery may have been hindered by premature openings, with vessels targeting the remains of the cod population. Previous research paid little attention towards using multicentury time series to inform sustainable catches and recovery plans. Here, we show that a simple stock assessment model can be used to model the cod population trajectory for the entire period from 1508 to 2019 for which catch estimates are available. The model suggests that if fishing effort and mortality had been stabilized in the 1980s, precautionary annual yields of about 200000 tonnes could have been sustained. Our analysis demonstrates the value of incorporating prior knowledge to counteract shifting baseline effects on reference points and contemporary perceptions of historical stock status.
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  • 49
    Publication Date: 2024-02-07
    Description: Eutrophication-driven harmful algal blooms (HABs) can have secondary effects on larval fishes that rely on estuaries as nurseries. However, few studies worldwide have quantified these effects despite the global rise in eutrophication. This study presents a novel approach using biochemical body condition analyses to evaluate the impact of HABs on the growth and body condition of the larvae of an estuarine resident fish. Recurrent phytoplankton blooms of Heterosigma akashiwo occur in the warm-temperate Sundays Estuary on the southeast coast of South Africa. The response in body condition and assemblage structure on larval estuarine roundherring (Gilchristella aestuaria) was measured in conjunction with bloom conditions, water quality and zooplanktonic prey and predators. Larvae and early juveniles were sampled during varying intensity levels, duration and frequency of hypereutrophic blooms. This study demonstrated that extensive HABs could significantly impact larval roundherring, G. aestuaria, by decreasing larval nutritional condition and limiting their growth, resulting in poor grow-out into the juvenile phase. Poor condition and growth may likely affect recruitment success to adult populations, and since G. aestuaria is an important forage fish and zooplanktivore, poor recruitment will hold consequences for estuarine food webs.
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  • 50
    Publication Date: 2024-02-07
    Description: The freshwater sponge Ephydatia muelleri and its Chlorella-like algal partner is an emerging model for studying animal: algal endosymbiosis. The sponge host is a tractable laboratory organism, and the symbiotic algae are easily cultured. We took advantage of these traits to interrogate questions about mechanisms that govern the establishment of durable intracellular partnerships between hosts and symbionts in facultative symbioses. We modified a classical experimental approach to discern the phagocytotic mechanisms that might be co-opted to permit persistent infections, and identified genes differentially expressed in sponges early in the establishment of endosymbiosis. We exposed algal-free E. muelleri to live native algal symbionts and potential food items (bacteria and native heat-killed algae), and performed RNA-Seq to compare patterns of gene expression among treatments. We found a relatively small but interesting suite of genes that are differentially expressed in the host exposed to live algal symbionts, and a larger number of genes triggered by host exposure to heat-killed algae. The upregulated genes in sponges exposed to live algal symbionts were mostly involved in endocytosis, ion transport, metabolic processes, vesicle-mediated transport, and oxidation–reduction. One of the host genes, an ATP-Binding Cassette transporter that is downregulated in response to live algal symbionts, was further evaluated for its possible role in the establishment of the symbiosis. We discuss the gene expression profiles associated with host responses to living algal cells in the context of conditions necessary for long-term residency within host cells by phototrophic symbionts as well as the genetic responses to sponge phagocytosis and immune-driven pathways.
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  • 51
    Publication Date: 2024-02-07
    Description: Marine sponges play a major ecological role in recycling resources on coral reef ecosystems. The cycling of resources may largely depend on the stability of the host-microbiome interactions and their susceptibility to altered environmental conditions. Given the current coral to algal phase shift on coral reefs, we investigated whether the sponge-associated bacterial communities of four sponge species, with either high or low microbial abundances (HMA and LMA), remain stable at two reefs sites with different coral to algae cover ratios. Additionally, we assessed the bacterial community composition of two of these sponge species before and after a reciprocal transplantation experiment between the sites. An overall stable bacterial community composition was maintained across the two sites in all sponge species, with a high degree of host-specificity. Furthermore, the core bacterial communities of the sponges remained stable also after a 21-day transplantation period, although a minor shift was observed in less abundant taxa (〈 1%). Our findings support the conclusion that host identity and HMA-LMA status are stronger traits in shaping bacterial community composition than habitat. Nevertheless, long-term microbial monitoring of sponges along with benthic biomass and water quality assessments are needed for identifying ecosystem tolerance ranges and tipping points in ongoing coral reef phase shifts.
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  • 52
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    Oxford Univ. Press
    Publication Date: 2024-02-07
    Description: The maximum sustainable yield (MSY) concept is widely considered to be outdated and misleading. In response, fisheries scientists have developed models that often diverge radically from the first operational version of the concept. We show that the original MSY concept was deeply rooted in ecology and that going back to that version would be beneficial for fisheries, not least because the various substitutes have not served us well.
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  • 53
    Publication Date: 2024-02-07
    Description: Strong anisotropy of seismic velocity in the Earth’scrust poses serious challenges for seismic imaging. Where in situ seismic properties are not available the anisotropy can be determined from velocity analysis of surface and borehole seismic profiles. This is well established for dense, long-offset reflection seismic data. However, it is unknown how applicable this approach is for sparse seismic reflection data with low fold and short offsets in anisotropic metamorphic rocks. Here we show that anisotropy parameters can be determined from a sparse 3D data set at the COSC-1 borehole site in the Swedish Caledonides and that the results agree well with the seismic anisotropy parameters determined from seismic laboratory measurements on core samples. Applying these anisotropy parameters during 3D seismic imaging improves the seismic image of the high amplitude reflections especially in the vicinity of the lower part of the borehole. Strong reflections in the resulting seismic data show good correlation with the borehole-derived lithology. Our results aid the interpretation and extrapolation of the seismic stratigraphy of the Lower Seve Nappe in Jämtland and other parts in the Caledonides.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
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  • 54
    Publication Date: 2024-02-07
    Description: Food webs are central entities mediating processes and external pressures in marine ecosystems. They are essential to understand and predict ecosystem dynamics and provision of ecosystem services. Paradoxically, utilization of food web knowledge in marine environmental conservation and resource management is limited. To better understand the use of knowledge and barriers to incorporation in management, we assess its application related to the management of eutrophication, chemical contamination, fish stocks, and non-indigenous species. We focus on the Baltic, a severely impacted, but also intensely studied and actively managed semi-enclosed sea. Our assessment shows food web processes playing a central role in all four areas, but application varies strongly, from formalized integration in management decisions, to support in selecting indicators and setting threshold values, to informal knowledge explaining ecosystem dynamics and management performance. Barriers for integration are complexity of involved ecological processes and that management frameworks are not designed to handle such information. We provide a categorization of the multi-faceted uses of food web knowledge and benefits of future incorporation in management, especially moving towards ecosystem-based approaches as guiding principle in present marine policies and directives. We close with perspectives on research needs to support this move considering global and regional change.
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  • 55
    Publication Date: 2024-02-07
    Description: The southern boundary of the Cayman Trough in the Caribbean is marked by the Swan Islands transform fault (SITF), which also represents the ocean-continent transition of the Honduras continental margin. This is one of the few places globally where a transform continental margin is currently active. The CAYSEIS experiment acquired an ∼165-km-long seismic refraction and gravity profile (P01) running across this transform margin, and along the ridge-axis of the Mid-Cayman Spreading Centre (MCSC) to the north. This profile reveals not only the crustal structure of an actively evolving transform continental margin, that juxtaposes Mesozoic-age continental crust to the south against zero-age ultraslow spread oceanic crust to the north, but also the nature of the crust and uppermost mantle beneath the ridge-transform intersection (RTI). The traveltimes of arrivals recorded by ocean-bottom seismographs (OBSs) deployed along-profile have been inverse and forward modelled, in combination with gravity modelling, to reveal an ∼25-km-thick continental crust that has been continuously thinned over a distance of ∼65 km to ∼10 km adjacent to the SITF, where it is juxtaposed against ∼3-4-km-thick oceanic crust. This thinning is primarily accommodated within the lower crust. Since Moho reflections are only sparsely observed, and, even then, only by a few OBSs located on the continental margin, the 7.5 km s-1 velocity contour is used as a proxy to locate the crust-mantle boundary along-profile. Along the MCSC, the crust-mantle boundary appears to be a transition zone, at least at the seismic wavelengths used for CAYSEIS data acquisition. Although the traveltime inversion only directly constrains the upper crust at the SITF, gravity modelling suggests that it is underlain by a higher density (〉3000 kg m-3) region spanning the width (∼15 km) of its bathymetric expression, that may reflect a broad region of metasomatism, mantle hydration or melt-depleted lithospheric mantle. At the MCSC ridge-axis to the north, the oceanic crust appears to be forming in zones, where each zone is defined by the volume of its magma supply. The ridge tip adjacent to the SITF is currently in a magma rich phase of accretion. However, there is no evidence for melt leakage into the transform zone. The width and crustal structure of the SITF suggests its motion is currently predominantly orthogonal to spreading. Comparison to CAYSEIS Profile P04, located to the west and running across-margin and through 10 Ma MCSC oceanic crust, suggests that, at about this time, motion along the SITF had a left-lateral transtensional component, that accounts for its apparently broad seabed appearance westwards.
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  • 56
    Publication Date: 2024-02-19
    Description: Tide gauge metadata catalogue V1.0 (EU-TGN or European and adjacent areas Tide Gauge Network Inventory); accuracy and precision review of the EuroGOOS Tide Gauge Task Team (TGTT) database of permanent monitoring nodes for European and adjacent coastlines. A metadata catalogue of all permanent, managed tide level monitoring stations across Europe and adjacent coastlines, including North Africa.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 57
    Publication Date: 2024-02-19
    Description: The WP5 Coastal Resilience and Operational Services demonstrator aims to design and deploy innovative sea level monitoring systems, integrating their observations with downscaled model forecasts into an alert-based monitoring and forecasting tool (OSPAC) that is design for use by ports and local authorities. As part of this data integration process, sea level observations must be quality-controlled in near real-time, to minimise the risk of false alarms. This has historically been achieved using an established open-source software package (SELENE). Recent progress using automatic quality control (QC) in delayed mode has led to the development of additional functionality that could enhance the SELENE software. At the same time, the delivery of new sea level time series from Global Navigation Satellite Systems (GNSS), provides an additional means of data validation. WP5 aims to enhance the SELENE software by incorporating these enhancements and new data feeds, thereby improving the quality of the OSPAC tool. A delay in the installation of the sea level monitoring systems has led to a corresponding delay in the provision of data inputs to SELENE and subsequently to OSPAC. Some development work has been possible using alternative test time series, but a key implementer in presently taking parental leave, which will delay further development work until October 2023. This deliverable report will be updated thereafter.
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  • 58
    Publication Date: 2024-02-19
    Description: This report presents steps for the design and implementation of a marine observatory providing current and forecasted oceanic conditions relevant to the aquaculture sector, with particular focus on “Extreme Marine Events”. Examples of successful implementation of these guidelines in the framework of the EuroSea project are presented for two aquaculture sites: Deenish Island in Ireland and El Campello in Spain. The process starts with stakeholder interaction to understand their main needs and concerns and is followed by the design of the software architecture that carries out the data acquisition, post-processing and visualisation in an open-access web platform. User feedback is of paramount importance during the whole process to ensure the services offered match the needs of the aquaculture sector.
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  • 59
    Publication Date: 2024-02-19
    Description: The overall goal of this report is to analyse the EuroSea itinerant exhibition as a case study of public engagement activity. Aimed at the general public, this modular and itinerant exhibition raises awareness about the EuroSea project while also promoting ocean literacy and highlighting the importance of ocean observing and forecasting. Public engagement plays a crucial role in Horizon 2020, the EU's research and innovation funding program. It aims to bridge the gap between researchers and society, ensuring that their work is aligned with societal needs and values. This involves bringing together various stakeholders, including researchers, policymakers, industry representatives, civil society organizations, NGOs, and citizens, to foster inclusive and transparent dialogue. The benefits of public engagement are evident in the research and innovation process. It stimulates creativity and innovation, brings ocean science to a broader audience, builds trust and credibility and promotes ocean literacy and empowerment among citizens. Within Horizon 2020, the EuroSea Communication Work Package 8 focuses on public engagement activities related to ocean observing and forecasting, among other activities. To raise awareness about the EuroSea project and ocean observation, the EuroSea itinerant exhibition was created. This exhibition features printed panels, audiovisuals, and a photobooth that could be adapted and translated for different locations. The exhibition has been presented at 8 events and locations across Europe, aiming to engage the general public, promote ocean literacy, and emphasize the importance of ocean observation and forecasting. This report specifically focuses on three events targeted to the general public where the EuroSea exhibition was showcased: 1) 2022 European Researcher’s Night. 2022, September 30th in Palma (Mallorca, Spain); 2) 25th Galway Science & Technology Festival. 2022, November 13th in Galway (Ireland); and 3) 10th ‘Science for all’. 2023, May 11-13th in Palma (Mallorca, Spain). To evaluate the impact of the EuroSea exhibition, an online survey was conducted. The survey assessed visitor satisfaction, knowledge acquisition, interest in the topic, prior knowledge of EuroSea and ocean observation, and preferences for future engagement activities. A total of 41 people participated in the survey. The main results obtained from the analysis of the data demonstrate an overall positive satisfaction with the exhibition and a high level of interest in the topic. Participants reported acquiring new knowledge and expressed a desire for future engagement activities. Additionally, the survey provided valuable demographic insights into the participants, including their age, gender, employment status, educational background, and frequency of engagement in ocean science outreach activities. The findings from the survey will contribute to the improvement of future public engagement activities by better understanding the needs and interests of the public regarding ocean observation and forecasting. This document emphasizes the significance of public engagement in research and innovation, specifically within the EuroSea project. The EuroSea itinerant exhibition was developed to raise awareness and promote ocean literacy, while the survey conducted during the exhibition provided valuable insights into participant satisfaction and preferences. This information will be instrumental in enhancing future engagement efforts.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 60
    Publication Date: 2024-02-19
    Description: This report presents the results of Task 7.3 on “Development of BGC-Argo data quality validation based on an integrative multiplatform approach”. Observing changes in ocean conditions on the spatiotemporal scales necessary to constrain carbon uptake is a challenge. Defined as an Essential Ocean Variable (EOV) by the Global Ocean Observing System (GOOS, e.g., Tanhua et al., 2019), pH is relevant to assess numerous crucial questions regarding the oceanic evolution in response to the current global changes. However, the large spatiotemporal variability of this carbonate system parameter requires sustained observations to decipher trends and punctual events. Within this scope, numerous pH sensors suitable for deployments both on autonomous observing tools and fixed stations have been developed. Nevertheless, as interpreting changes relies on accurate data, and because offsets or drifts in pH data might appear in response to changes in the sensor k0 constant, a consistent and rigorous correction procedure to quality-control and process the data has been implemented. This report presents the application of this method to pH data acquired by BGC-Argo floats launched in the Tropical Atlantic area.
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  • 61
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    Unknown
    EuroSea
    Publication Date: 2024-02-19
    Description: The EuroSea project is improving the coordination of the European ocean observing and forecasting system to strengthen its capability of tacking the societal challenges related to ocean health, climate change, mitigation of ocean-related natural hazards, and the sustainable exploitation of marine ecosystem services in the Blue Economy. The scientific excellence of the project is based on its better integration, assimilation, coordination and governance of methods, practices, and instruments to collect fit-for-purpose ocean data and the development of innovative tools and solutions to manage some natural coastal risks and support more efficiently fisheries and aquaculture. The societal impact of the research and innovation activities carried out by the EuroSea consortium is enabled through the responsible research and innovation (RRI) policy concept implemented throughout the project progress development and, in particular, in the demonstrators work packages and in those activities focused on communication, dissemination, exploitation and legacy. This report summarizes how the six articulations of the RRI approach were applied so far in the EuroSea project. It also offers some recommendations to boost the societal benefits provided by inclusivity, equality, ethics, transparency and collaborative co-design and co-creation in the research and innovation process applied to ocean observing. Now, and even more in the future, it is necessary to multiply the opportunities to share knowledge and expertise among all transdisciplinary actors to be engaged in improving the European and global ocean observing and forecasting. Moreover, the emerging critical problems affecting the ocean require an increased public involvement through open access to ocean information, effective communication and dissemination of research findings, more diffuse ocean literacy and collective mobilisation. Only these factors seem to be able to establish the global common responsibility necessary to enhance the ocean sustainability, as advocated by the UN Decade for Ocean Science for Sustainable Development supporting the achievement of the SDG 14 in the UN Agenda 2030.
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  • 62
  • 63
    Publication Date: 2024-02-19
    Description: This report presents the results of task 7.3 on “Quantification of improvements in carbon flux data for the tropical Atlantic based on the multi-platform and neural network approach”. To better constrain changes in the ocean’s capture and sequestration of CO2 emitted by human activities, in situ measurements are needed. Tropical regions are considered to be mostly sources of CO2 to the atmosphere due to specific circulation features, with large interannual variability mainly controlled by physical drivers (Padin et al., 2010). The tropical Atlantic is the second largest source, after the tropical Pacific, of CO2 to the atmosphere (Landschützer et al., 2014). However, it is not a homogeneous zone, as it is affected by many physical and biogeochemical processes that vary on many time scales and affect surrounding areas (Foltz et al., 2019). The Tropical Atlantic Observing System (TAOS) has progressed substantially over the past two decades. Still, many challenges and uncertainties remain to require further studies into the area’s role in terms of carbon fluxes (Foltz et al., 2019). Monitoring and sustained observations of surface oceanic CO2 are critical for understanding the fate of CO2 as it penetrates the ocean and during its sequestration at depth. This deliverable relies on different observing platforms deployed specifically as part of the EuroSea project (a Saildrone, and 5 pH-equipped BGC-Argo floats) as well as on the platforms as part of the TAOS (CO2-equipped moorings, cruises, models, and data products). It also builds on the work done in D7.1 and D7.2 on the deployment and quality control of pH-equipped BGC-Argo floats and Saildrone data. Indeed, high-quality homogeneously calibrated carbonate variable measurements are mandatory to be able to compute air-sea CO2 fluxes at a basin scale from multiple observing platforms.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 64
    Publication Date: 2024-02-19
    Description: This report summarises demonstrated benefit from integrating BOOS and HELCOM observations with CMEMS observations, including i) improved observation data accessibility by BOOS, CMEMS INSTAC and EMODnet, ii) improved quality of frequently updated CMEMS reanalysis, and iii) improved quality and update frequency of eutrophication assessment in the Baltic Sea based on the reanalysis. Also, feasibility for extending this approach to other regional seas, other indicators, and fishery advice applications is analysed and recommendations from the workshop on “Full value chain integration for monitoring and assessment” are provided.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 65
    Publication Date: 2024-02-19
    Description: This deliverable provides an overview of EuroSea outcomes related to interior ocean carbon variability in deep convection areas in order to assess the linkage of these processes for the use in national climate action (NCA) plans delivered in the framework of the Paris Agreement. In summary, large-scale connectivity in the ocean does not allow clear delineation of patterns of regional carbon uptake across national boundaries, limiting an assessment of the Exclusive Economic Zones (EEZ) in light of NCA plans. This problem becomes already clear by a simple scale estimation: considering sluggish, open ocean (away from continental boundaries) advection speeds of 2 cm/s result in a “relocation” of any water parcel by roughly 630 km per year (or 3150 km in 5 years Paris Agreement carbon auditing period) and crossing national borders easily. Knowing changes in the global ocean carbon uptake is of great importance for the preparation of NCA plans. This is because the NCA plans are motivated by the globally averaged atmospheric CO2 concentration, which is the sum of all sources and sinks and including the ocean sink. In case of decrease in the oceanic sink (e.g., IPCC, 2021), more CO2 will remain in the atmosphere and consequently nations will need to formulate their NCA plans with increased ambition in order to meet the CO2 target defined in the Paris Agreement. In this deliverable key approaches for the assessment of the global ocean carbon uptake have been applied to ocean areas. The observational requirements for applying statistical approaches (i.e., artificial neural networks, Fourrier et al., 2020) to reconstruct dissolved inorganic carbon (DIC) from oxygen, nutrient and hydrographic data are analysed. It is shown that even small changes in the DIC content determined in this way can be linked to anthropogenic increases in atmospheric carbon (Cant). Furthermore, it has been shown that multilinear regression techniques can be used to produce maps of ocean surface carbon fluxes at very high spatial resolution, which in turn can provide a much more accurate estimate of regional CO2 uptake (or release). Finally, a quantification of the redistribution of dissolved gases in boundary current systems could be investigated by following recommendations for observational methods stemming from this deliverable. This deliverable recommends improvement of carbon sampling in all nations EEZ regions and following global standards. Because the objective targets a global assessment, the data must be disseminated rapidly and in a FAIR fashion to enable further global integration (e.g., global carbon budget). A need for defining responsibilities for such global integration and the resourcing is required. It is recommended to make use of statistical methods to create surface and interior carbon parameter distributions via multiparameter approaches with a sufficient amount of reference data (e.g., co-located DIC, oxygen, nutrients, chlorophyll-a, hydrography). In the light of the ongoing crisis related to global availability of the Certified Reference Materials (CRMs) for carbonate system measurements, provision of European-produced material becomes critical to enable traceability of future measurements. Nations should be encouraged to provide appropriate resources by means of corresponding European directives. Example for such national commitments is the collection of reference data in the framework of the Common Fisheries Policy.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 66
  • 67
    Publication Date: 2024-02-19
    Description: Currently, the ocean carbon sink annually removes about a third of anthropogenic fossil fuel and industrial CO2 emissions, reducing therefore climate change damages and CO2 abatement costs. While the land sinks have entered climate policies, the ocean sink has not—for good reasons since the former stores carbon within the boundaries of a state while the ocean removes carbon from the atmosphere rather in its property as a global common. However, the question remains what is the value of the ocean carbon sink and should it be differently attributed when comparing a coastal state with a large exclusive economic zone (EEZ) compared to landlocked state. Here, we demonstrate different approaches to value the ocean sink, comparing a climate-change damage-based approach with an abatement, market-based approach. We use a high-resolution carbon flux dataset (0.25x0.25 degree) to estimate the ocean carbon sink and source in coastal areas. We assign a net sink of 1.72 GtC proportional to countries with negative carbon fluxes in their EEZ. In our calculation the annual value of the global ocean sink ranges from 61.19 B USD (Std 31.80), equivalent to the 2021 GDP of Slovenia, to 1433 B USD (Std 94.30), equivalent to the 2021 GDP of Spain (World Bank data) for the abatement cost-based assessment approach (assuming full emission trading and low ambition levels in the national determined contribution) and for the climate-change damage-based assessment approach relying on an upper value of the social cost of carbon in our investigation. By breaking down the carbon sink by nations EEZ we estimate which countries are the largest donors of ocean carbon wealth and which countries would be affected the most if a weakening of the ocean sink would need to be compensated by higher emission reduction levels.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 68
    Publication Date: 2024-02-19
    Description: WP5’s Coastal Resilience and Operational Services demonstrator aimed to deliver capacity-building work in a developing country (Colombia) to enable local stakeholders to install a state-of-the-art sea level monitoring system independently. In practice, the WP5 team met this objective and has additionally delivered capacity-building work in tide gauge installation in 2 other countries (Spain and Italy), in order to support the longevity of the EuroSea tide gauge systems. As planned, training material was delivered in relation to the maintenance of these systems in all 3 locations. All installation procedures were fully-documented to support the tide gauge operators in case the systems are to be relocated, refurbished or decommissioned at a future data (for example, in the event of port redevelopment works). Training in the use of quality control software and the OSPAC (Operational Services at the Service of Ports and Cities) tool is planned (but pending) and this deliverable will be updated once that work is complete.
    Type: Report , NonPeerReviewed
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  • 69
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    EuroSea
    Publication Date: 2024-02-16
    Description: The Surface Ocean CO2 Atlas (SOCAT) is a synthesis of quality-controlled fCO2 (fugacity of carbon dioxide) values for the global surface oceans and coastal seas with annual updates. SOCAT aims to provide data with the highest possible quality for carbon data – consistent quality control (QC) is essential in achieving this primary goal of SOCAT. Currently there are various steps of quality control, and within this task of EuroSea we aimed to develop an operational implementation of QC as a showcase for data within SOCAT from the European Research Infrastructure Integrated Carbon Observing System. The aim within EuroSea is to increase the Technology Readiness Level (TRL) from 5 (Technology validated in relevant environment) to 7 (system prototype demonstration in operational environment) for relevant ICOS data for direct submission to SOCAT. This was achieved by creating automated quality control into the ICOS state-of-art-software QuinCe, a web-based tool for processing and quality control of data from in situ sensors and underway instruments that is used for first and second level quality control for operational ICOS stations. One important aspect of SOCAT is the assessment of data quality, to ensure that all published data is fit for purpose and manual eyes-on QC is currently essential to lower uncertainties. Currently, this assessment consists of evaluating the metadata of each dataset to ensure that the correct Standard Operational Procedures (SOPs) have been followed during data collection, that the system setup is correct, instruments are calibrated and in addition examining data to ensure they are of good quality. SOCAT consists of three steps of QC: 1.) QC while data is being ingested; 2.) Eyes-on QC by regional experts and 3.) QC for the entire dataset defining the uncertainty based upon the submitted metadata and within this task it has been shown that certain parts of this QC process can be automated while other levels bear challenges if a higher level of TRL is aimed for.
    Type: Report , NonPeerReviewed
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  • 70
    Publication Date: 2024-02-16
    Description: The present deliverable is a continuation of deliverable D4.21, in which we presented the first steps in the design and preparation of different reanalysis simulations assimilating glider data. We here show the assessment and intercomparison of CMCC MedFS and SOCIB WMOP systems experiments. We have performed, for each system, three different experiments, running a one-year simulation during 2017. We compare a free-run simulation without data assimilation (FREE) and two reanalyses including assimilation: one considering only the generic data sources included in each operational system (NOGLID) and another one adding glider observations to the previous dataset (GLIDER). The models are assessed and inter compared to each other, focusing on the performance to represent the observed 3D structure of the ocean and on their capacity to recreate physical processes, as an anticyclonic eddy structure present in the Balearic sea. Results show how in both systems the use of glider observations can help to further improve the results obtained when using data assimilation, helping to an enhancement of the forecasting capabilities.
    Type: Report , NonPeerReviewed
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  • 71
    Publication Date: 2024-02-16
    Description: The accuracy of the Copernicus Marine Environment and Monitoring Service (CMEMS) ocean analysis and forecasts highly depend on the availability and quality of observations to be assimilated. In situ observations are complementary to satellite observations that are restricted to the ocean surface. Higher resolution model forecasts are required by users of the CMEMS global and regional ocean analysis and forecasts. To support this with an efficient observational constrain of the model forecast via data assimilation, an increase observation coverage is needed, associated with an improved usage of the available ocean observations. This work exploits the capabilities of operational systems to provide comprehensive information for the evolution of the GOOS. In this report, we analyse the use and the efficiency of the in-situ observations to constrain regional and global Mercator Ocean systems. Physical and biogeochemical variables are considered. The in-situ observations are used either to estimate physical ocean state at global and regional scale via data assimilation or to estimate BGC model parameters. The impact of the physical in situ observations assimilated in open ocean and coastal areas is assessed with numerical data assimilation experiments. The experiments are conducted with the regional 1/36° resolution and global 1/12° resolution systems operated by Mercator Ocean for the Copernicus Marine Service. For the global physical ocean, the focus is on the tropical ocean to better understand how the tropical mooring observations constrain the intraseasonal to daily variability and the complementarity with satellite observations and the deep ocean. The tropical moorings provide unique high frequency observations at different depth, but they are far away from each other, so part of the signal in the observation are decorrelated from one mooring to the others. It is only via an integrated approach, as data assimilation into a dynamical model and complementarity with other observing networks that those observations can efficiently constrain the different scales of variability of the tropical ocean circulation. As the satellite observations brings higher spatial resolution between the tropical moorings but for the ocean surface, we show that the tropical mooring and Argo profile data assimilation constrain the larger scale ocean thermohaline vertical structure (EuroSea D2.2; Gasparin et al., 2023). The representation of the high frequency signals observed at mooring location is also significantly improved in the model analysis compared to a non-assimilative simulation. The ocean below 2000 m depth is still largely under constrained as very few observations exist. Some deep ocean basins, as the Antarctic deep ocean, shows significant trend over the past decade but they are still not accurately monitored. Based on the spread of four deep ocean reanalysis estimates, large uncertainties were estimated in representing local heat and freshwater content in the deep ocean. Additionally, temperature and salinity field comparison with deep Argo observations demonstrates that reanalysis errors in the deep ocean are of the same size as or even stronger than the observed deep ocean signal. OSSE already suggested that the deployment of a global deep Argo array will significantly constrain the deep ocean in reanalysis to be closer to the observations (Gasparin et al., 2020). At regional and coastal scales, the physical ocean circulation is dominated by higher frequency, smaller scale processes than the open ocean which requires different observation strategy to be well monitor. The impact of assimilating high frequency and high-resolution observations provided by gliders on European shelves is analysed with the regional Iberic Biscay and Irish (IBI) system. It was found that repetitive glider sections can efficiently help to constrain the transport of water masses flowing across those sections. BGC ocean models are less mature than physical ocean models and some variable dependencies are still based on empirical functions. In this task, Argo BGC profile observations were used to optimize the parameters of the global CMEMS biogeochemical model, PISCES. A particle filter algorithm was chosen to optimize a 1D configuration of PISCES in the North Atlantic. The optimization of the PISCES 1D model significantly improves the model's ability to reproduce the North Atlantic bloom Recommendations on the in-situ network extensions for real time ocean monitoring are given based on those results, and the one also obtained in the WP2, Task 2.2 where data assimilation experiments but with simulated observations where conducted. Argo extension and the complementarity with satellite altimetry was also extensively studied.
    Type: Report , NonPeerReviewed
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  • 72
    Publication Date: 2024-02-16
    Description: This document presents the results of simulations that include glider profiles assimilation. Simulations are performed with the Marine Copernicus operational biogeochemical model system of the Mediterranean Sea. The deliverable shows that the assimilation of BGC-glider is feasible in the contest of biogeochemical operational systems and that it is built upon the experience of BGC-Argo float data assimilation. Different configuration of the assimilation of glider data have been tested to assess the impact of the physical and biogeochemical glider observations. The deliverable also describes the pre-processing activities of the BGC-glider data to provide qualified observations for the data assimilation and the cross validation of chlorophyll glider data with other sensors (ocean colour and BGC-Argo floats). Results of the simulations show that BGC-glider data assimilation, as already shown for BGC-Argo floats, provides complementary information with respect to Ocean Colour data (which is the only or the most commonly assimilated data in biogeochemical operational systems). Beside their relatively limited horizontal spatial impact, the assimilation of BGC profiles can constrain model simulations for relevant biogeochemical processes in specific periods (summer and transition periods) and layers (surface and subsurface). Results also highlight the importance of the assimilation modelling systems that can efficiently resolve the inconsistencies between chlorophyll observations of different sensors.
    Type: Report , NonPeerReviewed
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  • 73
    Publication Date: 2024-02-16
    Description: This D3.17 “Data Integration” deliverable has been written in complementarity of the deliverables D3.13 “Data handbook” and D3.7 “Networks harmonisation recommendations”. It has been primarily written with the aim to be useful for users, looking for in situ data or datasets, in their choice of data infrastructures (CMEMS - Copernicus Marine Environment Monitoring Service – EMODnet – European Marine Observation and Data network - and SeaDataNet) best suited to their needs. To start, this deliverable provides a description of these three major European data integrators and explains how to access to the data and what type of data it is possible to find. The cooperation between these three data infrastructures is also presented. A recommendation about what type of metadata should be attached to the measurement is also included in this deliverable. Its objective is to encourage data infrastructures to harmonize their metadata, which would allow data marine users to switch more easily from one infrastructure to another one and thus extend access to more data. This deliverable also presents two case studies, in which we put ourselves in the place of a in situ marine data user.
    Type: Report , NonPeerReviewed
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  • 74
    Publication Date: 2024-02-16
    Description: This deliverable presents the Final Assessment of the observation and thematic networks as those represented in work package 3 of EuroSea, taking as a reference the information on Deliverable 3.2 Observing Network Initial Assessment. Following the same approach with D3.2 the original questionnaire was modified accordingly in order to depict the progress made on the same Network Attributes, Commitments and Benefits following the GOOS, OCG guidelines. The unforeseen COVID-19 pandemic had significant effects upon WP3 activities since the main mechanism foreseen to advance progress within the different networks was the organization of in person workshops. Moreover, adequate funds were allocated towards this in order to promote inclusivity and participation. Adapting to the new situation the first series of workshops had to be changed into online only events which despite the inherent difficulty, proved to have significant advantages as well. In particular they gave the opportunity for a significant number of people to join from all around the globe and participate in the events (for example the Sea Level WS). Another challenge proved to be the variability within some networks with sub-components or sub-groups having significantly different characteristics. In particular Eulerian platforms comprise a wide range of platforms - fixed moorings, surface buoys, cable bottom platforms - with some of them being part of mature and well-developed networks (OceanSITES, EMSO etc) while other are loose partners of on-going programs and projects (JERICO RI, coastal buoys). EuroSea activities had a significant positive impact on all the observing and thematic networks, actively promoting synergies and collaboration, with most of them successfully reaching Framework Processes Readiness Criteria Level 7 and above. Although progress at many different aspects must continue beyond EuroSea, it is important that the framework has been set. It is thus suggested that an annual evaluation/assessment process for each network/task team is adopted within EuroGOOS. By going through this exercise annually, each EuroGOOS Task Team (observing network) will be able to describe its current state, assess progress and most importantly to define next targets and priorities.
    Type: Report , NonPeerReviewed
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  • 75
    Publication Date: 2024-02-21
    Description: Sea-level change is geographically non-uniform, with regional departures that can reach several times the global average rate of change. Characterizing this spatial variability and understanding its causes is crucial to the design of adaptation strategies for sea-level rise. This, as it turns out, is no easy feat, primarily due to the sparseness of the observational sea-level record in time and space. Long tide gauge records are restricted to a few locations along the coast. Satellite altimetry offers a better spatial coverage but only since 1992. In the Mediterranean Sea, the tide gauge network is heavily biased towards the European shorelines, with only one record with at least 35 years of data on the African coasts. Past studies have attempted to address the difficulties related to this data sparseness in the Mediterranean Sea by combining the available tide gauge records with satellite altimetry observations. The vast majority of such studies represent sea level through a combination of altimetry-derived empirical orthogonal functions whose temporal amplitudes are then inferred from the tide gauge data. Such methods, however, have tremendous difficulty in separating trends and variability, make no distinction between relative and geocentric sea level, and tell us nothing about the causes of sea level changes. Here, we combine observational data from tide gauges and altimetry with sea-level fingerprints of land-mass changes using a Bayesian hierarchical model (BHM) to quantify the sources of sea-level changes since 1960 in the Mediterranean Sea. The Bayesian estimates are provided on 1/4o x 1/4o regular grid. We find that Mediterranean Sea level rose at a relatively low rate from 1960 to 1990, at which point it started rising significantly faster with comparable contributions from sterodynamic sea level (ocean dynamics and thermal expansion) and land-mass changes.
    Type: Report , NonPeerReviewed , info:eu-repo/semantics/book
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  • 76
    Publication Date: 2024-02-21
    Description: Tide gauges can capture sea level variability on multiple timescales, from high frequency events like waves, tides and tsunamis, to seasonal and interannual changes and the longer-term trends associated with Climate Change. However, financial constraints dictate that they are often maintained to lower standards than the stringent accuracy requirements demanded by the IOC-UNESCO’s Global Sea Level Observing System (GLOSS) for monitoring sea level rise. In addition, a sparsity of Global Navigation Satellite System (GNSS) receivers at the coast means that there are large uncertainties in rates of land motion at tide gauges, which also hampers the estimation of long-term sea level trends. Task 5.1.1 has devised prototype low maintenance tide gauge systems, powered by renewable energy and which monitor both land motion and sea level using novel techniques such as ground-based GNSS Interferometric Reflectometry (GNSS-IR). These systems eliminate the need for costly ongoing levelling exercises and also incorporate customisations to local monitoring needs, such as sensors for lightning detection and wave height. Despite a number of unforeseen setbacks, these prototype systems are now operating at 2 locations in the Mediterranean Sea and a third system is in transit to Colombia for installation by local stakeholders who have been trained in the installation methodology by the WP5 team. It is hoped that there is potential to advance these technological solutions as a global standard, via the GLOSS community.
    Type: Report , NonPeerReviewed
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  • 77
    Publication Date: 2024-04-08
    Description: The Observing Air–Sea Interactions Strategy (OASIS) is a new United Nations Decade of Ocean Science for Sustainable Development programme working to develop a practical, integrated approach for observing air–sea interactions globally for improved Earth system (including ecosystem) forecasts, CO2 uptake assessments called for by the Paris Agreement, and invaluable surface ocean information for decision makers. Our “Theory of Change” relies upon leveraged multi-disciplinary activities, partnerships, and capacity strengthening. Recommendations from 〉40 OceanObs’19 community papers and a series of workshops have been consolidated into three interlinked Grand Ideas for creating #1: a globally distributed network of mobile air–sea observing platforms built around an expanded array of long-term time-series stations; #2: a satellite network, with high spatial and temporal resolution, optimized for measuring air–sea fluxes; and #3: improved representation of air–sea coupling in a hierarchy of Earth system models. OASIS activities are organized across five Theme Teams: (1) Observing Network Design & Model Improvement; (2) Partnership & Capacity Strengthening; (3) UN Decade OASIS Actions; (4) Best Practices & Interoperability Experiments; and (5) Findable–Accessible–Interoperable–Reusable (FAIR) models, data, and OASIS products. Stakeholders, including researchers, are actively recruited to participate in Theme Teams to help promote a predicted, safe, clean, healthy, resilient, and productive ocean.
    Type: Article , PeerReviewed
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