The Hellenic deep sea observatory: Science objectives and implementation

Lykousis, V.; Nittis, K.; Ballas, D.; Perivoliotis, L.; Kassis, Dimitris; Pagonis, Paris; Sakellariou, D.

doi:10.1007/978-3-642-11374-1_5

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…The conditions of the Ionian Sea make it an important region for obtaining high resolution hydrodynamic data. It fills the deepest basin in the Mediterranean and is a transitional area where water masses from Western and Eastern Mediterranean meet and interact (Nittis et al, 1993;Lykousis et al, 2015). Covering a surface area of Medit.…”

Section: Introductionmentioning

confidence: 99%

Comparison of high resolution hydrodynamic model outputs with in-situ Argo profiles in the Ionian Sea

et al. 2017

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In-situ monitoring is an essential component for the development of hydrodynamic numerical models. Argo expansion into marginal seas has enabled the advancement of high resolution regional nested models through initialization, assimilation and validation processes. The SANI (Southern Adriatic-Northern Ionian) hydrodynamic model is a regional nested model producing high resolution outputs for the period 2008-2012. For the corresponding time period, 21 free drifting Argo floats recorded Temperature –Salinity (T/S) profiles throughout the region. This study presents the inter-comparison of the two data sets whilst noting interesting aspects of the model performance regarding the representation of the major water masses characteristics of the SANI area. Aside from the inter-comparison in a basin’s scale, a spatio-temporal analysis is also performed. The results indicate an adequate response of the model simulations regarding the basic hydrographic features of the region. Nevertheless, important differences are highlighted mainly in the upper and deep layers of the study area. At a regional scale, inter-annual variability of the model’s performance is observed reflecting the hydrographic changes occurred in the wider area during the study period. Overall, the results present the strong points but also highlight the weaknesses of the model. They also confirm the challenging task of producing high resolution numerical simulations in transitional areas such as the Ionian Sea.

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Section: Introductionmentioning

confidence: 99%

Comparison of high resolution hydrodynamic model outputs with in-situ Argo profiles in the Ionian Sea

et al. 2017

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“…The Western Ionian Sea Regional Facility has a focus mainly on geo-hazards and underwater acoustics (e.g., Monna et al, 2014). The Hellenic Arc Regional Facility monitors geo-hazards, physical oceanography and biogeochemistry (e.g., Lykousis et al, 2015). The Black Sea is monitored by the EuxRo buoys (e.g., Stanica and Melinte, 2020).…”

Section: European Multidisciplinary Seafloor and Water Column Observa...mentioning

confidence: 99%

The EMSO Generic Instrument Module (EGIM): Standardized and Interoperable Instrumentation for Ocean Observation

et al. 2022

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The oceans are a fundamental source for climate balance, sustainability of resources and life on Earth, therefore society has a strong and pressing interest in maintaining and, where possible, restoring the health of the marine ecosystems. Effective, integrated ocean observation is key to suggesting actions to reduce anthropogenic impact from coastal to deep-sea environments and address the main challenges of the 21st century, which are summarized in the UN Sustainable Development Goals and Blue Growth strategies. The European Multidisciplinary Seafloor and water column Observatory (EMSO), is a European Research Infrastructure Consortium (ERIC), with the aim of providing long-term observations via fixed-point ocean observatories in key environmental locations across European seas from the Arctic to the Black Sea. These may be supported by ship-based observations and autonomous systems such as gliders. In this paper, we present the EMSO Generic Instrument Module (EGIM), a deployment ready multi-sensor instrumentation module, designed to measure physical, biogeochemical, biological and ecosystem variables consistently, in a range of marine environments, over long periods of time. Here, we describe the system, features, configuration, operation and data management. We demonstrate, through a series of coastal and oceanic pilot experiments that the EGIM is a valuable standard ocean observation module, which can significantly improve the capacity of existing ocean observatories and provides the basis for new observatories. The diverse examples of use included the monitoring of fish activity response upon oceanographic variability, hydrothermal vent fluids and particle dispersion, passive acoustic monitoring of marine mammals and time series of environmental variation in the water column. With the EGIM available to all the EMSO Regional Facilities, EMSO will be reaching a milestone in standardization and interoperability, marking a key capability advancement in addressing issues of sustainability in resource and habitat management of the oceans.

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The POSEIDON Ocean Observing System: Technological Development and Challenges

Ntoumas

Perivoliotis

Petihakis

et al. 2022

JMSE

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Advanced marine observation infrastructures are the most significant scientific tool for the study of marine ecosystem trends and shifts. Ocean monitoring technologies, though highly demanding and expensive, are essential for the monitoring and long-term study of oceanic systems. The POSEIDON system for monitoring and forecasting the marine environment is an augmented research infrastructure, unique in the Eastern Mediterranean basin, contributing to the European Ocean Observing System implementation, focusing—among others—on biogeochemical observations and deep-sea ecosystem and geological processes. The technological evolution of the POSEIDON system through a science-coupled strategy supported by engineers and scientists, resulted in a state-of-the-art ocean observing system. There has been a continuous expansion of the infrastructure with new scientific platforms and supporting facilities. Innovative sensing technologies were introduced in the operational data acquisition and new methodologies and tools were developed to improve the system operations and efficiency. As a part of the scientific community of ocean observatories, POSEIDON contributes actively to the improving of the ocean observing. International access to engineering and field demonstrating services, data products and technology testing facilities has been offered to scientists and industry partners. POSEIDON is a widely recognizable international technology testing/demonstrating node specializing in marine technology providing high-level services.

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The Hellenic deep sea observatory: Science objectives and implementation

Cited by 3 publications

References 30 publications

Comparison of high resolution hydrodynamic model outputs with in-situ Argo profiles in the Ionian Sea

Comparison of high resolution hydrodynamic model outputs with in-situ Argo profiles in the Ionian Sea

The EMSO Generic Instrument Module (EGIM): Standardized and Interoperable Instrumentation for Ocean Observation

The POSEIDON Ocean Observing System: Technological Development and Challenges

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