Coastal high-frequency radars in the Mediterranean – Part 2: Applications in support of science priorities and societal needs

Reyes, Emma; Aguiar, Eva; Bendoni, Michele; Berta, Maristella; Brandini, Carlo; Cáceres-Euse, Alejandro; Capodici, Fulvio; Cardín, Vanessa; Cianelli, Daniela; Ciraolo, Giuseppe; Corgnati, Lorenzo; Dadić, Vlado; Doronzo, Bartolomeo; Drago, Aldo; Dumas, Dylan; Falco, Pierpaolo; Fattorini, Maria; Fernandes, M. Joana; Gauci, Adam; Gómez, Roberto; Griffa, Annalisa; Guérin, Charles-Antoine; Hernández‐Carrasco, Ismael; Hernández-Lasheras, Jaime; Ličer, Matjaž; Lorente, Pablo; Magaldi, Marcello G.; Mantovani, Carlo; Mihanović, Hrvoje; Molcard, Anne; Mourre, Baptiste; Révelard, Adèle; Suàrez, Nydia Catalina Reyes; Saviano, Simona; Sciascia, Roberta; Taddei, Stefano; Tintoré, Joaquín; Toledo, Yaron; Uttieri, Marco; Vilibić, Ivica; Zambianchi, Enrico; Orfila, Alejandro

doi:10.5194/os-18-797-2022

Cited by 16 publications

(12 citation statements)

References 246 publications

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“…While this paper constitutes the introductory part of a double contribution wherein the current state of the art is thoroughly presented, the second part addresses the latest scientific breakthroughs with HFR technology achieved in the Mediterranean region to fulfill stakeholder demands (Reyes et al, 2022). In particular, the second paper is built over three main cornerstones (maritime safety, extreme event monitoring, and ecological decision support) to showcase emerging research-based downstream applications of societal benefit founded on the operational use of quality-controlled HFRderived data.…”

Section: Discussionmentioning

confidence: 99%

“…This paper, which constitutes the first part of a double contribution, aims to provide a panoramic overview of the roadmap to transform individual HFR systems into a fully integrated, mature network operated permanently in the Mediterranean Sea. The second part focuses on the latest scientific breakthroughs and diverse research-based applications of HFR data, fully aligned with predefined science priorities, in order to meet both societal needs and stakeholder demands in an innovative way (Reyes et al, 2022). The paper is organized as follows.…”

Section: Objectives Of the Workmentioning

confidence: 99%

“…5). Previous validation experiments, some of them listed in Table 1, included comparisons against independent in situ observations, remotely sensed wave estimations, or numerical outcomes over a variety of regions in the Mediterranean Sea such as the Gulf of Naples (Falco et al, 2016;Saviano et al, 2019Saviano et al, , 2020aSaviano et al, , b, 2022, Sicily (Orasi et al, 2018), and the Ebro Delta (Lorente et al, 2021). Regardless of the manufacturer, the operational frequency, and the methodology used to determine wave parameters, the positive contribution of commercial HFR systems to characterize the main wave patterns (and the related spatiotemporal variability) has been unequivocally proven under both standard met-ocean conditions and severe sea states.…”

Section: Wave Measurement Retrieval From Hfrsmentioning

confidence: 99%

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Coastal high-frequency radars in the Mediterranean – Part 1: Status of operations and a framework for future development

Lorente

Aguiar

Bendoni³

et al. 2022

Ocean Sci.

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Abstract. Due to the semi-enclosed nature of the Mediterranean Sea, natural disasters and anthropogenic activities impose stronger pressures on its coastal ecosystems than in any other sea of the world. With the aim of responding adequately to science priorities and societal challenges, littoral waters must be effectively monitored with high-frequency radar (HFR) systems. This land-based remote sensing technology can provide, in near-real time, fine-resolution maps of the surface circulation over broad coastal areas, along with reliable directional wave and wind information. The main goal of this work is to showcase the current status of the Mediterranean HFR network and the future roadmap for orchestrated actions. Ongoing collaborative efforts and recent progress of this regional alliance are not only described but also connected with other European initiatives and global frameworks, highlighting the advantages of this cost-effective instrument for the multi-parameter monitoring of the sea state. Coordinated endeavors between HFR operators from different multi-disciplinary institutions are mandatory to reach a mature stage at both national and regional levels, striving to do the following: (i) harmonize deployment and maintenance practices; (ii) standardize data, metadata, and quality control procedures; (iii) centralize data management, visualization, and access platforms; and (iv) develop practical applications of societal benefit that can be used for strategic planning and informed decision-making in the Mediterranean marine environment. Such fit-for-purpose applications can serve for search and rescue operations, safe vessel navigation, tracking of marine pollutants, the monitoring of extreme events, the investigation of transport processes, and the connectivity between offshore waters and coastal ecosystems. Finally, future prospects within the Mediterranean framework are discussed along with a wealth of socioeconomic, technical, and scientific challenges to be faced during the implementation of this integrated HFR regional network.

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Section: Discussionmentioning

confidence: 99%

Section: Objectives Of the Workmentioning

confidence: 99%

Section: Wave Measurement Retrieval From Hfrsmentioning

confidence: 99%

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Coastal high-frequency radars in the Mediterranean – Part 1: Status of operations and a framework for future development

Lorente

Aguiar

Bendoni³

et al. 2022

Ocean Sci.

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“…Compared with the Okubo-Weiss method, this method can track and observe eddies for a long time and it can monitor the eddies merging and splitting, as well as the relationship between eddies and ocean currents. It has been widely used in various sea areas [11]. The trajectory of the UWE, where the red dot is the birthplaces, the black dot is the death places, the orange line is the eddy trajectory, and the red outline is the shape of the UWE when it died.…”

Section: Methodsmentioning

confidence: 99%

Analysis on the Evolution and Seasonal Variation of the Ulleung Warm Eddy

Kong

2023

J. Phys.: Conf. Ser.

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The Ulleung Warm Eddy (UWE) is a semi-permanent eddy, which has a very important impact on material transport in the Japan Sea, so we use aviso(Archiving, Validation and Interpretation of Satellite Oceanographic data) data and ARM3D data to analyze the seasonal variation of UWE that appeared in a total of 28 years from 1993 to 2020. We also analyze the evolution of the UWE that appears in 2019, and found that the eddies merging (splitting) can cause sudden increases (drops) in the nature of UWE. Seasonally, UWE’s area and eddy amplitude are strong in winter and spring, and weak in summer and autumn. The Tsushima Current (TC) has an important influence on UWE. The stronger (weaker) flow of TC, the weaker (stronger) the area and eddy amplitude of UWE.

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“…Mainly used for surface current data, HFr are proving increasingly useful in measuring wave fields [7,8]. The ocean wave parameters (significant wave height, peak period and direction) are obtained from the second-order echoes of the signal [9].…”

Section: Introductionmentioning

confidence: 99%

HF Radar Wind Direction: Multiannual Analysis Using Model and HF Network

et al. 2023

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HF radar systems have the potential to measure the wind direction, in addition to surface currents and wave fields. However, studies on HF radar for wind direction determination are rare in the scientific literature. Starting with the results presented in Saviano et al. (2021), we here expand on the reliability of the multiannual wind direction data retrieved over two periods, from May 2008 to December 2010 and from January to December 2012, by a network of three SeaSonde high-frequency (HF) radars operating in the Gulf of Naples (Central Tyrrhenian Sea, Western Mediterranean Sea). This study focuses on the measurements obtained by each antenna over three range cells along a coast–offshore transect, pointing to any potential geographically dependent measurement. The scarcity of offshore wind measurements requires the use of model-generated data for comparative purposes. The data here used are obtained from the Mediterranean Wind–Wave Model, which provides indications for both wave and wind parameters, and the ERA5@2km wind dataset obtained by dynamically downscaling ERA5 reanalysis. These data are first compared with in situ data and subsequently with HF-retrieved wind direction measurements. The analysis of the overall performance of the HF radar network in the Gulf of Naples confirms that the HF radar wind data show the best agreement when the wind speed exceeds a 5 m/s threshold, ensuring a sufficiently energetic surface wave field to be measured. The results obtained in the study suggest the necessity of wind measurements in offshore areas to validate the HF radar wind measurements and to improve the extraction algorithms. The present work opens up further investigations on the applications of wind data from SeaSonde HF radars as potential monitoring platforms, both in coastal and offshore areas.

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Coastal high-frequency radars in the Mediterranean – Part 2: Applications in support of science priorities and societal needs

Cited by 16 publications

References 246 publications

Coastal high-frequency radars in the Mediterranean – Part 1: Status of operations and a framework for future development

Coastal high-frequency radars in the Mediterranean – Part 1: Status of operations and a framework for future development

Analysis on the Evolution and Seasonal Variation of the Ulleung Warm Eddy

HF Radar Wind Direction: Multiannual Analysis Using Model and HF Network

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