A new Lagrangian-based short-term prediction methodology for high-frequency (HF) radar currents

Solabarrieta, Lohitzune; Hernández‐Carrasco, Ismael; Rubio, Anna; Campbell, Michael F.; Esnaola, Ganix; Mader, Julien; Jones, Burton H.; Orfila, Alejandro

doi:10.5194/os-17-755-2021

Cited by 4 publications

(3 citation statements)

References 60 publications

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“…HFR-derived short-term predictions were developed by Zelenke (2005), Frolov et al (2012), Barrick et al (2012), Orfila et al (2015), Solabarrieta et al (2016), Vilibić et al, (2016) and Abascal et al (2017). More recently, Solabarrieta et al (2021) developed a Lagrangian-based, empirical, real-time, short-term prediction (L-STP) system in order to provide short-term forecasts of up to 48 h of ocean currents from HFR data.…”

Section: Short-term Predictionsmentioning

confidence: 99%

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

Reyes

Aguiar

Bendoni³

et al. 2022

Ocean Sci.

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Abstract. The Mediterranean Sea is a prominent climate-change hot spot, with many socioeconomically vital coastal areas being the most vulnerable targets for maritime safety, diverse met-ocean hazards and marine pollution. Providing an unprecedented spatial and temporal resolution at wide coastal areas, high-frequency radars (HFRs) have been steadily gaining recognition as an effective land-based remote sensing technology for continuous monitoring of the surface circulation, increasingly waves and occasionally winds. HFR measurements have boosted the thorough scientific knowledge of coastal processes, also fostering a broad range of applications, which has promoted their integration in coastal ocean observing systems worldwide, with more than half of the European sites located in the Mediterranean coastal areas. In this work, we present a review of existing HFR data multidisciplinary science-based applications in the Mediterranean Sea, primarily focused on meeting end-user and science-driven requirements, addressing regional challenges in three main topics: (i) maritime safety, (ii) extreme hazards and (iii) environmental transport process. Additionally, the HFR observing and monitoring regional capabilities in the Mediterranean coastal areas required to underpin the underlying science and the further development of applications are also analyzed. The outcome of this assessment has allowed us to provide a set of recommendations for future improvement prospects to maximize the contribution to extending science-based HFR products into societally relevant downstream services to support blue growth in the Mediterranean coastal areas, helping to meet the UN's Decade of Ocean Science for Sustainable Development and the EU's Green Deal goals.

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Section: Short-term Predictionsmentioning

confidence: 99%

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

Reyes

Aguiar

Bendoni³

et al. 2022

Ocean Sci.

Self Cite

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“…The EuskOOS HF radar is part of JERICO-RI and it is operated following JERICO-S3 project best practices, standards, and recommendations (see Solabarrieta et al, 2016;Rubio et al, 2018, for details). Data consist of hourly current fields with a 5 km spatial resolution obtained from using the gap-filling OMA methodology (Kaplan and Lekien, 2007;Solabarrieta et al, 2021). In total, 85 OMA modes, built setting a minimum spatial scale of 20 km and applied to periods with data from the two antennas, were used to provide maximum spatiotemporal continuity in the HF radar current fields, which is a prerequisite of performing accurate Lagrangian simulations.…”

Section: Hf Radar Current Observations and Wind Datamentioning

confidence: 99%

Modelling floating riverine litter in the south-eastern Bay of Biscay: a regional distribution from a seasonal perspective

Ruiz

Rubio²,

Abascal³

et al. 2022

Ocean Sci.

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Abstract. Although rivers contribute to the flux of litter to the marine environment, estimates of riverine litter amounts and detailed studies on floating riverine litter behaviour once it has reached the sea are still scarce. This paper provides an analysis of the seasonal behaviour of floating marine litter released by rivers within the south-eastern Bay of Biscay based on riverine litter characterizations, drifters, and high-frequency radar observations and Lagrangian simulations. Virtual particles were released in the coastal area as a proxy of the floating fraction of riverine litter entering from rivers and reaching the open waters. Particles were parameterized with a wind drag coefficient (Cd) to represent their trajectories and fate according to the buoyancy of the litter items. They were forced with numerical winds and measured currents provided by high-frequency radars covering selected seasonal week-long periods between 2009 and 2021. To gain a better insight into the type and buoyancy of the items, samples collected from a barrier placed at the Deba River (Spain) were characterized at the laboratory. Items were grouped into two categories: low-buoyancy items (objects not exposed to wind forcing, e.g. plastic bags) and highly buoyant items (objects highly exposed to wind forcing, e.g. bottles). Overall, low-buoyancy items encompassed almost 90 % by number and 68 % by weight. Weakly buoyant items were parameterized with Cd = 0 % and highly buoyant items with Cd = 4 %; this latter value is the result of the joint analysis of modelled and observed trajectories of four satellite drifting buoys released at the Adour (France), Deba (Spain), and Oria (Spain) river mouths. Particles parameterized with Cd = 4 % drifted faster towards the coast through the wind, notably during the first 24 h. In summer, over 97 % of particles beached after 1 week of simulation. In autumn this value fell to 54 %. In contrast, low-buoyancy items took longer to arrive at the shoreline, particularly during spring with fewer than 25 % of particles beached by the end of the simulations. The highest concentrations (>200 particles km−1) were recorded during summer for Cd = 4 % in the French region of Pyrénées-Atlantiques. Results showed that the regions in the study area were highly affected by rivers within or nearby the region itself. These results couple observations and a river-by-river modelling approach and can assist decision-makers on setting emergency responses to high fluxes of floating riverine litter and on defining future monitoring strategies for heavily polluted regions within the south-eastern Bay of Biscay.

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“…HFR derived short term predictions were developed by Zelenke (2005), Frolov et al (2012), Barrick et al, (2012), Orfila et al (2015), Solabarrieta et al, (2016), Vilibić et al, (2016), Abascal et al, (2017). More recently, Solabarrieta et al (2021), developed a Lagrangian-based empirical real-time, Short-Term Prediction (L-STP) system in order to provide short term forecasts of up to 48 hours of ocean currents from HFR data.…”

Section: Short Term Predictionsmentioning

confidence: 99%

Coastal HF radars in the Mediterranean: Applications in support of science priorities and societal needs

Reyes

Aguiar

Bendoni³

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

Abstract. The Mediterranean Sea is a prominent climate change hot spot, being their socio-economically vital coastal areas the most vulnerable targets for maritime safety, diverse met-ocean hazards and marine pollution. Providing an unprecedented spatial and temporal resolution at wide coastal areas, High-frequency radars (HFRs) have been steadily gaining recognition as an effective land-based remote sensing technology for a continuous monitoring of the surface circulation, increasingly waves and occasionally winds. HFR measurements have boosted the thorough scientific knowledge of coastal processes, also fostering a broad range of applications, which has promoted their integration in the Coastal Ocean Observing Systems worldwide, with more than half of the European sites located in the Mediterranean coastal areas. In this work, we present a review of existing HFR data multidisciplinary science-based applications in the Mediterranean Sea, primarily focused on meeting end-users and science-driven requirements, addressing regional challenges in three main topics: i) maritime safety; ii) extreme hazards; iii) environmental transport process. Additionally, the HFR observing and monitoring regional capabilities in the Mediterranean region required to underpin the underlying science and the further development of applications are also analyzed. The outcome of this assessment has allowed us to finally provide a set of recommendations for the future improvement prospects to maximize the contribution in extending the science-based HFR products into societal relevant downstream services to support the blue growth in the Mediterranean coastal areas, helping to meet the UN’s Decade of Ocean Science for Sustainable Development and the EU’s Green Deal goals.

show abstract

A new Lagrangian-based short-term prediction methodology for high-frequency (HF) radar currents

Cited by 4 publications

References 60 publications

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

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

Modelling floating riverine litter in the south-eastern Bay of Biscay: a regional distribution from a seasonal perspective

Coastal HF radars in the Mediterranean: Applications in support of science priorities and societal needs

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