A New Strategic Wave Measurement Station Off Naples Port Main Breakwater

Centurioni, Luca; Braasch, Lance; Lauro, Enrico Di; Contestabile, Pasquale; Leo, Francesco De; Casotti, Raffaella; Franco, Leopoldo; Vicinanza, Diego

doi:10.9753/icce.v35.waves.36

Cited by 26 publications

(24 citation statements)

References 26 publications

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“…Moored buoys use heave-pitch-roll sensors, accelerometers, or displacement sensors to measure orthogonal components of some combination of the surface wave kinematics, and they invert these data for the first five directional moments at each frequency (Longuet-Higgins et al, 1963), which can be used to obtain an estimate of the wave directional spectrum using statistical methods (e.g., Lygre and Krogstad, 1986). To eliminate the cost and effort of maintaining moored buoys, a growing number of small-form-factor, easily deployable surface drifters (Veeramony et al, 2014;Centurioni et al, 2017) with high fidelity wave measurements have been developed for remote and under-sampled regions of the global ocean.…”

Section: Wave Buoys and Wave-enabled Drifting Buoysmentioning

confidence: 99%

Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade

et al. 2019

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Ocean surface winds, currents, and waves play a crucial role in exchanges of momentum, energy, heat, freshwater, gases, and other tracers between the ocean, atmosphere, and ice. Despite surface waves being strongly coupled to the upper ocean circulation and the overlying atmosphere, efforts to improve ocean, atmospheric, and wave observations and models have evolved somewhat independently. From an observational point of view, community efforts to bridge this gap have led to proposals for satellite Doppler oceanography mission concepts, which could provide unprecedented measurements of absolute surface velocity and directional wave spectrum at global scales. This paper reviews the present state of observations of surface winds, currents, and waves, and it outlines observational gaps that limit our current understanding of coupled processes that happen at the air-sea-ice interface. A significant challenge for the coming decade of wind, current, and wave observations will come in combining and interpreting measurements from (a) wave-buoys and high-frequency radars in coastal regions, (b) surface drifters and wave-enabled drifters in the open-ocean, marginal ice zones, and wave-current interaction "hot-spots," and (c) simultaneous measurements of absolute surface currents, ocean surface wind vector, and directional wave spectrum from Doppler satellite sensors.

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Section: Wave Buoys and Wave-enabled Drifting Buoysmentioning

confidence: 99%

Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade

et al. 2019

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“…During the Atlantic hurricane season, for example, Surface Velocity Program (SVP), Surface Velocity Program Barometer (SVPB) and Autonomous Drifting Ocean Station drifters (Centurioni, 2010; see also Centurioni, 2018, for a complete description of the drifter technology) are often airdeployed in front of TCs that may impact the US mainland. New drifters capable of measuring the directional wave spectra of surface gravity waves, termed Directional Wave Spectra Drifters (Centurioni et al, 2016(Centurioni et al, , 2019 have also been deployed ahead of TCs. Successful deployments of various drifters have been carried out in the Atlantic Ocean during the following TCs: Fabian (2003) (2010).…”

Section: Surface Driftersmentioning

confidence: 99%

Ocean Observations in Support of Studies and Forecasts of Tropical and Extratropical Cyclones

et al. 2019

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Over the past decade, measurements from the climate-oriented ocean observing system have been key to advancing the understanding of extreme weather events that originate and intensify over the ocean, such as tropical cyclones (TCs) and extratropical bomb cyclones (ECs). In order to foster further advancements to predict and better understand these extreme weather events, a need for a dedicated observing system component specifically to support studies and forecasts of TCs and ECs has been identified, but such a system has not yet been implemented. New technologies, pilot networks, targeted deployments of instruments, and state-of-the art coupled numerical models have enabled advances in research and forecast capabilities and illustrate a potential framework for future development. Here, applications and key results made possible by the different ocean observing efforts in support of studies and forecasts of TCs and ECs, as well as recent advances in observing technologies and strategies are reviewed. Then a vision and specific recommendations for the next decade are discussed.

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“…Unlike promising new developments with wave drifters (Centurioni et al, 2016), the HRSST-2 drifters did not provide any information about sea-state. Such information can be obtained however by co-locating with the ERA5 reanalysis (Hersbach and Dee, 2016).…”

Section: Hrsst-2 Svp-bs Data Record Revisitedmentioning

confidence: 94%

The Copernicus Surface Velocity Platform drifter with Barometer and Reference Sensor for Temperature (SVP-BRST): Genesis, design, and initial results

Poli¹,

Lucas²,

O’Carroll³

et al. 2018

Preprint

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Abstract. To support calibration and validation of satellite Sea-Surface Temperature (SST) retrievals, over 60 High Resolution SST (HRSST) drifting buoys were deployed at sea between 2012 and 2017. Their data record is reviewed here. It is confirmed that sea-state and immersion depth play an important role in understanding the data collected by such buoys and that the SST sensors need adequate insulation. In addition, calibration verification of three recovered drifters suggests that the sensor drift is low, albeit negative at around −0.01 K/year. However, the statistical significance of these results is limited, and the calibration procedure could not be exactly reproduced, introducing additional uncertainties into this drift assessment. Based on lessons learnt from these initial buoys, a new-generation drifter was designed to serve calibration of SST retrievals by European Union's Copernicus satellites. The novel drifter includes an HRSST sensor calibrated by a metrology laboratory. The sensor includes a pressure probe to monitor immersion depth in calm water, and acquires SST data at 1 Hz over a 5-minute interval every hour. This enables the derivation of mean SST as well as several percentiles of the SST distribution. The HRSST sensor is calibrated with an uncertainty better than 0.01 K. Analysis of the data collected by two prototypes deployed in the Mediterranean Sea shows that the buoys are able to capture small-scale SST variations. These variations are found to be smaller when the sea-state is well-mixed, and when the buoys are located within eddy cores. This affects the drifter SST data representativeness, which is an aspect of importance for optimal use of these data.

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A New Strategic Wave Measurement Station Off Naples Port Main Breakwater

Cited by 26 publications

References 26 publications

Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade

Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade

Ocean Observations in Support of Studies and Forecasts of Tropical and Extratropical Cyclones

The Copernicus Surface Velocity Platform drifter with Barometer and Reference Sensor for Temperature (SVP-BRST): Genesis, design, and initial results

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