Implementation and validation of the ISMAR High Frequency Coastal Radar Network in the Gulf of Manfredonia (Mediterranean Sea)

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  • Lorenzo Corgnati, National Research Council (CNR)
  • ,
  • Carlo Mantovani, National Research Council (CNR)
  • ,
  • Annalisa Griffa, National Research Council (CNR)
  • ,
  • Maristella Berta, National Research Council (CNR)
  • ,
  • Pierluigi Penna, National Research Council (CNR)
  • ,
  • Paolo Celentano, Università degli Studi di Napoli Parthenope and CoNISMa
  • ,
  • Lucio Bellomo, Univ Toulon & Var, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Developpement (IRD), Aix-Marseille Universite, Aix Marseille Univ, CNRS, IRD,MIO
  • ,
  • Daniel Frazier Carlson
  • Raffaele D'Adamo, National Research Council (CNR), Italien
In this paper a High Frequency (HF) Coastal Radar Network is described, established and maintained by the Institute of Marine Sciences (ISMAR) of the National Research Council of Italy (CNR) for the measurement of surface current velocities in the Gulf of Manfredonia, located in the semi-enclosed Adriatic Sea (Mediterranean Sea), during the period 2013-2015. The network consisted of four HF radars that provided hourly sea surface velocity data in real-time mode in a netCDF format compliant to the Climate and Forecast Metadata Conventions CF-1.6 and to the INSPIRE directive. The hourly netCDF files are disseminated via a THREDDS catalog supporting OGC compliant distributions and protocols for data visualization, metadata interrogation and data download. HF radar velocity data were validated using in situ velocity measurements by GPS-tracked surface drifters deployed within the radar footprint. The results show a good agreement, with the root mean square (rms) of the difference between radial velocities from HF radar and drifters ranging between 20% - 50% of the drifter velocity rms. The HF radar data have also been compared with subsurface velocity profiles from an upward looking Acoustic Doppler Current Profiler (ADCP) during winter 2015, in order to gain information on the correlation between surface and water column velocities. This information is especially relevant for fishery and coastal management applications, where transport of larvae, sediments and pollutants in the water columns are considered. Results show that, at least in the considered period, the velocity in the water column is well correlated, and there is a good agreement between surface HF radar and ADCP data (correlations between 0.95 - 0.75). The Gulf of Manfredonia network has been instrumental to the set up of a core of Quality Control practices and interoperable data and metadata formats that have been subsequently used within the Italian RITMARE network and that are presently discussed and refined at the European level through the projects Jerico-NEXT and INCREASE.
TidsskriftIEEE Journal of Oceanic Engineering
Sider (fra-til)424-445
Antal sider22
StatusUdgivet - apr. 2019

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