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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rubio, A. Solabarrieta, L. Gonzalez, M. Mader, J. Castanedo, S. Medina, R. Charria, G. Aranda, J.A. |
| Copyright Year | 2013 |
| Description | Author affiliation: Marine Dynamics & Operational Oceanogr. group, AZTI-TECNALIA, Pasaia, Spain (Rubio, A.; Solabarrieta, L.; Gonzalez, M.; Mader, J.) || Inst. de Hidraulica Ambiental, IH Cantabria, Santander, Spain (Castanedo, S.; Medina, R.) || Directorate of Emergency Attention & Meteorol. (Euskalmet), Basque Gov., Gasteiz, Spain (Aranda, J.A.) || Dyneco, Ifremer, Plouzane, France (Charria, G.) |
| Abstract | Two HF Radar CODAR SeaSonde stations are working operationally in the south-eastern Bay of Biscay since 2009 (Fig. 1). The HF radar stations are emitting at a central frequency of 4.86 MHz and provide hourly surface currents with 5 km radial and 5° angular resolutions and a 150 km mean radial coverage. The examination of 3 year HF radar data reveals a well-defined seasonal variability of sea surface currents and the circulation along the slope in the area. In this contribution different Lagrangian exercises have been performed to evaluate the skills of the HF radar system to reproduce the drifter trajectories available in the study area at different periods. The mean distance observed between real and radar derived trajectories after 6 hours of simulation is of 4.6 km. Moreover, a description of the surface circulation in the area from a Lagrangian point of view is provided, with regard to the variability observed at different time-space scales. In addition to a well-defined seasonality, the presence of mesoscale cyclonic and anticyclonic eddies is recurrent in the area covered by the HF radar. Mesoscale variability is observed to have a substantial impact on the Lagrangian transport in the area. |
| Starting Page | 1 |
| Ending Page | 7 |
| File Size | 1961588 |
| Page Count | 7 |
| File Format | |
| e-ISBN | 9781479900015 |
| DOI | 10.1109/OCEANS-Bergen.2013.6608039 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2013-06-10 |
| Publisher Place | Norway |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radar Trajectory Sea surface Ocean temperature Sea measurements Data models mesoscale and seasonal variability of surface currents HF radar surface ocean circulation Lagrangian transport drifting buoys Lagrangian residual currents |
| Content Type | Text |
| Resource Type | Article |
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