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Volume 15 | Copyright
Adv. Sci. Res., 15, 137-143, 2018
https://doi.org/10.5194/asr-15-137-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  11 Jul 2018

11 Jul 2018

Description of a coastal impact event in Basque Country: the 9 February 2016 case

Santiago Gaztelumendi1,2, Joseba Egaña1,2, Pedro Liria3, and José A. Aranda1,4 Santiago Gaztelumendi et al.
  • 1Basque Meteorology Agency (EUSKALMET), Basque Country, Spain
  • 2Meteorology Area, Energy and Environment Division, TECNALIA R & I, Basque Country, Spain
  • 3Marine Technologies Area, AZTI-Tecnalia, Basque Country, Spain
  • 4Emergencies and Meteorology Directorate, Security Department, Basque Government, Basque Country, Spain

Abstract. In this work we analysed a case from 9 February 2016 from two points of view, the meteorological–ocean characteristics of the event and the damage produced during the episode in the Basque coastal area. On 7 and 8 February 2016 an intense zonal circulation was established in the Atlantic, with very strong westerly winds (over 100kmh−1) and high fetch (more than 2000km). As a consequence a strong swell (over 7m) arrived on the Basque coast affecting littoral areas. The wave characteristics are particularly energetic during the morning of the 9 February, which had a significant wave of 9.5m and a peak period of 20s in deep water (Donostia buoy). The arrival of these energetic waves coincides with high tide during spring when the sea level reaches 4.69m in the Port of Bilbao. Overtopping indexes exceeded red-level thresholds established within the Euskalmet coastal warning system and the wave impact resulted in relevant damage (more than EUR3million) in different littoral areas. This event is the first red-level case since the new Euskalmet warning procedure became operational at the beginning of 2015.

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