Seasonal Variability of Wind Sea and Swell Waves Climate along the Canary Current: The Local Wind Effect

A climatology of wind sea and swell waves along the Canary eastern boundary current area, from west Iberia to Mauritania, is presented. The study is based on the European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis ERA-Interim. The wind regime along the Canary Current, along west Ib...

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Bibliographic Details
Published in:Journal of Marine Science and Engineering
Main Author: Alvaro Semedo
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2018
Subjects:
Online Access:https://doi.org/10.3390/jmse6010028
https://doaj.org/article/a756e5d00a474fbfa752532746353491
Description
Summary:A climatology of wind sea and swell waves along the Canary eastern boundary current area, from west Iberia to Mauritania, is presented. The study is based on the European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis ERA-Interim. The wind regime along the Canary Current, along west Iberia and north-west Africa, varies significantly from winter to summer. High summer wind speeds generate high wind sea waves, particularly along the coasts of Morocco and Western Sahara. Lower winter wind speeds, along with stronger extratropical storms crossing the North Atlantic sub-basin up north lead to a predominance of swell waves in the area during from December to February. In summer, the coast parallel wind interacts with the coastal headlands, increasing the wind speed and the locally generated waves. The spatial patterns of the wind sea or swell regional wave fields are shown to be different from the open ocean, due to coastal geometry, fetch dimensions, and island sheltering.