Type

Journal Article

Authors

Fr?d?ric Dias
Roxana Tiron
Sarah Gallagher

Subjects

Geology

Topics
irish sea wave energy ocean renewable energy energy levels energy resource wave model wave hindcast high resolution

A long-term nearshore wave hindcast for Ireland: Atlantic and Irish sea coasts (1979-2012). Present wave climate and energy resource assessment. (2014)

Abstract The Northeast Atlantic possesses some of the highest wave energy levels in the world. Recent years have witnessed a renewed interest in harnessing this vast energy potential. Due to the complicated geomorphology of the Irish coast, there can be a significant variation in both the wave and wind climate. Long-term hindcasts with high spatial resolution, properly calibrated against available measurements, provide vital information for future deployments of ocean renewable energy installations. These can aid in the selection of adequate locations for potential deployment and for the planning and design of those marine operations. A 34 year (from 1979 to 2012), high-resolution wave hindcast was performed for Ireland including both Atlantic and Irish Sea coasts, with a particular focus on the wave energy resource. The wave climate was estimated using the third generation spectral wave model WAVEWATCH III version 4.11, the unstructured grid formulation. The wave model was forced with directional wave spectral data and 10m winds from the European Centre for Medium Range Weather Forecasts (ECMWF) ERA-Interim reanalysis, which is available from 1979 to the present. The model was validated against available observed satellite altimeter and buoy data, particularly in the nearshore, and was found to be excellent. A strong spatial and seasonal variability was found for both significant wave heights and the wave energy flux, particularly on the north and west coasts. A strong correlation between the NAO teleconnection pattern and wave heights, wave periods and peak direction in winter and also, to a lesser extent, in spring was identified.
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Full list of authors on original publication

Fr?d?ric Dias, Roxana Tiron, Sarah Gallagher

Experts in our system

1
Fr?d?ric Dias
Trinity College Dublin
Total Publications: 19
 
2
Roxana Tiron
Trinity College Dublin
Total Publications: 5
 
3
Sarah Gallagher
Trinity College Dublin
Total Publications: 14