Show simple item record

dc.contributor.authorGleeson, Emily
dc.contributor.authorClancy, Colm
dc.contributor.authorZubiate, Laura
dc.contributor.authorJanjić, Jelena
dc.contributor.authorGallagher, Sarah
dc.contributor.authorDias, Frédéric
dc.date.accessioned2019-04-10T15:56:05Z
dc.date.available2019-04-10T15:56:05Z
dc.date.issued2019-03-22
dc.identifier.citationEmily Gleeson, Colm Clancy, Laura Zubiate, Jelena Janjić, Sarah Gallagher, Frédéric Dias, 'Teleconnections and Extreme Ocean States in the Northeast Atlantic Ocean', [journal], 2019-03-22, Advances in Science & Research, 16, 2019en
dc.identifier.urihttp://hdl.handle.net/2262/86149
dc.description.abstractThe Northeast Atlantic possesses an energetic and variable wind and wave climate which has a large potential for renewable energy extraction; for example along the western seaboards off Ireland. The role of surface winds in the generation of ocean waves means that global atmospheric circulation patterns and wave climate characteristics are inherently connected. In quantifying how the wave and wind climate of this region may change towards the end of the century due to climate change, it is useful to investigate the influence of large scale atmospheric oscillations using indices such as the North Atlantic Oscillation (NAO), the East Atlantic pattern (EA) and the Scandinavian pattern (SCAND). In this study a statistical analysis of these teleconnections was carried out using an ensemble of EC-Earth global climate simulations run under the RCP4.5 and RCP8.5 forcing scenarios, where EC-Earth is a European-developed atmosphere ocean sea-ice coupled climate model. In addition, EC-Earth model fields were used to drive theWAVEWATCH III wave model over the North Atlantic basin to create the highest resolution wave projection dataset currently available for Ireland. Using this dataset we analysed the correlations between teleconnections and significant wave heights (Hs) with a particular focus on extreme ocean states using a range of statistical methods. The strongest, statistically significant correlations exist between the 95th percentile of significant wave height and the NAO. Correlations between extreme Hs and the EA and SCAND are weaker and not statistically significant over parts of the North Atlantic. When the NAO is in its positive phase (NAOC) and the EA and SCAND are in a negative phase (EA-, SCAND-) the strongest effects are seen on 20-year return levels of extreme ocean waves. Under RCP8.5 there are large areas around Ireland where the 20-year return level of Hs increases by the end of the century, despite an overall decreasing trend in mean wind speeds and hence mean Hs. Adv. Sci. Res., 16, 11–29, 2019 https://doi.org/10.5194/asr-16-11-2019 © Author(s) 2019. This work is distributed under the Creative Commons Attribution 4.0 License.en
dc.language.isoenen
dc.rightsYen
dc.subjectAtlantic Oceanen
dc.subjectOcean statesen
dc.subjectTeleconnectionsen
dc.subjectRenewable energyen
dc.subjectWave climateen
dc.subjectWind climateen
dc.titleTeleconnections and Extreme Ocean States in the Northeast Atlantic Oceanen
dc.typejournalen
dc.contributor.sponsorMet Éireannen
dc.type.supercollectionedepositireland
dc.publisher.placeirelanden
dc.identifier.doihttps://doi.org/10.5194/asr-16-11-2019
dc.rights.ecaccessrightsopenAccess
dc.relation.ispartofseriesdate2019en
dc.relation.ispartofseriestitleAdvances in Science & Researchen
dc.relation.ispartofseriesvolume16en


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record