Short duration rainfall extremes in Ireland: influence of climatic variability

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dc.contributor.author Leahy, Paul G.
dc.contributor.author Kiely, Gerard
dc.date.accessioned 2012-09-18T11:42:34Z
dc.date.available 2012-09-18T11:42:34Z
dc.date.copyright 2010
dc.date.issued 2011-02
dc.identifier.citation LEAHY, P.G. & KIELY, G. 2011. Short Duration Rainfall Extremes in Ireland: Influence of Climatic Variability. Water Resources Management, 25(3), 987-1003. doi: http://dx.doi.org/10.1007/s11269-010-9737-2 en
dc.identifier.volume 25 en
dc.identifier.issued 3 en
dc.identifier.startpage 987 en
dc.identifier.endpage 1003 en
dc.identifier.issn 0920-4741
dc.identifier.issn 1573-1650
dc.identifier.uri http://hdl.handle.net/10468/710
dc.identifier.doi 10.1007/s11269-010-9737-2
dc.description.abstract A widely-noted change in the North Atlantic circulation in the 1970s affected the spatial distribution and seasonal pattern of rainfall over Ireland. To examine if this was accompanied by a change on short duration precipitation extremes, multi-decadal time series from the second half of the twentieth century of thirteen hourly precipitation stations in Ireland have been analysed for the occurrence of extreme values over several durations of up to 24 h. Strong evidence was found for a change since the late 1970s in short duration rainfall depths, particularly in the west of the country. Precipitation depth-duration-frequency analyses over two sub-periods showed that at several locations, storm event magnitudes which corresponded to a 30 year return period before 1975 had a return period close to 10 years in the post-1975 period. The widespread increase in spring and autumn rainfall and the local increases in the frequencies and magnitudes of severe rainfalls have implications for engineering hydrology, flood risk analysis and water resources management. The necessity of using up-to-date data to derive design storm magnitudes is stressed, due to the possible influence of underlying climatic shifts. Furthermore, as non-stationarity has been demonstrated, the use of long timeseries extending beyond thirty years into the past will result in underestimation of storm intensities in many areas. en
dc.description.sponsorship Science Foundation Ireland (Stokes Lectureship programme); Environmental Protection Agency (STRIVE programme Extreme Weather, Climatic Shifts & Natural Disasters in Ireland, grant number 2007/CCRP/2.7) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Springer Netherlands for European Water Resources Association en
dc.rights Copyright © 2010, Springer Science+Business Media B.V. The final publication is available at www.springerlink.com en
dc.subject Precipitation extremes en
dc.subject Climate en
dc.subject Nonstationarity en
dc.subject Depth-duration-frequency en
dc.subject North Atlantic oscillation en
dc.title Short duration rainfall extremes in Ireland: influence of climatic variability en
dc.type Article (peer-reviewed) en
dc.internal.authorurl http://research.ucc.ie/profiles/D012/paulleahy en
dc.internal.authorurl http://research.ucc.ie/profiles/D012/gkiely en
dc.internal.authorcontactother Paul Leahy, Civil Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: paul.leahy@ucc.ie en
dc.internal.authorcontactother Gerard Kiely, Civil Engineering, University College Cork, Cork, Ireland. +353-21-490-3000 Email: g.kiely@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2012-09-17T12:40:03Z
dc.description.version Accepted Version en
dc.internal.rssid 66629985
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Environmental Protection Agency en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Water Resources Management en
dc.internal.copyrightchecked No en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress paul.leahy@ucc.ie en


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