Short duration rainfall extremes in Ireland: influence of climatic variability
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 twentie...
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ftunivcollcork:oai:cora.ucc.ie:10468/710 2023-08-27T04:10:49+02:00 Short duration rainfall extremes in Ireland: influence of climatic variability Leahy, Paul G. Kiely, Gerard 2010 application/pdf http://hdl.handle.net/10468/710 https://doi.org/10.1007/s11269-010-9737-2 en eng Springer Netherlands for European Water Resources Association 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 doi:10.1007/s11269-010-9737-2 1003 0920-4741 1573-1650 3 Water Resources Management 987 http://hdl.handle.net/10468/710 25 Copyright © 2010, Springer Science+Business Media B.V. The final publication is available at www.springerlink.com Precipitation extremes Climate Nonstationarity Depth-duration-frequency North Atlantic oscillation Article (peer-reviewed) 2010 ftunivcollcork https://doi.org/10.1007/s11269-010-9737-2 2023-08-06T14:30:12Z 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. Article in Journal/Newspaper North Atlantic North Atlantic oscillation University College Cork, Ireland: Cork Open Research Archive (CORA) Water Resources Management 25 3 987 1003 |
institution |
Open Polar |
collection |
University College Cork, Ireland: Cork Open Research Archive (CORA) |
op_collection_id |
ftunivcollcork |
language |
English |
topic |
Precipitation extremes Climate Nonstationarity Depth-duration-frequency North Atlantic oscillation |
spellingShingle |
Precipitation extremes Climate Nonstationarity Depth-duration-frequency North Atlantic oscillation Leahy, Paul G. Kiely, Gerard Short duration rainfall extremes in Ireland: influence of climatic variability |
topic_facet |
Precipitation extremes Climate Nonstationarity Depth-duration-frequency North Atlantic oscillation |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Leahy, Paul G. Kiely, Gerard |
author_facet |
Leahy, Paul G. Kiely, Gerard |
author_sort |
Leahy, Paul G. |
title |
Short duration rainfall extremes in Ireland: influence of climatic variability |
title_short |
Short duration rainfall extremes in Ireland: influence of climatic variability |
title_full |
Short duration rainfall extremes in Ireland: influence of climatic variability |
title_fullStr |
Short duration rainfall extremes in Ireland: influence of climatic variability |
title_full_unstemmed |
Short duration rainfall extremes in Ireland: influence of climatic variability |
title_sort |
short duration rainfall extremes in ireland: influence of climatic variability |
publisher |
Springer Netherlands for European Water Resources Association |
publishDate |
2010 |
url |
http://hdl.handle.net/10468/710 https://doi.org/10.1007/s11269-010-9737-2 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
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 doi:10.1007/s11269-010-9737-2 1003 0920-4741 1573-1650 3 Water Resources Management 987 http://hdl.handle.net/10468/710 25 |
op_rights |
Copyright © 2010, Springer Science+Business Media B.V. The final publication is available at www.springerlink.com |
op_doi |
https://doi.org/10.1007/s11269-010-9737-2 |
container_title |
Water Resources Management |
container_volume |
25 |
container_issue |
3 |
container_start_page |
987 |
op_container_end_page |
1003 |
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1775353131102633984 |