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Title: A cyclone climatology of the British-Irish Isles 1871-2012
Authors: Matthews, Tom K.R.
Murphy, Conor
Wilby, Robert L.
Harrigan, Shaun
Keywords: Cyclone
20th Century reanalysis
North Atlantic storm track
North Atlantic oscillation
British-Irish Isles precipitation
Issue Date: 2015
Publisher: Wiley / © Royal Meteorological Society
Citation: MATTHEWS, T.K.R. ... et al, 2015. A cyclone climatology of the British-Irish Isles 1871-2012. International Journal of Climatology, 36(3), pp. 1299–1312.
Abstract: The British-Irish Isles (BI) lie beneath the North Atlantic storm track year-round and thus are impacted by the passage of extra-tropical cyclones. Given recent extreme storminess and projections of enhanced winter cyclone activity for this region, there is much interest in assessing the extent to which the cyclone climate of the region may be changing. We address this by assessing a 142-year (1871-2012) record of cyclone frequency, intensity and 'storminess' derived from the 20th Century Reanalysis V2 (20CR) dataset. We also use this long-term record to examine associations between cyclone activity and regional hydroclimate. Our results confirm the importance of cyclone frequency in driving seasonal precipitation totals which we find to be greatest during summer months. Cyclone frequency and storminess are characterized by pronounced interannual and multi-decadal variability which are strongly coupled to atmospheric blocking in the Euro-Atlantic region, but we detect no evidence of an increasing trend. We observe an upward trend in cyclone intensity for the BI region, which is strongest in winter and consistent with model projections, but promote caution interpreting this given the changing data quality in the 20CR over time. Nonetheless, we assert that long-term reconstruction is helpful for contextualizing recent storminess and for identifying emerging changes in regional hydroclimate linked to cyclones.
Description: This is the peer reviewed version of the following article: MATTHEWS, T.K.R. ... et al, 2015. A cyclone climatology of the British-Irish Isles 1871-2012. International Journal of Climatology, 36(3), pp. 1299–1312., which has been published in final form at http://dx.doi.org/10.1002/joc.4425. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Version: Accepted for publication
DOI: 10.1002/joc.4425
URI: https://dspace.lboro.ac.uk/2134/18342
Publisher Link: http://dx.doi.org/10.1002/joc.4425
ISSN: 0899-8418
Appears in Collections:Published Articles (Geography and Environment)

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