Loughborough University
Leicestershire, UK
LE11 3TU
+44 (0)1509 263171
Loughborough University

Loughborough University Institutional Repository

Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/19032

Title: Homogenisation and analysis of an expanded monthly rainfall network for the Island of Ireland (1850-2010)
Authors: Noone, Simon
Murphy, Conor
Coll, J.
Matthews, Tom K.R.
Mullan, Donal
Wilby, Robert L.
Walsh, Seamus
Keywords: Homogenisation
HOMER
Precipitation
Island of Ireland
Metadata
Trend
Issue Date: 2016
Publisher: Wiley (© 2015 Royal Meteorological Society)
Citation: NOONE, S. ... et al, 2016. Homogenisation and analysis of an expanded monthly rainfall network for the Island of Ireland (1850-2010). International Journal of Climatology, doi: 10.1002/joc.4522
Abstract: Long-term precipitation series are critical for understanding emerging changes to the hydrological cycle. To this end we construct a homogenised Island of Ireland Precipitation (IIP) network comprising 25 stations and a composite series covering the period 1850-2010, providing the secondlongest regional precipitation archive in the British-Irish Isles. We expand the existing catalogue of long-term precipitation records for the island by recovering archived data for an additional eight stations. Following bridging and updating of stations HOMER homogenisation software is used to detect breaks using pairwise and joint detection. Twenty-five breakpoints are detected across 14 stations, and the majority (20) are corroborated by metadata. Assessment of variability and change in homogenised and extended precipitation records reveal positive (winter) and negative (summer) trends. Trends in records covering the typical period of digitisation (1941 onwards) are not always representative of longer records. Furthermore, trends in post-homogenisation series change magnitude and even direction at some stations. While cautionary flags are raised for some series, confidence in the derived network is high given attention paid to metadata, coherence of behaviour across the network and consistency of findings with other long-term climatic series such as England and Wales precipitation. As far as we are aware, this work represents the first application of HOMER to a longterm precipitation network and bodes well for use in other regions. It is expected that the homogenised IIP network will find wider utility in benchmarking and supporting climate services across the Island of Ireland, a sentinel location in the North Atlantic.
Description: This paper is closed access until 5th October 2016.
Sponsor: CM/TM and JC/SW acknowledge funding provided by the Irish Environmental Protection Agency under projects 2014-CCRP-MS.16 and 2012-CCRP-FS.11 respectively.
Version: Accepted for publication
DOI: 10.1002/joc.4522
URI: https://dspace.lboro.ac.uk/2134/19032
Publisher Link: http://dx.doi.org/10.1002/joc.4522
ISSN: 0899-8418
Appears in Collections:Closed Access (Geography)

Files associated with this item:

File Description SizeFormat
Noone et al 2015 IJC - homogenized rainfall series for the Island of Ireland.pdfAccepted version2.62 MBAdobe PDFView/Open

 

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.