Article (Scientific journals)
Trends in UK Mean Sea Level revisited
Woodworth, P.; Teferle, Felix Norman; Bingley, R. M. et al.
2009In Geophysical Journal International, 179 (179), p. 19-30
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Keywords :
Sea Level Change; Global Change from Geodesy; Atlantic Ocean
Abstract :
[en] This paper presents estimates of rates of mean sea level (MSL) change around the UK based on a larger tide gauge data set and more accurate analysis methods than have been employed so far. The spatial variation of the trend in MSL is found to be similar to that inferred from geological information and from advanced geodetic techniques, which is a similar conclusion to that arrived at in previous, less precise and complete studies. The tide gauge MSL trends for 1901 onwards are estimated to be 1.4 +/- 0.2 mm/year larger than those inferred from geology or geodetic methods, suggesting a regional sea level rise of climate change origin several 1/10s mm/year lower than global estimates for the 20th century. However, UK MSL change cannot be described in terms of a simple linear increase alone but includes variations on interannual and decadal timescales. The possible sources of variation in a ‘UK sea level index’ are explored. Air pressure is clearly one such possible source but its direct local forcing through the ‘inverse barometer’ accounts for only one third of the observed variability. A number of larger scale atmospheric and ocean processes must also play important roles, but modelling them satisfactorily and separating the individual contributions presents a major challenge. As regards future regional UK sea level changes, one concludes that there is no basis for major modification to existing projections for the 2080s included in the 2002 UK Climate Impacts Programme studies.
Disciplines :
Earth sciences & physical geography
Identifiers :
UNILU:UL-ARTICLE-2010-424
Author, co-author :
Woodworth, P.;  Proudman Oceanographic Laboratory
Teferle, Felix Norman ;  University of Nottingham > Institute of Engineering Surveying and Space Geodesy
Bingley, R. M.;  University of Nottingham > Institute of Engineering Surveying and Space Geodesy
Shennan, I.;  Durham University > Department of Geography
Williams, S. D. P.;  Proudman Oceanographic Laboratory
Language :
English
Title :
Trends in UK Mean Sea Level revisited
Publication date :
2009
Journal title :
Geophysical Journal International
ISSN :
0956-540X
Publisher :
Blackwell Publishing
Volume :
179
Issue :
179
Pages :
19-30
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 31 October 2013

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