RECENT RAPID SEA LEVEL RISE IN DUBLIN BAY BASED ON TIDE GAUGE ANALYSIS

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Authors

Amin Shoari Nejad, Andrew Parnell, Alice Greene, Brian P Kelleher, Gerard McCarthy

Abstract

We analysed tide gauges at Dublin port and its environs over the period 1938-2018. With three different tide gauges in the vicinity of the main Dublin port gauge, we merged the data sets and validated them against each other. The recordings of all four tide gauges were found to be in good agreement between 2003-2015, though this was markedly less so from 2016 to the present. We estimate the sea level rise in Dublin port for this period at 10 mm yr-1. The rate over the longer period of 1938-2015 was 1.67 mm yr-1 which is in good agreement with the global average. We found that the rate of sea level rise in Dublin is cyclic with some extreme upward and downward trends. However, starting around 1980, Dublin has seen significantly higher rates that have been always positive since 1996. Furthermore, our analysis of the tide gauges indicates an increase in sea level variability since 1980. Both decadal rates and continuous in time rates are calculated and provided in this paper.

DOI

https://doi.org/10.31223/osf.io/z9hk2

Subjects

Applied Statistics, Climate, Earth Sciences, Life Sciences, Oceanography and Atmospheric Sciences and Meteorology, Other Earth Sciences, Other Life Sciences, Physical Sciences and Mathematics, Planetary Sciences, Statistics and Probability

Keywords

dublin sea level, ireland sea level, seal level rise, tide gauge

Dates

Published: 2020-05-27 23:21

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License

GNU Lesser General Public License (LGPL) 2.1

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