Comparing tide gauge observations to regional patterns of sea-level change (1961–2003)
Slangen, A.B.A.; van de Wal, R.S.W.; Wada, Y.; Vermeersen, L.L.A. (2014). Comparing tide gauge observations to regional patterns of sea-level change (1961–2003). Earth System Dynamics 5: 243-255. http://dx.doi.org/10.5194/esd-5-243-2014
In: Earth System Dynamics. Copernicus: Göttingen. ISSN 2190-4979; e-ISSN 2190-4987, more
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| Authors | | Top |
- Slangen, A.B.A.
- van de Wal, R.S.W.
- Wada, Y.
- Vermeersen, L.L.A., more
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| Abstract |
Although the global mean sea-level budget for the20th century can now be closed, the understanding of sealevelchange on a regional scale is still limited. In this studywe compare observations from tide gauges to regional patternsfrom various contributions to sea-level change to seehow much of the regional measurements can be explained.Processes that are included are land ice mass changes andterrestrial storage changes with associated gravitational, rotationaland deformational effects, steric/dynamic changes,atmospheric pressure loading and glacial isostatic adjustment(GIA). The study focuses on the mean linear trend of regionalsea-level rise between 1961 and 2003. It is found that on aregional level the explained variance of the observed trendis 0.87 with a regression coefficient of 1.07. The observationsand models overlap within the 1 uncertainty range inall regions. The main processes explaining the variability inthe observations appear to be the steric/dynamic componentand the GIA. Local observations prove to be more difficultto explain because they show larger spatial variations, andtherefore require more information on small-scale processes. |
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