Ocean Science
Ocean Science
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Articles | Volume 18, issue 1
Articles | Volume 18, issue 1
https://doi.org/10.5194/os-18-109-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-18-109-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 1
Research article
 | 
21 Jan 2022
Research article |  | 21 Jan 2022

Components of 21 years (1995–2015) of absolute sea level trends in the Arctic

Carsten Bjerre Ludwigsen, Ole Baltazar Andersen, and Stine Kildegaard Rose

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Andersen, O., Knudsen, P., and Stenseng, L.: A New DTU18 MSS Mean Sea Surface – Improvement from SAR Altimetry, 25 years of progress in radar altimetry symposium, Ponta Delgada, São Miguel Island, Azores Archipelago, Portugal, 24 to 29 September 2018, p. 172, 2018. a
Armitage, T. W. K., Bacon, S., Ridout, A. L., Thomas, S. F., Aksenov, Y., and Wingham, D. J.: Arctic sea surface height variability and change from satellite radar altimetry and GRACE, 2003–2014, J. Geophys. Res.-Oceans, 121, 4303–4322, https://doi.org/10.1002/2015JC011579, 2016. a, b, c, d, e, f, g, h, i, j, k, l, m, n, o
Armitage, T. W. K., Bacon, S., and Kwok, R.: Arctic Sea Level and Surface Circulation Response to the Arctic Oscillation, Geophys. Res. Lett., 45, 6576–6584, https://doi.org/10.1029/2018GL078386, 2018. a, b, c
Bamber, J. and Riva, R.: The sea level fingerprint of recent ice mass fluxes, The Cryosphere, 4, 621–627, https://doi.org/10.5194/tc-4-621-2010, 2010. a
Behrendt, A., Sumata, H., Rabe, B., and Schauer, U.: UDASH – Unified Database for Arctic and Subarctic Hydrography, Earth Syst. Sci. Data, 10, 1119–1138, https://doi.org/10.5194/essd-10-1119-2018, 2018. a
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This study uses a novel satellite-independent approach to quantify the components of Arctic sea level change. The 21-year time series allows studying climate-related changes in Arctic sea level. The decomposition shows that fresh water is governing sea level change, while Arctic land ice loss contributes to a small Arctic sea level rise. The reconstruction yields good agreement with sea level observations from altimetry, despite both datasets being challenged by the harsh environment.
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Towards an integrated Arctic observation system to fill gaps...