Climatic Change

, Volume 124, Issue 1–2, pp 317–332

Projecting twenty-first century regional sea-level changes

  • A. B. A. Slangen
  • M. Carson
  • C. A. Katsman
  • R. S. W. van de Wal
  • A. Köhl
  • L. L. A. Vermeersen
  • D. Stammer
Article

DOI: 10.1007/s10584-014-1080-9

Cite this article as:
Slangen, A.B.A., Carson, M., Katsman, C.A. et al. Climatic Change (2014) 124: 317. doi:10.1007/s10584-014-1080-9

Abstract

We present regional sea-level projections and associated uncertainty estimates for the end of the 21st century. We show regional projections of sea-level change resulting from changing ocean circulation, increased heat uptake and atmospheric pressure in CMIP5 climate models. These are combined with model- and observation-based regional contributions of land ice, groundwater depletion and glacial isostatic adjustment, including gravitational effects due to mass redistribution. A moderate and a warmer climate change scenario are considered, yielding a global mean sea-level rise of 0.54 ±0.19 m and 0.71 ±0.28 m respectively (mean ±1σ). Regionally however, changes reach up to 30 % higher in coastal regions along the North Atlantic Ocean and along the Antarctic Circumpolar Current, and up to 20 % higher in the subtropical and equatorial regions, confirming patterns found in previous studies. Only 50 % of the global mean value is projected for the subpolar North Atlantic Ocean, the Arctic Ocean and off the western Antarctic coast. Uncertainty estimates for each component demonstrate that the land ice contribution dominates the total uncertainty.

Supplementary material

10584_2014_1080_MOESM1_ESM.pdf (3.8 mb)
(PDF 3891 KB)

Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • A. B. A. Slangen
    • 1
    • 6
  • M. Carson
    • 2
  • C. A. Katsman
    • 3
  • R. S. W. van de Wal
    • 1
  • A. Köhl
    • 2
  • L. L. A. Vermeersen
    • 4
    • 5
  • D. Stammer
    • 2
  1. 1.Institute for Marine and Atmospheric research Utrecht (IMAU)Utrecht UniversityUtrechtThe Netherlands
  2. 2.Center for Earth System Research and Sustainability (CEN)University of HamburgHamburgGermany
  3. 3.Royal Netherlands Meteorological Institute (KNMI)AE De BiltThe Netherlands
  4. 4.Delft Climate InstituteFaculty of Aerospace EngineeringHS DelftThe Netherlands
  5. 5.Royal Netherlands Institute for Sea Research (NIOZ)SZ ’t HorntjeThe Netherlands
  6. 6.CSIRO Marine and Atmospheric Research (CMAR)HobartAustralia

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