Probabilistic Sea Level Projections at the Coast by 2100

• Published in: Surveys in geophysics 2019-11, Vol.40 (6), p.1673-1696
• Main Authors: Jevrejeva, S., Frederikse, T., Kopp, R. E., Le Cozannet, G., Jackson, L. P., van de Wal, R. S. W.
• Format: Article
• Language: English
• Subjects: Applied geology; Astronomy; Coastal engineering; Coastal zone; Earth and Environmental Science; Earth Sciences; Ecological risk assessment; Economics; Geophysics/Geodesy; Land use; Land use management; Land use planning; Mean sea level; Observations and Techniques; Population density; Probability distribution; Probability theory; Sciences of the Universe; Sea level; Sea level changes; Sea level rise; Socioeconomic aspects; Statistical analysis; Uncertainty
• ISSN: 0169-3298; 1573-0956
• DOI: 10.1007/s10712-019-09550-y

As sea level is rising along many low-lying and densely populated coastal areas, affected communities are investing resources to assess and manage future socio-economic and ecological risks created by current and future sea level rise. Despite significant progress in the scientific understanding of the physical mechanisms contributing to sea level change, projections beyond 2050 remain highly uncertain. Here, we present recent developments in the probabilistic projections of coastal mean sea level rise by 2100, which provides a summary assessment of the relevant uncertainties. Probabilistic projections can be used directly in some of the decision frameworks adopted by coastal engineers for infrastructure design and land use planning. However, relying on a single probability distribution or a set of distributions based upon a common set of assumptions can understate true uncertainty and potentially misinform users. Here, we put the probabilistic projections published over the last 5 years into context.