Abstract
Estimation of expected extremes, using combinations of observations and model simulations, is common practice. Many techniques assume that the background statistics are stationary and that the resulting estimates may be used satisfactorily for any time in the future. We are now however in a period of climate change, during which both average values and statistical distributions may change in time. The situation is further complicated by the considerable uncertainty which accompanies the projections of such future change. Any useful technique for the assessment of future risk should combine our knowledge of the present, our best estimate of how the world will change, and the uncertainty in both. A method of combining observations of present sea-level extremes with the (uncertain) projections of sea-level rise during the 21st century is described, using Australian data as an example. The technique makes the assumption that the change of flooding extremes during the 21st century will be dominated by the rise in mean sea level and that the effect of changes in the variability about the mean will be relatively small. The results give engineers, planners and policymakers a way of estimating the probability that a given sea level will be exceeded during any prescribed period during the present century.
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References
Bindoff N, Willebrand J, Artale V, Cazenave A, Gregory J, Gulev S, Hanawa K, Quéré C, Levitus S, Nojiri Y, Shum C, Talley L, Unnikrishnan A (2007) Climate change 2007: the physical science basis. In: Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change, chapter 5. Cambridge University Press, Cambridge, pp 385–432
Canadell J, Quéré C, Raupach M, Field C, Buitenhuis E, Ciais P, Conway T, Gillett N, Houghton R, Marland G (2007) Contributions to accelerating atmospheric CO2 growth from economic activity, carbon intensity, and efficiency of natural sinks. In: Proceedings of the National Academy of Sciences 104, pp 18866–18870
Church J, Gregory J, Huybrechts P, Kuhn M, Lambeck K, Nhuan M, Qin D, Woodworth P (2001) Climate change 2001: the scientific basis. In: Contribution of working group I to the third assessment report of the intergovernmental panel on climate change, chapter 11. Cambridge University Press, Cambridge, pp 639–693
Church J, Hunter J, McInnes K, White N (2006) Sea-level rise around the Australian coastline and the changing frequency of extreme sea-level events. Aust Meteorol Mag 55:253–260
Church J, White N (2006) A 20th century acceleration in global sea-level rise. Geophys Res Lett 33(L01602). doi:10.1029/2005GL024826
Church J, White N, Aarup T, Wilson W, Woodworth P, Domingues C, Hunter J, Lambeck K (2008) Understanding global sea levels: past, present and future. Sustain Sci 3(1):9–22
Coles S (2001) An introduction to statistical modeling of extreme values. Springer, London
Grinsted A, Moore J, Jevrejeva S (2009) Reconstructing sea level from paleo and projected temperatures 200 to 2100 AD. Clim Dyn. doi:10.1007/s00382–008–0507–2
Hansen J (2007) Scientific reticence and sea level rise. Environ Res Lett 2(024002). doi:10.1088/1748–9326/2/2/024002
Holgate S, Jevrejeva S, Woodworth P, Brewer S (2007) Comment on “A semi-empirical approach to projecting future sea-level rise”. Science 317(5846):1866b–1866c. doi:10.1126/science.1140942
Holgate S, Woodworth P (2004) Evidence for enhanced coastal sea level rise during the 1990s. Geophys Res Lett 31(L07305). doi:10.1029/2004GL019626
Horton R, Herweijer C, Rosenzweig C, Liu J, Gornitz V, Ruane A (2008) Sea level rise projections for current generation CGCMs based on the semi-empirical method. Geophys Res Lett 35(L02715). doi:10.1029/2007GL032486
IPCC (2007a) Climate change 2007: the physical science basis. In: Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change. Cambridge University Press, Cambridge
IPCC (2007b) Climate change 2007: the physical science basis. In: Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change, summary for policymakers. Cambridge University Press, Cambridge
Jevrejeva S, Grinsted A, Moore J, Holgate S (2006) Nonlinear trends and multiyear cycles in sea level records’. J Geophys Res 111(C09012). doi:10.1029/2005JC003229
Lambeck K (2002) Sea level changes from mid Holocene to recent time: an Australian example with global implications. In: Ice sheets, sea level and the dynamic earth, vol 29 of Geodynamics series. American Geophysical Union, Washington, DC, pp 33–49
Lemke P, Ren J, Alley R, Allison I, Carrasco J, Flato G, Fujii Y, Kaser G, Mote P, Thomas R, Zhang T (2007) Climate change 2007: the physical science basis. In: Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change, chapter 4. Cambridge University Press, Cambridge, pp 337–383
Meehl G, Stocker T, Collins W, Friedlingstein P, Gaye A, Gregory J, Kitoh A, Knutti R, Murphy J, Noda A, Raper S, Watterson I, Weaver A, Zhao Z-C (2007) Climate change 2007: the physical science basis. In: Contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change, chapter 10. Cambridge University Press, Cambridge, pp 747–845
PCTMSL (2007) Australian tides manual, special publication no. 9. Permanent Committee on Tides and Mean Sea Level, Commonwealth of Australia. http://www.icsm.gov.au/tides/SP9/sp9.pdf
Pfeffer W, Harper J, O’Neel S (2008) Kinematic constraints on glacier contributions to 21st-century sea-level rise. Science 321(5894):1340–1343. doi:10.1126/science.1159099
Pugh D (1996) Tides, surges and mean sea-level. Wiley, Chichester http://eprints.soton.ac.uk/19157/01/sea-level.pdf (reprinted with corrections)
R Development Core Team (2008) R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. ISBN 3-900051-07-0
Rahmstorf S (2007) A semi-empirical approach to projecting future sea-level rise. Science 315(5810):368–370
Rahmstorf S, Cazenave A, Church J, Hansen J, Keeling R, Parker D, Somerville R (2007) Recent climate observations compared to projections. Science 316(5825):709
Raupach M, Marland G, Ciais P, Quéré CL, Canadell J, Klepper G, Field C (2007) Global and regional drivers of accelerating CO2 emissions. In: Proceedings of the National Academy of Sciences 104, pp 10288–10293
Schmith T, Johansen S, Thejll P (2007) Comment on “A semi-empirical approach to projecting future sea-level rise”. Science 317(5846):1866c. doi:10.1126/science.1143286
Woodworth P, Blackman D (2004) Evidence for systematic changes in extreme high waters since the mid-1970s. J Climate 17(6):1190–1197
Woodworth P, White N, Jevrejeva S, Holgate S, Church J, Gehrels W (2008) Evidence for the accelerations of sea level on multi-decade and century timescales. Int J Climatol 29:777–789. doi:10.1002/joc.1771
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Hunter, J. Estimating sea-level extremes under conditions of uncertain sea-level rise. Climatic Change 99, 331–350 (2010). https://doi.org/10.1007/s10584-009-9671-6
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DOI: https://doi.org/10.1007/s10584-009-9671-6