Increase in the frequency of flooding events under projected sea level rise

Figure Created 29 Aug 2014 Published 18 Sep 2014 Last modified 27 May 2016, 09:38 AM
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This map shows the multiplication factor (shown at tide gauge locations by colored dots), by which the frequency of flooding events of a given height is projected to increase between 2010 and 2100 as a result of regional sea level rise under the RCP4.5 scenario.


Additional information

Source:: Adapted from Figure 13.25(b) of the Working Group I contribution to the IPCC Fifth Assessment Report (

Sea-level data from tide gauges were supplied by European Sea-Level Service, Global Sea Level Observing System (GLOSS) Delayed Mode Centre, Helpdesk Water (Netherlands), Instituto Español de Oceanographia (Spain), Istituto Talassografico di Trieste (Italy), Marine Environmental Data Service (Canada), National Oceanography Centre Liverpool (UK), National Tidal Centre (Bureau of Meteorology, Australia), Norwegian Mapping Authority, Service Hydroographique et Océanographique de la Marine (France), Swedish Meteorological and Hydrological Institute and University of Hawaii Sea Level Centre (USA). Sea-level rise projections are based on the CMIP5 ensemble of global climate models.

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