Adapting to Shifting Tides: Science and the Policy Implications of Coastal Change

Joint Penrose/Chapman Conference; Galveston, Texas, 14–19 April 2013



Acceleration of sea-level rise (SLR) in response to global climate change is well under way. Global SLR averages about 3 millimeters per year over the past several decades, in comparison to an average rate of a fraction of a millimeter per year over the past few thousand years. The increased rate of SLR is exacerbated on a regional scale by decadal scale oscillations in sea level that are due to oceanographic processes, varying wave climate (wave height, period, and direction), coastal subsidence due to subsurface fluid extraction, and anthropogenic alterations in sediment supply to the shoreline, in particular the alteration of sediment delivery and distribution within deltas.