Sea Level Change
Reconstructions of former sea levels provide context to frame recent accelerations and refine future projections of sea-level rise. Sea-level reconstructions help refine model predictions of glacial-isostatic adjustment (GIA) and aid our understanding of the spatial and temporal response to climate change. Sea-level reconstructions from coastal sediments are relevant to varied disciplines including studies of coastal evolution and wetland development, ice-sheet history, paleoclimate and understanding the environmental context of human activity. Reconstruction from coastal sedimentary record also provide an archive of the occurrence of former earthquakes, tsunamis and tropical cyclones. Observational and instrumental records are too short (particularly for less frequent, high magnitude events) to provide a reliable basis for predicting future activity Therefore, coastal sedimentary records are a valuable tool to assess future risk.