Sea Level Change from Cave Records

Sea-level Rise is a major global concern for society. Coastal protection plans rely on ranges of sea-level rise projections from global warming scenarios (e.g., IPCC) and from statistical methods using historical, and some geological data. However, these estimates remains poorly constrained and a better precision of the altitude that sea level may reach in the coming century is needed to refine these plans.

We aim at providing robust constrains about past sea-level change characteristics (e.g., maximum altitude reached, rising rate) over the last interglacials or towards them. To this purpose, speleothems from coastal caves can be very handful as soon as they can be precisely and absolutely dated using the U-series chronometers. Indeed, speleothems stop growing when they are submerged by sea level. Dating speleothem growth phases and hiatus thus provide invaluable information about sea level history.

Funding:

NERC IGlass Consortium

People:

K. Wainer, G. Henderson, A. Mason, A.Thomas (University of Edinburgh) and M. Rowe