|Title||Climate related sea-level variations over the past two millennia.|
|Publication Type||Journal Article|
|Year of Publication||2011|
|Authors||Kemp AC, Horton B, Donnelly JP, Mann ME, Vermeer M, Rahmstorf S|
|Journal||Proceedings of the National Academy of Sciences of the United States of America|
|Keywords||Climate, late Holocene, ocean, Salt marsh|
We present new sea-level reconstructions for the past 2100 y based on salt-marsh sedimentary sequences from the US Atlantic coast. The data from North Carolina reveal four phases of persistent sea-level change after correction for glacial isostatic adjustment. Sea level was stable from at least BC 100 until AD 950. Sea level then increased for 400 y at a rate of 0.6 mm/y, followed by a further period of stable, or slightly falling, sea level that persisted until the late 19th century. Since then, sea level has risen at an average rate of 2.1 mm/y, representing the steepest century-scale increase of the past two millennia. This rate was initiated between AD 1865 and 1892. Using an extended semiempirical modeling approach, we show that these sea-level changes are consistent with global temperature for at least the past millennium.