Oceanography The Official Magazine of
The Oceanography Society
Volume 24 Issue 02

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Volume 24, No. 2
Pages 70 - 79

Holocene Sea Level Changes Along the United States' Atlantic Coast

Simon E. EngelhartBenjamin P. Horton Andrew C. Kemp
Article Abstract

Reconstructions of Holocene relative sea level (RSL) have valuable applications in a number of topics within the Earth sciences, including calibrating and constraining geophysical models of Earth’s rheology and glacial isostatic adjustment. The usefulness of these reconstructions depends on application of a standardized methodology that fully considers all age and vertical errors. We outline this methodology and provide a detailed example from New Jersey. We describe Holocene RSL reconstructions from the US Atlantic coast that illustrate both spatial and temporal variability. Spatially, rates of Holocene RSL rise were greatest in the Mid Atlantic (New Jersey and Delaware) with decreasing rates of rise to the north and south. Temporally, rates of RSL rise have decreased since the early Holocene due to the combined effects of continued relaxation of the solid Earth in response to deglaciation and reduction in ice melt since 7,000 years ago. A comparison of late Holocene (last 4,000 years) geological reconstructions to long-term tide-gauge measurements reveals that sea level rise increased above background rates by an average of 1.7 mm yr–1 during the twentieth century.

Citation

Engelhart, S.E., B.P. Horton, and A.C. Kemp. 2011. Holocene sea level changes along the United States’ Atlantic Coast. Oceanography 24(2):70–79, https://doi.org/10.5670/oceanog.2011.28.

References

Alley, R.B., P.U. Clark, P. Huybrechts, and I. Joughin. 2005. Ice-sheet and sea-level changes. Science 310:456–460. [CrossRef]

Brain, M.J., A.J. Long, D.N. Petley, B.P. Horton, and R.J. Allison. 2011. Compression behaviour of minerogenic low energy intertidal sediments. Sedimentary Geology 23:28–41. [CrossRef]

Church, J.A., and N.J. White. 2006. A 20th century acceleration in global sea-level rise. Geophysical Research Letters 33, L01602. [CrossRef]

Donnelly, J.P., P. Cleary, P. Newby, and R. Ettinger. 2004. Coupling instrumental and geological records of sea-level change: Evidence from southern New England of an increase in the rate of sea-level rise in the late 19th century. Geophysical Research Letters 31, L05203. [CrossRef]

Douglas, B.C. 2008. Concerning evidence for fingerprints of glacial melting. Journal of Coastal Research 24:218–227. [CrossRef]

Dyke, A.S., A. Moore, and L. Robertson. 2003. Deglaciation of North America. Geological Survey of Canada Open File 1574.

Engelhart, S.E., B.P. Horton, B.C. Douglas, W.R. Peltier, and T.E. Tornqvist. 2009. Spatial variability of late Holocene and 20th century sea-level rise along the Atlantic coast of the United States. Geology 37:1,115–1,118. [CrossRef]

Engelhart, S.E., W.R. Peltier, and B.P. Horton. In press. Holocene relative sea-level changes and glacial isostatic adjustment of the US Atlantic coast. Geology.

Gehrels, W.R. 1994. Determining relative sea-level change from salt-marsh foraminifera and plant zones on the coast of Maine, USA. Journal of Coastal Research 10:990–1,009.

Gehrels, W.R. 1999. Middle and late Holocene sea-level changes in Eastern Maine reconstructed from foraminiferal saltmarsh stratigraphy and AMS C-14 dates on basal peat. Quaternary Research 52:350–359. [CrossRef]

Horton, B.P., R. Corbett, S.J. Culver, R.J. Edwards, and C. Hillier. 2006. Modern saltmarsh diatom distributions of the Outer Banks, North Carolina, and the development of a transfer function for high resolution reconstructions of sea level. Estuarine, Coastal and Shelf Science 69:381–394. [CrossRef]

Hughen, K., M. Baillie, E. Bard, A. Bayliss, J. Beck, C. Bertrand, P. Blackwell, C. Buck, G. Burr, and K. Cutler. 2004. Marine04 marine radiocarbon age calibration, 26-0 ka BP. Radiocarbon 46:1,059–1,086.

Jelgersma, S. 1961. Holocene sea-level changes in the Netherlands. Mededelingen Geologische Stichting Serie C 7:1–100.

Kaye, C.A., and E.S. Barghoorn. 1964. Late Quaternary sea-level change and crustal rise at Boston, Massachusetts, with notes on the autocompaction of peat. Geological Society of America Bulletin 75:63–80. [CrossRef]

Milne, G.A., and J.X. Mitrovica. 2008. Searching for eustasy in deglacial sea-level histories. Quaternary Science Reviews 27:2,292–2,302. [CrossRef]

Milne, G.A., W.R. Gehrels, C.W. Hughes, and M.E. Tamisiea. 2009. Identifying the causes of sea-level change. Nature Geoscience 2:471–478. [CrossRef]

Milne, G.A., A.J. Long, and S.E. Bassett. 2005. Modelling Holocene relative sea-level observations from the Caribbean and South America. Quaternary Science Reviews 24:1,183–1,202. [CrossRef]

Peltier, W.R. 2004. Global glacial isostasy and the surface of the ice-age Earth: The ice-5G (VM2) model and GRACE. Annual Review of Earth and Planetary Sciences 32:111–149. [CrossRef]

Peltier, W.R., and R.G. Fairbanks. 2006. Global glacial ice volume and Last Glacial Maximum duration from an extended Barbados sea level record. Quaternary Science Reviews 25:3,322–3,337. [CrossRef]

Redfield, A.C. 1972. Development of a New England salt marsh. Ecological Monographs 42:201–237. [CrossRef]

Reimer, P., and R. Reimer. 2001. A marine reservoir correction database and on-line interface. Radiocarbon 43:461–463.

Scott, D.S., and F.S. Medioli. 1978. Vertical zonations of marsh foraminifera as accurate indicators of former sea-levels. Nature 272:528–531. [CrossRef]

Shaw, J., P. Gareau, and R.C. Courtney. 2002. Palaeogeography of Atlantic Canada 13–0 kyr. Quaternary Science Reviews 21:1,861–1,878.

Shennan, I. 1986. Flandrian sea-level changes in the Fenland. II. Tendencies of sea-level movement, altitudinal changes, and local and regional factors. Journal of Quaternary Science 1:155–179. [CrossRef]

Shennan, I., and B. Horton. 2002. Holocene land- and sea-level changes in Great Britain. Journal of Quaternary Science 17:511–526. [CrossRef]

Stuiver, M., and H.A. Polach. 1977. Discussion: Reporting of 14C data. Radiocarbon 19:355–363.

Tooley, M.J. 1982. Sea-level changes in northern England. Proceedings of the Geologists’ Association 93:43–51. [CrossRef]

Törnqvist, T.E., D.J. Wallace, J.E.A. Storms, J. Wallinga, R.L. Van Dam, M. Blaauw, M.S. Derksen, C.J.W. Klerks, C. Meijneken, and E.M.A. Snijders. 2008. Mississippi Delta subsidence primarily caused by compaction of Holocene strata. Nature Geoscience 1:173–176. [CrossRef]

Uehara, K., J. Scourse, K. Horsburgh, K. Lambeck, and A. Purcell. 2006. Tidal evolution of the northwest European shelf seas from the Last Glacial Maximum to the present. Journal of Geophysical Research 111, C09025. [CrossRef]

van de Plassche, O. 1986. Sea-level Research: A Manual for the Collection and Evaluation of Data. Kluwer Academic Publishers, 618 pp.

van de Plassche, O., ed. 1991. Late Holocene sea-level fluctuations on the shore of Connecticut inferred from transgressive and regressive overlap boundaries in salt-marsh deposits. Journal of Coastal Research special issue 11:159–179.

van de Plassche, O., K. van der Borg, and A.F.M. de Jong. 1998. Sea level-climate correlation during the past 1400 yr. Geology 26:319–322. [CrossRef]

van de Plassche, O., K. van der Borg, and A.F.M. de Jong. 2002. Relative sea-level rise across the Eastern Border fault (Branford, Connecticut): Evidence against seismotectonic movements. Marine Geology 184:61–68. [CrossRef]

Woodworth, P.L., W.R. Gehrels, and R.S. Nerem. 2011. Nineteenth and twentieth century changes in sea level. Oceanography 24(2):80–93. [CrossRef]

Woodworth, P.L., N.J. White, S. Jevrejeva, S.J. Holgate, J.A. Church, and W.R. Gehrels. 2009. Evidence for the accelerations of sea level on multi-decade and century timescales. International Journal of Climatology 29:777–789. [CrossRef]