Evolution of the Rømø barrier island in the Wadden Sea: Impacts of sea-level change on coastal morphodynamics
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Evolution of the Rømø barrier island in the Wadden Sea: Impacts of sea-level change on coastal morphodynamics. / Clemmensen, Lars B; Andersen, Thorbjørn Joest; Johannessen, Peter; Nielsen, Lars Henrik Rønmos; Nielsen, Lars; Pejrup, Morten.
2010. Abstract from ECSA Conference 46. The Wadden Sea: Changes and Challenges in a World Heritage Site, List, Germany.Research output: Contribution to conference › Conference abstract for conference › Research
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T1 - Evolution of the Rømø barrier island in the Wadden Sea: Impacts of sea-level change on coastal morphodynamics
AU - Clemmensen, Lars B
AU - Andersen, Thorbjørn Joest
AU - Johannessen, Peter
AU - Nielsen, Lars Henrik Rønmos
AU - Nielsen, Lars
AU - Pejrup, Morten
PY - 2010
Y1 - 2010
N2 - Sandy coastal barriers are abundant along most continents, and they are oftenintensively engineered to prevent erosion. Therefore, it is important to developprojections of the evolution of this coastal type in periods with changing climate and sea-level. We have used a multidisciplinary approach combining facies analysis of ground penetrating radar profiles and sediment cores, and optically stimulated luminescence dating to reconstruct the history of the Rømø barrier island (Denmark) over the past 8000 years. This approach allows us to develop a high resolution 2D reconstruction of the formation of the barrier island system, and to interpret it in relation to sea-level changes. We found that the various subsystems constituting the barrier system responded differently to Holocene sea-level variations. Beach and shoreface deposition took place during periods of slowly rising sea-level, still stand, and falling sea-level, whereas wash-over sedimentation was promoted during periods of rapid sea-level rise when shoreface, beach and coastal dune deposits were reworked. In contrast, lagoonal sedimentation has been relatively continuous and kept pace with thelong-term Holocene sea-level rise. Our findings have implications for the development of new conceptual models for barrier island formation.
AB - Sandy coastal barriers are abundant along most continents, and they are oftenintensively engineered to prevent erosion. Therefore, it is important to developprojections of the evolution of this coastal type in periods with changing climate and sea-level. We have used a multidisciplinary approach combining facies analysis of ground penetrating radar profiles and sediment cores, and optically stimulated luminescence dating to reconstruct the history of the Rømø barrier island (Denmark) over the past 8000 years. This approach allows us to develop a high resolution 2D reconstruction of the formation of the barrier island system, and to interpret it in relation to sea-level changes. We found that the various subsystems constituting the barrier system responded differently to Holocene sea-level variations. Beach and shoreface deposition took place during periods of slowly rising sea-level, still stand, and falling sea-level, whereas wash-over sedimentation was promoted during periods of rapid sea-level rise when shoreface, beach and coastal dune deposits were reworked. In contrast, lagoonal sedimentation has been relatively continuous and kept pace with thelong-term Holocene sea-level rise. Our findings have implications for the development of new conceptual models for barrier island formation.
M3 - Conference abstract for conference
Y2 - 3 May 2010 through 6 May 2010
ER -
ID: 22614160