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The response of tropical Australian estuaries to a sea level rise

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dc.contributor Australian Inst Marine Sci
dc.contributor Australian Institute Of Marine Science
dc.contributor Australian Institute Of Marine Science (aims) en CHAPPELL, J WOLANSKI, E 2017-03-21T00:58:33Z 2017-03-21T00:58:33Z 2013-02-28T06:42:56Z 2019-07-08T02:10:36Z 2013-02-28T06:42:56Z 2013-02-28T06:42:56Z 2017-03-21T00:58:33Z 2019-07-08T02:10:36Z 1996-02-01
dc.identifier 2838 en
dc.identifier.citation Wolanski EJ and Chappell J (1996) The response of tropical Australian estuaries to a sea level rise. Journal of Marine Systems. 7: 267-279. en
dc.identifier.issn 0924-7963
dc.description Link to abstract/full text - en
dc.description.abstract Estuaries in tropical Australia have a low sediment yield (about 5-20 tonnes km(-2) yr(-1)). The estuaries formed when rising post-glacial sea level invaded coastal valleys 7 to 9000 years ago. Geomorphological and stratigraphic data show that mangrove swamps developed on the flooded plains and in some cases their substrate kept pace with the rising sea level. The bulk of the sediment originated from the sea. When sea level stabilised, 6000 years ago, the flood plains prograded seaward. The channels now are generally stable and in some cases are inherited from the progradation phase. The response of these estuaries to a sea level rise may be inferred both from their evolution during post glacial sea level rise and from hydrodynamics-sedimentological models calibrated against measurements of tidal processes. This was undertaken for Coral Creek, the South Alligator River and the Norman River in north Australia. Modelling indicates that a future sea level rise will generate changes in the dynamics and channel dimensions which mimic post glacial changes. In the macrotidal South Alligator the floodplain will revert to mangrove, the mouth region will widen and sediment will move upstream and onto the floodplain. In the mesotidal, diurnal Norman the channel will widen throughout and sediment will be transported seawards. In Coral Creek the mangrove will retreat landwards.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Journal of Marine Systems - pages: 7: 267-279 en
dc.relation.ispartof Null
dc.subject Mangrove Swamps
dc.subject Marine & Freshwater Biology
dc.subject Hydrodynamics
dc.subject Geosciences, Multidisciplinary
dc.subject Oceanography
dc.subject Geology
dc.title The response of tropical Australian estuaries to a sea level rise
dc.type journal article en
dc.identifier.wos WOS:A1996UK93900011

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