LONG TERM MORPHOLOGICAL EVOLUTION OF THE GOLD COAST SEAWAY: HISTORICAL AND NUMERICAL ANALYSIS

Mahnaz Sedigh, Rodger Tomlinson, Aliasghar Golshani, Nick Cartwright

Abstract


The Gold Coast Seaway is one of two main tidal inlets located on the Australian East coast at a longitude of 27°56’10S and a latitude of 153°25’60E linking an intra-coastal waterway known as The Broadwater with the Pacific Ocean.. The reasons for construction of the Gold Coast Seaway and the associated sand by-passing system in the 1980s were stabilising the entrance, maintaining a safe navigable channel, preventing shoreline erosion to the north and maintaining an adequate beach width to the south.

Keywords


Delta; Morphological evolution; Delta crest movement

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