Impact of storms on beach erosion: Broadbeach (Gold Coast, Australia)

• DOI: 10.2112/jcr-si50-102.1
• Publication Date: 2024-03-30T10:55:22Z
• Authors: B. Castelle; I.L. Turner; B.G. Ruessink; R.B. Tomlinson
• Keywords: Coastal erosion; Plage; Beach nourishment; Gold coast

Castelle, B., Turner, I.L., Ruessink, B.G., and Tomlinson, R.B., 2007. Impact of storms on beach erosion: Broadbeach (Gold Coast, Australia). Journal Coastal Research, SI 50 (Proceedings the 9th International Symposium), 534 – 539. Gold Australia, ISSN 0749.0208 The 70 km long Queensland Coast has been one Australia's premier coastal holiday resort destinations for more than 40 years. Extreme events, particularly tropical cyclones approaching area, can generate storm waves surges which have caused widespread episodic damage to local economy. Broadbeach, located is a double-barred representative most beaches. present study aims quantify response events in order assess ability this withstand extreme recover during periods lower wave energy. From 1st March 10th July, 2006, 35 accurate subaerial surveys were undertaken. ARGUS images used estimate location nearshore bars. During period, experienced three erosion events. Offshore buoy measurements are conditions that occurred. first (from 2nd 6th March) was hybrid-cyclone generated energetic past 30 years, with measured offshore significant height reaching 5.3 m, maximum 10.7 m at Seaway buoy. two other much less storm, heights ranging from 2 3 m. early event resulted 48m3/m seaward migration outer bar just few days. Abnormally high rates both second third This may be explained by decay following event, did not provide any protection subsequent severe suggests current average width too narrow an succession similar occurred 1967.