Australian rivers have been subject to devastating floods in New South Wales, recorded since colonisation.[1] Flooding in New South Wales has predominately been caused by excessive flows into rivers located in New South Wales and, to a lesser extent, excessive flows into rivers located in Queensland and Victoria. Floods can devastate local communities and impact the entire local economy.[2]
The principal topographic feature of New South Wales is the series of low highlands and plateaus called the Great Dividing Range, which extend from north to south roughly parallel to the coast of the Coral and Tasman seas of the South Pacific Ocean. Flooding occurs both west and east of the Range, although the prevalence and impact of flooding of rivers that flow easterly towards the coast is more pronounced due to larger flows of water and high population levels.[citation needed] The principal meteorological cause of flooding is the Australian east coast low.
Australia experienced significant flooding disasters in 2010 and 2011 with a series of floods that occurred during March 2010 in Queensland and Victoria; and again in Victoria in September, in Queensland during December 2010 and February 2011, and in Wollongong in March 2011.[3] The Victorian and Queensland floods, although occurring in other states, were deemed to be one of the worst floods Australia and New South Wales had experienced.[citation needed] In 2021, there was a huge flood in NSW and Queensland.
^"Search: Flooding in New South Wales". Trove. Retrieved 18 September 2016 – via National Library of Australia.
^Carbone, Delana; Hanson, Jenna (8 March 2012). "Floods: 10 of the deadliest in Australian history". Australian Geographic. Archived from the original on 27 January 2013. Retrieved 18 September 2016.
^Cheong, France; Cheong, Christopher (2011). "Social Media Data Mining: A Social Network Analysis Of Tweets During The 2010–2011 Australian Floods" (abstract). PACIS 2011 Proceedings. Paper 46. ISBN 978-1-86435-644-1.
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