The Queensland Floods of 2010-2011

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A flood can be defined in many depths but is simply water where it isn’t wanted. In late 2010 Queensland was affected by major flash flooding this continued on into the beginning of 2011 and ¾ of Queensland was declared a disaster zone.
The floods affected 75% of the state from Rockhampton to Brisbane in both inland and coastal areas. 500 000 km2 were affected – this is larger than the area of France and Germany combined.
The floods started at the end of November 2010 and Cyclone Tasha a category 1 cyclone hit on Christmas Eve; they continued through till mid-January 2011. Cyclone Yasi then hit in February soon after the floods causing even more havoc to the already damaged Queensland.

Flooding is most frequently caused from substantial precipitation when waterways are full and the additional water has nowhere to go. Though rainfall isn’t always the cause of floods; they can be the outcome of other occurrences, mostly in coastal areas where inundation can be triggered by a storm surge linked with a tropical cyclone, a tsunami or a high tide corresponding with above average river levels.
Additional factors that can contribute to flooding include: storms, global warming, the capacity, amount, length and spread of rain over a particular area, the size of waterway to hold excess water, the catchment and climate conditions preceding rainfall, ground cover, topography and tidal impacts.
In the Queensland floods of 2010-11 they were caused by a rare combination of events. The
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