Whole suburbs flooded after exhaustive expert flood modelling says they won’t

Another triumph of modeling

In 2014, Townsville City Council launched a detailed flood mapping service.

The maps will allow people to search individual properties to find out the risk of it being inundated during a one-in-100-year flood event.

Five years later and they’re publishing inundation maps. Sadly, new suburbs were built with the wrong expectations.

 Townsville flood maps reviewed as more homes go under

Jared Owens and Charlie Peel The Australian

Townsville City Council’s spokeswoman said last night the model, which was based on expert modelling of different scenarios, was overwhelmed by an “unprecedented” monsoonal trough …

Local Government Associa­tion of Queensland chief executive Greg Hallam said Towns­ville’s flood maps relied on “exhaustive modelling of every possible scenario”, looking at variable­s such as rainfall and artificia­l structures.

“We’re not God. We don’t have supreme knowledge. We only have the best science, the best knowledge we can have,” he said. “We now know with the (dam) gates fully open … what will flood and what won’t, so there will be a new set of flood maps prod­uced out of this event.”

If we had better climate models, perhaps we might […]

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via JoNova

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February 6, 2019 at 10:18AM

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