Approach and Outcomes

A desktop investigation was undertaken into the different low-cost gauge technologies that were available that can record automatic rainfall and water level and then provide this data remotely in real time as well as log long periods.

Three manufacturers were chosen from this desktop study and gauges were purchased for trial at two locations in the region; Centenary Bridge over the Condamine River at Pampas and at the Alderley St gauges in Toowoomba. These locations were primarily chosen as they had existing BoM specification gauges in which the data produced by the low-cost gauges could be compared.

The gauges were allowed to log data for approximately six months and then the data was compared to the simultaneously recorded BoM specification data. Overall, for rainfall it was found that two products performed well while a third tended to under-predict significantly, whilst for water level one product performed well whilst two require further testing.

The Challenge

Toowoomba Regional Council is seeking to expand its hydrometric network however a key limiting factor is the cost associated with traditional gauge installations. A number of other technologies exist that may still provide Council with valuable data both in real time and for calibrating models.

Technologies Involved

Toowoomba Regional Council

Technologies Involved
  • Low cost gauges

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