Use of accurate digital surface models generated from digital aerial photogrammetry for urban flood modelling
Due to climate change and an expansion of urban catchment, urban flooding is becoming a major environmental hazard and can cause very costly damages to properties and assets around Australia. The insurance industry is in real need of accurate information for their use in risk analysis and urban flood vulnerability.
Innovation and technologic improvement in the acquisition technics and the processing of digital elevation models can make it economically feasible to gather large and accurate 3D information of natural and urban areas.
Based on a 7cm very high resolution digital aerial imagery acquired with our UltraCam-X camera system and a 10cm digital surface model, this short video shows a simulated 7m water level rise in Bendigo, Victoria.
The South-East of Australia has once more become a victim of devastating floods that have forced many residents to evacuate their homes. Regional townships in Victoria and New South Wales have been hit the most. AEROmetrex has been commissioned by the Victorian government to survey a large part of Victoria. AEROmetrex is a trusted supplier of aerial photography due to our extensive experience and efficiency during extremely time-sensitive disaster events. Read more
Dirranbandi, a few kilometers south of St-George in Southern Queensland has been cut off by flood waters. This emergency aerial orthophotos (metric aerial photography) has been captured and processed by AEROmetrex on Friday 10th February 2012. Read more
LATEST UPDATE Wednesday 8th February 2012
Time-series video below
Oblique aerial photography of Roma can be seen here: http://www.aerometrex.com.au/blog/?p=327
Australia is once again bracing for heavy floods affecting areas of Western Queensland and Northern New South Wales and many towns have been hit hard. The following satellites images from the NASA satellite Terra and Aqua (http://lance.nasa.gov/imagery/rapid-response/) acquired from Saturday 4th show the extent of the food ( beige-brown area) over the Gwydir Highway, between Moree and Collarenebri as well as St-George and surrounding areas. The time-series shows the progression of the flood water going South.
AEROmetrex is currently conducting high-resolution aerial survey of the area. Read more
Australia experiences each year a range of natural disasters including floods, bushfires, server storms, landslides and earthquakes. Queensland and New South Wales have experienced an increasing number of flood events in the past few years. Both populated areas along the coast as well as isolated rural towns have been hit hard and emergency services have had a hard time dealing with these disasters. Floods are estimated to be the most costly natural disaster in Australia and cost local and state governments hundreds of millions. Read more