Published: 11 November 2013
New apps for critical bushfire assessment
The NSW Rural Fire Service is using new android apps developed by the CSIRO to conduct a critical assessment of the recent bushfires that have devastated communities in the state, and plan for future climate adaptation scenarios.
A screenshot of the Bushfire House Surveyor android app being used by the NSW RFS developed by the team in the CSIRO Climate Adaptation Flagship.
The two android tablet apps are being used for the first time in the Blue Mountains towns of Winmalee, Lithgow and Mount Victoria. The towns are among those severely affected by the recent bushfires.
Improved technology for post-bushfire surveillance is crucial, as bushfires are likely to increase in frequency. Australia has just had its warmest 12-month period on record, and NSW has just had its warmest period from January to September.
Bushfires have long been a key part of Australia’s environment and are influenced by many factors – including warmer and drier conditions, extreme heat, strong winds and low humidity, housing design and materials, and fuel loads and management.
The new technology development is led by Justin Leonard, the research leader for bushfire urban design at the CSIRO’s Climate Adaptation Flagship.
‘Climate change projections are suggesting that we’re going to see an increase in the frequency of fire weather events that drive fires like this through the landscape, so we’re expecting a significant increase in the number of bushfire events that are going to cause life and house loss,’ Mr Leonard says.
The first app is called a rapid impact assessor, and enables the Rural Fire Service and CSIRO teams to enter a bushfire zone and quickly gauge the extent to which properties have been untouched, damaged or completely destroyed. The app works in real time, so multiple teams can use it simultaneously.
The second app is a house surveying tool. It captures the finer detail around a house, such as its design and the surrounding landscape. This includes polygons, polylines and point features. The information is loaded into a geodatabase and analysed for further research into fire management and prevention of house losses.
Mr Leonard says the app is also used to collect videos and photos to log the nature and impact of the loss.
‘We collect most of our data by going in after a bushfire event and surveying the damage, and we relate that to laboratory experiments both small and large-scale to understand what’s really unravelling in the urban environment when a bushfire attacks,’ he says.
The apps are a breakthrough in how bushfires are assessed. Mr Leonard says after the catastrophic Ash Wednesday bushfires 30 years ago, post-bushfire surveys were conducted using pen and paper, and film cameras.
‘As computer technology and mobile apps and tablets came online, we instantly recognised that there was this opportunity to condense our survey methodology into a smart device,’ he says.
The tablets contain all the data that has been collected in previous days, overlaid onto maps. The teams in the field can easily work out which areas have already been covered in real time, making the process more efficient.
‘So people can avoid surveying the same house twice, even if they’re in close proximity to each other. They can even leapfrog down the street and just continually survey as a complete group,’ he says.