Added 1976-08-04 15:10:00
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David Edworthy
Simple FDI Calculator
Post Date:
2017-09-25 15:10:00

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Further detailed information about this Simple FDI Calculator can be found at

This Simple FDI Calculator iPhone App has been created and designed for use by front line Bushfire Fire-fighters.
Fire danger is a broad concept which includes all items that determine whether fires will start, spread and do damage. Fire danger rating systems integrate selected quantifiable factors contributing to fire danger.

Decisions made from the data created by this FDI Calculator and any actions taken are the sole responsibility of the user. The Simple FDI Calculator is to be used strictly a guide. The authors and creators take no responsibility for any actions based on the data presented in this App.

This Simple FDI Calculator App has been created by Dave Edworthy from Windellama Volunteer Bushfire Brigade. – Rick McRae from ACT – ESA. and Brett Vilnis from Boztek Solutions & Weather Stations – –

Thanks to Dr Jason J Sharples – School of Physical, Environmental and Mathematical Sciences, University of New South Wales at the Australian Defence Force Academy. Canberra, ACT – for the use of his Formula (Sharples,
J.J., McRae, R.H.D., Weber, R.O., Gill, A.M., (2009) A simple index for assessing fire danger rating, Environmental Modelling & Software, 24, 764-774 )

Please note that calculations marked with * are using the McArthur Grassland Mark 5 model based on the Simple FDI.

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  • Simple FDI Calculator Screenshot
  • Simple FDI Calculator Screenshot

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