Based on Ambiental’s market-leading flood hazard model, Australia FloodCAT™ is the most comprehensive and accurate Australia-wide catastrophe model available.

At a Glance

  • Country-wide flood catastrophe model
  • Property and post code level
  • Pluvial and fluvial flooding
  • Flowroute-i™ 2D flood model
  • Highest precision for major cities
  • Full probability event catalogue
  • Up-to-date detailed vulnerability data (GAR15)

Australia FloodCAT™ includes more than 100,000 realistic synthetic flooding events, as well as major historic flood events throughout Australia to give accurate catastrophic flood catastrophe information right down to individual property level.

Property vulnerability is classified according to usage, occupancy, construction type and other factors. So you can fully understand and quantify the impact of a full range of flood loss scenarios.

Working in close collaboration with the insurance industry, Australia FloodCAT™ has been thoroughly tested and validated against both historic floods and losses. It’s available immediately through Aon Benfield’s powerful, easy-to-use ELEMENTS platform.


  • Highly accurate overview of risk
  • Unparalleled geographic precision
  • Latest vulnerability data from Geoscience Australia
  • Extensively tested and validated
  • Available now in ELEMENTS

Click to view the technical details

Flood sources

  • Fluvial (from rivers on floodplain)
  • Pluvial (from surface water off floodplain)


  • Urban: 5 metre grid resolution LiDAR (nominal vertical accuracy ±0.15m)
  • Rural: 30 metre grid resolution enhanced SRTM


  • Locally adjusted rainfall and runoff method (regional best practice)
  • Rational method augmented with statistical approach where gauges are available


  • Full shallow water wave 2D modelling (Flowroute-i™)
  • Spatially variable land use (eg roughness/infiltration)

Probabilistic event sets

  • Simulated river-flows and rainfall event catalogue
  • Over 90,000 fluvial and over 160,000 pluvial

Deterministic event sets

  • Historic events for every state in Australia
  • Includes major events (eg New South Wales 1986, Victoria 2010, Queensland 2011)


  • Includes residential, commercial and industrial business lines as well as contents coverage
  • Over 1,800 curves derived from occupancy and construction modifiers
  • Adjustable modifier parameters:
    • 5 construction types
    • 6 building height bandings
    • 3 business occupancy classes
    • 3 building elevation levels
    • 4 interior susceptibility ratings


  • PSMA Australia G-NAF address database
  • Postcode


  • Hazard validation against historic floods
  • Loss validation against historic losses
  • Internal and independent studies

Delivery formats

  • Aon Benfield ELEMENTS
  • Oasis
  • Various raw data formats
  • In development: AIR, RMS (one)

Australia FloodCAT™ uses both historic and predictive data to measure the effects of catastrophic flooding with unparalleled accuracy.

Paul Drury

Get in Touch

To get a quote or to discuss what you need, contact Paul Drury

Call me on 0203 857 8543

Or email at

T&CsPrivacyCookies © 2018 Ambiental. Registered in England and Wales - Company No. 04531745. All rights reserved
Sign up!

Newsletter Signup

Our monthly newsletter highlighting flood analytics, insights, trends, and news you need.