The most complete view of flood hazard in Australia enables underwriters, planners and others to make better decisions and improve control over losses.

Ambiental's Australia FloodMap 100 year return period (shown in blue) with flood footprint from 2011 flood event (shown in red). This demonstrates strong correlation of predicted hazard against actual event.

At a Glance

  • Detailed visualisations of potential flood hazard throughout Australia
  • Fluvial, tidal and flash flooding risks all modelled
  • Three levels of detail
  • Can be integrated into your existing system
  • Covers every major city at high resolution using LiDAR and the entire country at lower resolution
  • Higher resolution coverage available on request
  • Hydrological and 2D hydraulic modelling
  • Integrated flow rate and rainfall data
  • Range of return periods

Our flood maps are used around the world by insurers, government agencies, property developers and emergency response services to visualise, assess and understand potential flood risk.

All of Australia’s capital cities, and approximately 60% of the population, have been modelled using high resolution LiDAR data accurate to ±15cm. The data includes river, tidal and surface water risk, all of which have been modelled rigorously while maintaining building-level precision. We can offer a full range of return periods to suit different uses.


Delivered as flood maps or flood risk data sets

With Australia FloodMap™ you can visually present flood risk scenarios to customers, brokers or underwriting teams – making concepts and executions considerably easier to explain and understand. The flood maps can be supplied as PDFs, or delivered as GIS layers or flat files that can be integrated into your GIS-compatible system.

To make it even easier to use, individual buildings or locations can be automatically classified as high, medium or low risk according to your individual risk exposure requirements.

Our team will advise you on how you can get the most from the data, and can support you with the integration.

Benefits

  • Visualisations of potential flood hazards make it easy to identify potential flooding issues
  • Helps insurers, government agencies, property developers and emergency response services make better decisions around flood risk
  • Assists in planning best responses to floods
  • Optimise pricing and improve loss ratios
  • Be more confident in your portfolio management
  • Quickly assess new underwriting opportunities

Click here for the technical details

You can choose between three Australia FloodMap™ levels of service.

Platinum FloodMap™

Topographical data LiDAR (Light Detection And Ranging)
Resolution 2–5 metres
Water sources Fluvial, tidal, pluvial (also groundwater, reservoir in certain territories)
Hydraulic model 2D
Hydrology Local best practice
Land use defined at: Building level
Infiltration/drainage defined at: Building level
Currently available for Australia, Switzerland, United Kingdom

Gold FloodMap™

Topographical data LiDAR (Light Detection And Ranging)
Resolution 5 metres
Water sources Fluvial, tidal, pluvial
Hydraulic model 2D
Hydrology Local best practice
Land use defined at: Street level
Infiltration/drainage defined at: Street level
Currently available for Australia, Czech Republic, Indonesia, Republic of Ireland, Switzerland, United Kingdom, USA (East Coast)

Silver FloodMap™

Topographical data LiDAR (Light Detection And Ranging)
Resolution 30 metres
Water sources Fluvial, tidal, pluvial
Hydraulic model 2D
Hydrology Local best practice
Land use defined at: City level
Infiltration/drainage defined at: City level
Currently available for Europe, East Asia, Australasia, North America, South America, parts of Africa

Flood sources

  • Fluvial (river)
  • Tidal (sea/estuary/coastal)
  • Flash (pluvial/surface water)

Layers available

  • Depths: maximum depth experienced during flood, in metres
  • Velocities: maximum velocity experienced during flood, in metres per second

Horizontal grid resolution

  • Urban: 5m
  • Rural: 30m

Topography

  • Urban: LiDAR (nominal vertical accuracy ±0.15m)
  • Rural: SRTM-based

Hydrology

  • Regional best practice – Australia Rainfall and Runoff Method
  • Rational method augmented with unit hydrograph approach (where gauges are available)

Modelled return periods

20 years to 10,000 years (probable maximum)

Hydraulics

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

Delivery formats

  • GIS layers ie shapefiles or raster (floating-point/classified). The data can be integrated with most GIS-compatible systems and third-party underwriting platforms, including LexisNexis, Touchstone, SpatialKey, and ESRI.
  • Appended to GNAF property-level database (ie the Australia FloodMap™ flood data can also be used to augment the NFID database to improve predictive power)
  • Delivered as flat files to integrate within your systems or online risk-checking service (eg RiskPro)
  • Physical/PDF maps also available

Update frequency

Annual

Licensing

  • Flexible licensing depending on your requirements
  • Transactional (ie ‘per hit’) and territorial pricing (eg Queensland only) options also available

The most complete view of flood risk in Australia currently available.

Mark Nunns

Get in Touch

To get a quote or to discuss what you need, contact Mark Nunns

Call me on 0203 857 8530

Or email at mark.nunns@ambiental.co.uk

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