1 in 100 year flood extent

Polygon data delineating modelled statistical flood extent with an Average Recurrence Interval (ARI) of 100 years. For historical/actual flood extents, refer to 'Historic_extent' layer. Also known as the 1 in 100 year flood layer, it is used, amoung other things, in the creation of 'Land Subject to Innundation' areas as used in Planning Scheme Zones. The 1 in 100 year data is not restricted. This data is part of a group of layers depicting a range of statistical ARI extents. Current layers include 5, 10, 20, 30, 50, 100, 200, 500, 1000 year intervals, each in a seperate dataset. The layer called EXTENT_PMF represents areas of 'probable maximum flood' and is also part of this group. The data is statistically derived using hydrological models, historic flood extents and heights.

Data and Resources

Additional Information

Field Value
Published (Metadata record) 30/09/2021
Last updated 30/09/2021
Organisation Department of Environment, Land, Water & Planning
License Creative Commons Attribution 4.0 International
Full metadata URL https://metashare.maps.vic.gov.au/geonetwork/srv/api/records/23331157-60c0-525f-81df-8a154c35f2b9/formatters/sdm-html?root=html&output=html