Brisbane Flood Modeling Data for 27 Sub-Model Catchments

27 individual sub-models provide flood height, depth, and hazard results for the entire Brisbane City Council area across eight storm recurrence intervals. Brisbane City Council created this technical data to inform flood risk management policy and operations. The dataset includes reports, metadata, and results for existing floodplain conditions.

Use Cases

• Analyze flood height and depth variations across the 27 sub-models for different Average Recurrence Interval storm events.
• Map flood hazard (depth x velocity) results to identify high-risk zones within specific sub-model catchments.
• Use the sub-model metadata to understand the data inputs and assumptions for flood modeling in a particular area.
• Cross-reference results with the detailed reference map to assess flood scenarios for a location of interest.

Strengths

• Covers the entire Brisbane City Council area through 27 detailed sub-models.
• Provides results for eight specific storm recurrence intervals (2, 5, 10, 20, 50, 100, 500, 2000 year ARI).
• Includes three key flood metrics: height, depth, and hazard (depth x velocity).
• Published by Brisbane City Council with supporting reports and metadata for context.

Limitations

• Data format is primarily HTML, which is not ideal for direct quantitative analysis and requires extraction.
• Sample data and specific column schema are unavailable, making initial assessment difficult.
• Focus is on existing condition scenarios; future climate or development scenarios may not be included.

Provenance

Source

Brisbane City Council open data portal (data.brisbane.qld.gov.au).

Collection Method

Technical flood study comprising a series of 27 hydraulic sub-models.

Time Range

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Freshness

Last updated March 2026, indicating maintained and current modeling data.

Geography

Brisbane City Council local government area, Queensland, Australia.