Port Phillip Bay Coastal Hazard Assessment: Inundation Extent for 0.5m Sea Level Rise

Port Phillip Bay coastal hazard assessment provides spatial layers for modelled erosion, inundation, and groundwater scenarios. The dataset includes storm tide inundation extents for a 1% Annual Exceedance Probability across multiple sea level rise scenarios, including 0.5m with rainfall. It was produced by CSIRO, Water Technology, and Kennedy (2022-2023) and is managed by the Department of Energy, Environment and Climate Action.

Use Cases

• Model regional-scale coastal flooding risk based on combined storm tide and rainfall scenarios.
• Assess erosion hazard extents for different sea level rise projections and timeframes.
• Identify areas at risk from shallow groundwater rise under various sea level rise conditions.
• Support regional planning and policy development using the modelled 95th, 50th, and 5th percentile hazard layers.

Strengths

• Includes multiple hazard types (inundation, erosion, groundwater) across consistent scenarios.
• Storm tide inundation layers incorporate three modelled percentiles (95th, 50th, 5th).
• Technical reports from CSIRO (2022), Water Technology (2023), and Kennedy (2022) provide detailed methodology.
• Data is provided in multiple geospatial formats (TAB, SHP, GDB, etc.) for compatibility.

Limitations

• The product is not suitable for individual property scale assessments, as stated in the description.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Department of Energy, Environment and Climate Action

Collection Method

Modelled spatial outputs from coastal hazard scenarios.

Freshness

Last updated 2026-06-15 03:34:01.043282

Geography

Port Phillip Bay, Victoria, Australia