Port Phillip Bay Coastal Hazard Assessment: Inundation Extent for 0.2m Sea Level Rise

Multiple spatial layers from modelled erosion, inundation, and groundwater hazard scenarios for Port Phillip Bay. The dataset includes storm tide inundation extents for a 1% Annual Exceedance Probability across sea level rise scenarios from 0m to 1.4m, presented as combined vector layers incorporating modelled 95th, 50th, and 5th percentiles. The product was developed by CSIRO, Water Technology, and Kennedy (2022-2023) for the Department of Energy, Environment and Climate Action.

Use Cases

• Model regional-scale coastal inundation risk based on combined storm tide and rainfall scenarios.
• Assess erosion hazard extents for future sea level rise projections.
• Identify areas with shallow groundwater hazards likely to be exacerbated by sea level rise.
• Support regional adaptation planning based on percentile-based hazard modelling.

Strengths

• Covers three distinct hazard types: storm tide inundation, erosion, and groundwater.
• Includes multiple sea level rise scenarios from 0m to 1.4m.
• Storm tide inundation layers incorporate 95th, 50th, and 5th percentile modelled outcomes.
• Technical reports from CSIRO (2022), Water Technology (2023), and Kennedy (2022) provide detailed methodology.

Limitations

• The product is explicitly not suitable for individual property scale assessments.
• Row count and column-level documentation are unknown, requiring inspection after download.
• Data may reflect geographic bias inherent to the Port Phillip Bay study area.

Provenance

Source

Department of Energy, Environment and Climate Action

Collection Method

Modelled scenarios based on technical reports from CSIRO, Water Technology, and Kennedy.

Freshness

Last updated 2026-06-15 00:00:57.610628

Geography

Port Phillip Bay, Australia