Port Phillip Bay Coastal Hazard Assessment for Erosion Extent

The Port Phillip Bay Coastal Hazard Assessment is a digital dataset consisting of multiple spatial layer outputs from modelled erosion, inundation and groundwater hazard scenarios. It is recommended for use at the regional scale around Port Phillip Bay and was produced by CSIRO, Water Technology, and Kennedy, with technical reports published in 2022 and 2023. The dataset includes erosion extents for a 1% Annual Exceedance Probability under various Sea Level Rise scenarios.

Use Cases

• Model regional-scale coastal erosion risk based on projected sea level rise scenarios.
• Assess storm tide inundation extents for different sea level rise and rainfall conditions.
• Identify areas with shallow groundwater hazards likely to be impacted by sea level rise.
• Support regional planning and policy development using modelled hazard percentile layers.

Strengths

• Includes multiple hazard types: erosion, inundation, and groundwater.
• Provides data for a range of Sea Level Rise scenarios from 0m to 1.4m.
• Model outputs incorporate percentile ranges (e.g., 95th, 50th, 5th) for uncertainty.
• Supported by detailed technical reports from CSIRO (2022) and Water Technology (2023).

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• The product is not suitable for individual property scale assessments, limiting granular use.

Provenance

Source

Department of Energy, Environment and Climate Action

Collection Method

Modelled spatial layers from coastal hazard assessments.

Time Range

Scenarios project to years 2040, 2070, and 2100.

Freshness

Last updated 2026-06-15 06:10:09.476601; freshness should be verified.

Geography

Port Phillip Bay, Australia.