Port Phillip Bay Coastal Erosion Extent for 2100 Under 0.8m Sea Level Rise

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 produced by the Department of Energy, Environment and Climate Action and was last updated in June 2026. The dataset includes modelled erosion extents for a 1% Annual Exceedance Probability storm event under a 0.8m sea level rise scenario projected for the year 2100.

Use Cases

• Model regional coastal erosion risk based on projected sea level rise scenarios.
• Assess storm tide inundation hazard for different sea level rise and rainfall conditions.
• Map shallow groundwater hazard extents for coastal planning.
• Compare hazard percentile outcomes (e.g., 5th, 50th, 95th) for probabilistic risk analysis.

Strengths

• Includes multiple hazard types (erosion, inundation, groundwater) across a range of sea level rise scenarios.
• Storm tide inundation layers incorporate combined 95th, 50th, and 5th percentile models.
• Erosion hazard extents are modelled at the 95th percentile.
• Accompanied by technical reports from CSIRO (2022), Water Technology (2023), and Kennedy (2022).

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 its granular application.

Provenance

Source

Department of Energy, Environment and Climate Action

Collection Method

Modelled spatial outputs from coastal hazard scenarios.

Time Range

Projections include years 2010, 2040, 2070, and 2100.

Freshness

Last updated 2026-06-14 20:49:50.864318; freshness should be verified.

Geography

Port Phillip Bay, Victoria, Australia.