Gippsland Lakes 10% AEP Flood Inundation with 0.2m Sea Level Rise

The Gippsland Lakes Local Coastal Hazard Assessment provides the extent of a 10% Average Exceedance Probability water level event, incorporating 0.2 meters of sea level rise based on hydrodynamic modelling. It was produced by the Department of Energy, Environment and Climate Action, with the dataset last updated on April 8, 2026. The hazard extent results from a combination of catchment inflows, coastal ocean levels, and wind setup.

Use Cases

• Assess coastal flood risk for infrastructure planning based on the 10% AEP water level extent.
• Model climate change impacts on coastal environments using the integrated 0.2m sea level rise condition.
• Inform emergency management and evacuation planning based on the hydrodynamic-modelled inundation area.
• Support land-use zoning and development controls by identifying areas susceptible to combined catchment and coastal flooding.

Strengths

• Explicitly models a 10% Average Exceedance Probability flood event combined with a 0.2m sea level rise.
• Based on hydrodynamic modelling that incorporates catchment inflows, ocean levels, and wind setup.
• Provided in multiple geospatial formats (SHP, GDB, DXF, etc.) for compatibility with various GIS tools.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial resolution are unknown, which may limit suitability assessment.
• Users must consult external project reports to fully understand the modelling assumptions and data limitations.

Provenance

Source

Department of Energy, Environment and Climate Action

Collection Method

Derived from hydrodynamic modelling of water levels combining catchment inflows, coastal ocean levels, and wind setup.

Freshness

Last updated 2026-04-08 23:56:37.454601; freshness should be verified.

Geography

Gippsland Lakes coastal environment, Australia.