Gippsland Lakes 1% AEP Mean Sea Level Inundation Extent

The GIPPSLAND LAKES Local Coastal Hazard Assessment (LCHA) provides the spatial extent of a 1% Average Exceedance Probability (AEP) water level for the Gippsland Lakes. The data was produced by the Department of Energy, Environment and Climate Action using hydrodynamic modelling that combines catchment inflows, ocean levels, and wind setup. The dataset was last updated on 2026-04-09.

Use Cases

• Mapping flood risk zones based on the 1% AEP water level extent.
• Assessing coastal hazard impacts for infrastructure planning based on the modelled inundation.
• Informing land-use policy and development controls based on the Local Coastal Hazard Assessment.
• Validating or calibrating other hydrodynamic models for the Gippsland Lakes using the published extent.

Strengths

• Based on hydrodynamic modelling incorporating catchment inflows, ocean levels, and wind setup.
• Covers the Gippsland Lakes coastal environment, a defined geographic area.
• Available in multiple geospatial formats (SHP, TAB, GDB, DWG, DXF).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Users must consult external project reports to understand the full limitations of the data.

Provenance

Source

Department of Energy, Environment and Climate Action (data_gov_au)

Collection Method

Derived from hydrodynamic modelling as part of a Local Coastal Hazard Assessment (LCHA).

Freshness

Last updated 2026-04-09 02:04:24.636743; freshness should be verified.

Geography

Gippsland Lakes, Australia