Port Phillip Bay Coastal Hazards Assessment (PPBCHA) Hydrodynamic and Wave Model

This dataset contains output from a 2D hydrodynamic and wave model (Semi-implicit Cross-scale Hydroscience Integrated System Model and Wind Wave Model III, SCHISM-WWMIII), configured over Port Phillip Bay including significant portions of the surrounding ocean and Bass Strait.

The model simulates water levels due to astronomical tides, weather, waves and aspects of wave-flow interaction over multiple decades, allowing for full consideration of the dynamics of extreme sea levels and waves within the Bay. Simulations were also carried out to assess changes in dynamics associated with various sea level rise scenarios: 0.2, 0.8 and 1.4m above historical mean sea level.

This collection contains:
- A 35-year hindcast (1980 - 2014)
- 2x 20-year simulations based on the period 1980-1999 with additional sea level imposed on the model boundary: 0.2m and 0.8m
- 1x 35-year simulation based on the period 1980-2014 with additional sea level imposed on the model boundary of 1.4m
to simulate the effects of possible future sea level increases.

The simulation of several decades of climate information was required to ensure that the hazard assessments were predicated on credible meteorological, hydrodynamic and climate information, at a scale capable of resolving most local coastal defences and associated infrastructure.