High-Resolution Coastal Wave Modelling of 12 East Coast Lows (2001–2016) Along Southeast Australia Using WaveWatch III and Pseudo Global Warming Under RCP8.5 Climate Scenario – Part 2

This dataset supports a study on the coastal wave impacts of East Coast Lows (ECLs) along the southeast coast of Australia. It includes high-resolution wave model outputs generated using a triple-nested WaveWatchIII framework that includes a unstructured mesh, resolving wave dynamics down to 100 m nearshore resolution. The simulations are based on 12 historically significant ECL events between 2001 and 2016, re-simulated under a future RCP8.5 climate scenario using the Pseudo Global Warming (PGW) approach.

# East Coast Lows:
1. 26–30 July 2001 – Inland Trough
2. 22–24 March 2005 – Southern Secondary Low
3. 06–08 September 2006 – Southern Secondary Low
4. 07–10 June 2007 – Easterly Trough Low
5. 13–17 June 2007 – Southern Secondary Low
6. 18–20 June 2007 – Easterly Trough Low
7. 25–29 June 2007 – Easterly Trough Low
8. 22–24 August 2008 – Southern Secondary Low
9. 04–07 September 2008 – Easterly Trough Low
10. 19–24 February 2013 – Ex-Tropical Cyclone
11. 19–22 April 2015 – Southern Secondary Low
12. 03–06 June 2016 – Easterly Trough Low

# Data Sources and Inputs:
1. Atmospheric Forcing: HiRes-MESECA dataset, providing high-resolution meteorological fields for each ECL event under both historical and PGW-modified future conditions.
2. Wave Model: WaveWatch III (WW3), configured with triple-nesting to achieve fine-scale coastal resolution.
3. Bathymetry and Coastal Boundary: NSW LiDAR Topobathy2018+ GA2021. Unstructured mesh generated using OceanMesh2D. Wave outputs are extracted at the 10 m isobath to represent nearshore wave conditions.

# Variables Included:
Significant wave height (Hs), Peak wave period (Tp), Wave direction, Cumulative wave power.

# Spatial Coverage:
Southeast coast of Australia, focusing on New South Wales

# Temporal Coverage:
12 ECL events between 2001 and 2016

# Climate Scenario:
RCP8.5 (Representative Concentration Pathway 8.5), using PGW-modified atmospheric conditions

# Format:
NetCDF file format for point (waverider buoy locations) and spatial outputs of wave data

# Implications:
Coastal hazard assessment, climate change impact studies, regional wave studies,
coastal planning and infrastructure resilience analysis