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A new tropical cyclone wind hazard assessment for Australia

Created 17/10/2025

Updated 17/10/2025

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The 2018 Tropical Cyclone Hazard Assessment (TCHA18) provides an evaluation of the likelihood and intensity (“how big and how often”) of the occurrence of tropical cyclone (TC) winds across the Australian region, covering mainland Australia, islands and adjacent waters. It is a probabilistic evaluation of the expected maximum gust wind speeds generated by TCs, with a range of average recurrence intervals (ARIs) or conversely, average exceedance probabilities (AEPs). The TCHA18 provides hazard profiles (ARI versus wind speed) for over 400 locations in Australia and neighbouring regions, and a catalogue of synthetic TC events that can be used for scenario exercises. The TCHA18 also establishes a baseline for the understanding of TC hazard in the current climate against which projections of future TC wind hazard can be compared. We will demonstrate data access methods and applications of the TCHA18 for a range of users. A key component of the TCHA18 is the synthetic event catalogue that contains details of all events that informed the probabilistic assessment. The event catalogue can be interrogated by users to find TC events for more detailed modelling, leading to impact assessment studies. Presented at the Australian Meteorological and Oceanographic Society Annual Meeting and the International Conference on Tropical Meteorology and Oceanography (AMOS-ICTMO 2019) Conference

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Additional Info

Field Value
Title A new tropical cyclone wind hazard assessment for Australia
Language English
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/513c68fe-6193-45b9-bc14-b04e3bdcd6b2
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 05/11/2018
Geospatial Coverage
Map data © OpenStreetMap contributors
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}
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "A new tropical cyclone wind hazard assessment for Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/a-new-tropical-cyclone-wind-hazard-assessment-for-australia