A 30-year timeseries of ocean observations underpins statistical models for storm frequency and intensity on Australia's eastern and southern coast. The Australian Ocean Data Network provides this dataset, which includes multivariate storm statistics like maximum significant wave height, duration, and peak storm surge. The analysis focuses on clustered storm events and employs a peaks-over-threshold approach with a 2.93 m wave height threshold.
Use Cases
- Model coastal erosion risk based on clustered storm event frequency and intensity.
- Estimate storm surge hazard using peak storm surge and wave height statistics.
- Analyze temporal patterns of storm occurrence based on event duration and spacing models.
- Fit marginal distributions to storm variables like wave height using Generalised Pareto (GP) models.
- Construct joint dependency structures for storm magnitude statistics using Copula functions.
Strengths
- Based on a 30-year timeseries of ocean observations.
- Storm events defined using a peaks-over-threshold approach with a specific 2.93 m wave height threshold.
- Multivariate analysis includes wave height, period, direction, duration, surge, and time of occurrence.
- Statistical models account for sub-annual variations, temporal dependency, and finite event duration.
Limitations
- Row count is unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- Data may reflect geographic bias inherent to data_gov_au, focusing on a central coast of New South Wales study site.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Independent storm events extracted from a 30-year observational timeseries, manually checked against sea-level pressure data.
- Time Range
- 30-year period (specific dates unknown).
- Freshness
- Last updated 2026-04-16 14:57:44.760696; freshness should be verified.
- Geography
- Eastern and southern coast of Australia, with a preliminary analysis site on the central coast of New South Wales.