Beachmere Shoreline Progradation Rates Over 1,700 Years Based on Beach Ridge Dating

Australian Ocean Data Network provides a dataset on shoreline changes at Beachmere, southeastern Queensland, Australia. It contains optical ages for seven beach ridges, documenting accretion rates and relative sea level over the last 1,700 years. The data suggests a shift in accretion patterns potentially linked to European settlement.

Use Cases

• Modeling historical shoreline progradation rates based on dated beach ridge sequences.
• Analyzing changes in relative sea level over the last 1,700 years based on optical dating evidence.
• Investigating the impact of sediment supply changes, such as from European settlement, on coastal accretion patterns.
• Calibrating or validating coastal evolution models using the documented shift from well-spaced to closely-spaced ridges.

Strengths

• Provides a 1,700-year temporal record of shoreline change.
• Includes specific progradation rates (e.g., ~0.16 m yr-1, ~0.40 m yr-1) derived from optical dating.
• Documents a clear morphological shift between ridge sets, with spacing changing from ~95 m to <33 m.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic/temporal bias inherent to a single-site study.

Provenance

Source

Australian Ocean Data Network

Collection Method

Optical dating of beach ridge sediments.

Time Range

Last 1,700 years

Freshness

Last updated 2026-04-28 14:46:57.883760; freshness should be verified.

Geography

Beachmere, southeastern Queensland, Australia