Barchan Sand Bank Morphology and Migration in Western Torres Strait

Large barchan-shaped sand deposits in the northwest Torres Strait migrate 10-15 meters west per year, as observed via satellite imagery. The Australian Ocean Data Network hosts this dataset, which was last updated on 2026-06-27. These features exhibit characteristics of both subaerial dunes and subaqueous sand banks, influenced by net westward currents driven by southeast trade winds.

Use Cases

• Modeling sediment transport pathways based on described bank migration rates
• Analyzing the influence of unidirectional current regimes on barchan form development
• Classifying submarine bedforms based on the presence of mutually evasive channels
• Studying the interaction between wind-driven currents and monsoon season residuals on geomorphic features

Strengths

• Specific migration rate of 10-15 meters west per year is provided
• Analysis is based on satellite imagery observations
• Dataset is hosted by the authoritative Australian Ocean Data Network

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Freshness should be verified as the last update date is in the future (2026-06-27)

Provenance

Source

Australian Ocean Data Network

Collection Method

Likely derived from satellite imagery analysis

Freshness

Last updated 2026-06-27 20:47:23.551709

Geography

Western Torres Strait, Northern Australia