Australian Continental Shelf Bed Shear Stress Exposure from 1997 to 2005

An 8-year period (March 1997 to February 2005) of combined flow bed shear stress data computed from numerical ocean models for the entire Australian continental shelf. Geoscience Australia produced this dataset to quantify seabed exposure to oceanographic processes like waves and currents. The outputs include three regionalisation methods for classifying exposure levels based on stress magnitude and frequency.

Use Cases

• Classifying seabed exposure regions based on the spectral regionalisation method described.
• Analyzing the relationship between shear stress frequency and physical sediment properties like grain size.
• Assessing the balance between stress magnitude and work frequency on the seabed for habitat mapping.
• Modeling the influence of high-frequency (diurnal) versus low-frequency (synoptic) oceanographic events on benthic environments.

Strengths

• Covers the entire Australian continental shelf, providing national-scale spatial coverage.
• Based on an 8-year time series (March 1997-February 2005), offering a multi-year temporal perspective.
• Derived from a suite of numerical models predicting multiple oceanic processes (waves, tides, winds).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for large-scale modeling.
• Data is from 1997-2005; freshness should be verified for contemporary applications despite the 2026 metadata update.

Provenance

Source

Geoscience Australia Data

Collection Method

Output from a suite of numerical ocean models was used to compute combined flow bed shear stresses.

Time Range

March 1997 to February 2005

Freshness

Last updated 2026-05-14 09:37:53.912654; freshness should be verified

Geography

Australian continental shelf