CRC-SI Project 114: Reconciling Bathymetric Height Datums for Australian Coastal Data

Australian research focuses on reconciling vertical height datums for bathymetric data to improve compatibility between terrestrial and marine datasets. The report presents a methodology for calculating uncertainty for Mean Sea Level observations relative to a long-term reference epoch. The work was published by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Improve coastal zone modeling by reconciling bathymetric datums mentioned in the description
• Assess uncertainty for Mean Sea Level observations based on the presented methodology
• Aid in creating an ellipsoidal MSL surface with uncertainties as described in the report
• Evaluate alternative options for defining the intertidal zone about MSL in Australia

Strengths

• Report focuses on a specific, documented problem of datum disparities in Australia.
• Methodology for calculating uncertainty for short-span MSL observations is presented.
• Last updated date is explicitly provided: 2026-04-10 21:48:26.069513.

Limitations

• Data format is HTML, which may not be directly machine-readable for analysis.
• Column-level documentation and sample data are unavailable.
• The report notes that methodologies for computing uncertainties of LAT and HAT tidal planes were not developed.

Provenance

Source

Australian Ocean Data Network

Collection Method

Research report from Co-operative Research Centre for Spatial Information (CRC-SI) Project 114.

Time Range

Report last updated in 2026; temporal coverage of underlying data is unspecified.

Freshness

Last updated 2026-04-10 21:48:26.069513

Geography

Australia, with a focus on coastal regions.