WAMSI Node 2.2.2: Multi-Decadal Trends in the Leeuwin Current from IPCC Models

10 general circulation ocean models from the IPCC's 4th Assessment Report provide output for the Indonesian Throughflow and Leeuwin Current region. The dataset spans from the late 1800s to 2100 (or 2200 for some models) with monthly outputs of 3-dimensional fields including zonal and meridional current velocity, wind speed, and stress. It was contributed by the Australian Ocean Data Network and last updated in April 2026.

Use Cases

• Modeling multi-decadal trends in the Leeuwin Current based on IPCC climate projections.
• Analyzing 3-dimensional ocean current velocity and wind stress fields for the East Indian Ocean region.
• Studying the impact of the Indonesian Throughflow on regional oceanography using output from multiple global circulation models.
• Validating and comparing different ocean model resolutions (approximately 1 to 2.5 degrees) for a specific geographic subset.

Strengths

• Output from 10 distinct global ocean models contributing to the authoritative IPCC 4th Assessment Report.
• Covers a long temporal range from the late 1800s to 2100 (extending to 2200 for some models).
• Includes monthly 3-dimensional fields for current velocity and wind variables.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• Ocean model resolutions range from approximately 1 to 2.5 degrees, which may be coarse for some regional analyses.

Provenance

Source

Australian Ocean Data Network

Collection Method

Output extracted from 10 general circulation ocean models contributing to the IPCC 4th Assessment Report.

Time Range

Late 1800s to 2100 (2200 for some models)

Freshness

Last updated 2026-04-10 17:39:20.727100; freshness should be verified.

Geography

Subset encompassing the Indonesian Throughflow and Leeuwin Current region in the East Indian Ocean.