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

Late 1800s to 2100 (or 2200) monthly outputs from 10 global ocean models contributing to the IPCC 4th Assessment Report, focusing on the Indonesian Throughflow and Leeuwin Current region. The dataset includes 3D fields of zonal and meridional current velocity, wind speed, and stress. It was aggregated by the Australian Ocean Data Network.

Use Cases

• Analyzing multi-decadal trends in ocean currents based on the century-scale model outputs.
• Validating regional climate models against IPCC AR4 ensemble data for the East Indian Ocean.
• Studying the impact of climate change on the Leeuwin Current based on projected data to 2100/2200.
• Investigating wind-current interactions based on the included 3D wind speed and stress fields.

Strengths

• Data spans over two centuries, from the late 1800s to 2100 (2200 for some models), enabling long-term trend analysis.
• Comprises output from 10 different general circulation models, providing an ensemble view for uncertainty assessment.
• Includes full 3-dimensional fields of key oceanographic variables (current velocity, wind speed, stress).

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 ML tasks.
• Ocean model horizontal resolutions range from approximately 1 to 2.5 degrees, which is coarse for regional-scale features.

Provenance

Source

Australian Ocean Data Network

Collection Method

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

Time Range

Late 1800s to 2100 (2200 for some models)

Freshness

Last updated 2026-06-04 07:41:59.196294; freshness should be verified.

Geography

Global, with a subset extracted for the Indonesian Throughflow and Leeuwin Current region in the East Indian Ocean.