East Australian Current Sea Surface Temperature Mapping from Himawari-8, 2015-2017

Southeast Australia's coastal ocean dynamics are documented using Himawari-8 satellite sea surface temperature (SST) data from July 2015 to September 2017. Researchers from the cited study used a Topographic Position Index method to map the complex spatial structure of the East Australian Current (EAC). The analysis quantified the EAC's meanders, eddies, and seasonal encroachment patterns, correlating SST signatures with surface current speeds.

Use Cases

• Modeling the temporal evolution of ocean current meanders and eddies based on the described 65-100 day eddy-shedding timescale
• Analyzing seasonal patterns in current encroachment strength based on the described austral summer/winter cycle
• Correlating sea surface temperature signatures with surface current speeds based on the described ~60% overlap ratio
• Investigating coastal upwelling dynamics driven by the described 'encroach and accelerate' current mode

Strengths

• Uses very high spatiotemporal resolution Himawari-8 SST imagery as described
• Covers a 26-month study period from July 2015 to September 2017
• Quantifies specific temporal scales (65-80 days upstream, 90-100 days downstream) for variability
• Relates SST signatures to current speeds with a quantified area ratio of overlap

Limitations

• Column-level documentation is absent; field semantics must be inferred after download
• Row count is unknown, which may limit suitability assessment
• Data may reflect geographic/temporal bias inherent to the specific satellite source and study period

Provenance

Source

Geoscience Australia Data

Collection Method

Satellite remote sensing (Himawari-8) data processed with a Topographic Position Index method, correlated with an eddy-resolving numerical ocean model.

Time Range

July 2015 to September 2017

Freshness

Last updated 2026-04-20 01:11:45.093728; freshness should be verified

Geography

East Australian Current region, southeast coast of Australia, extending to the eastern coast of Tasmania