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

Southeast Australia's coastal ocean dynamics are analyzed using high-resolution Himawari-8 sea surface temperature (SST) data from July 2015 to September 2017. The dataset, produced by Xie et al. (2020) and hosted by the Australian Ocean Data Network, maps the spatial structure and temporal evolution of the East Australian Current (EAC) system, including its meanders, eddies, and encroachment patterns.

Use Cases

• Tracking the temporal evolution of EAC meanders and offshoots based on the described SST signatures.
• Analyzing eddy-shedding timescales (65-100 days) based on the temporal wavelet analyses mentioned.
• Investigating seasonal cycles in current encroachment strength (stronger in austral summer) based on the study findings.
• Mapping the spatial variability of EAC separation and extensions using the Topographic Position Index (TPI) method described.

Strengths

• Covers a 26-month study period from July 2015 to September 2017.
• Uses very high spatiotemporal resolution Himawari-8 SST images.
• Results validated against an eddy-resolving numerical ocean model, with an area ratio of overlap ~60% between SST and current speed signatures.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Australian Ocean Data Network

Collection Method

Derived from Himawari-8 satellite SST data using a Topographic Position Index (TPI) method.

Time Range

July 2015 to September 2017

Freshness

Last updated 2026-04-10 22:05:48.006564; freshness should be verified.

Geography

Southeast coast of Australia, including the East Australian Current path and the eastern coast of Tasmania.