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

July 2015 to September 2017 Himawari-8 satellite sea surface temperature data used to map the East Australian Current. The dataset, from a 2020 study published in the Journal of Geophysical Research: Oceans, enables analysis of the current's spatial structure and temporal evolution. It captures meanders, offshoots, eddies, and extensions using a Topographic Position Index method.

Use Cases

• Analyzing the temporal evolution of the East Australian Current's encroachment based on the 26-month time series.
• Mapping the spatial structure of ocean eddies and meanders based on the Topographic Position Index method described.
• Investigating seasonal cycles in current proximity to the coast based on the described austral summer/winter patterns.
• Relating sea surface temperature signatures to surface current speeds based on the described model comparison.
• Studying eddy-shedding timescales (65-100 days) based on the temporal wavelet analyses mentioned.

Strengths

• Very high spatiotemporal resolution from Himawari-8 satellite imagery.
• Covers a 26-month study period from July 2015 to September 2017.
• Quantitatively relates SST and current speed signatures with an overlap area ratio of ~60%.
• Documents specific eddy-shedding timescales of 65-80 days upstream and 90-100 days downstream.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific study region off southeast Australia.

Provenance

Source

Australian Ocean Data Network, based on research by Xie et al. (2020).

Collection Method

Derived from Himawari-8 satellite sea surface temperature data using a Topographic Position Index mapping method.

Time Range

July 2015 to September 2017

Freshness

Last updated 2026-05-05 00:06:12.394030; freshness should be verified.

Geography

East Australian Current region off the southeast coast of Australia, including the eastern coast of Tasmania.