IMOS Multi-Sensor Sea Surface Temperature Data for Australia Region

Australia's coastal and surrounding ocean waters from 70E to 170W and 20N to 70S are covered by this sea surface temperature (SST) dataset. It is a multi-sensor L3S product from the Australian Ocean Data Network, providing three-day daytime averages derived from VIIRS and AVHRR sensors on polar-orbiting satellites. The data is presented on a 0.02-degree grid, with quality levels remapped using Sensor Specific Error Statistics.

Use Cases

• Monitoring regional ocean warming trends based on three-day averaged sea surface temperature composites.
• Validating ocean circulation and climate models using the multi-sensor, quality-controlled SST data.
• Studying diurnal and short-term SST variability in Australian waters using the daytime-specific data.
• Assessing marine heatwave events based on the high-resolution (0.02-degree) gridded temperature maps.

Strengths

• Integrates data from multiple satellite sensors (VIIRS and AVHRR) for potentially improved coverage.
• Provides data on a consistent 0.02-degree x 0.02-degree cylindrical equidistant grid.
• Employs a documented quality control process using Sensor Specific Error Statistics (SSES).
• Covers a broad geographic region relevant to Australian marine research.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data is specific to daytime periods and three-day composites, limiting analysis of diurnal cycles or finer temporal resolution.

Provenance

Source

Australian Ocean Data Network (AODN), likely via the Integrated Marine Observing System (IMOS).

Collection Method

Derived from sea surface temperature retrievals from VIIRS sensors on Suomi-NPP and JPSS satellites and AVHRR sensors on NOAA and Metop satellites.

Freshness

Last updated 2026-05-05 17:32:33.398022; freshness should be verified.

Geography

Region 70E to 170W, 20N to 70S (encompassing Australia's coastal and surrounding ocean waters).