IMOS Multi-Sensor Sea Surface Temperature, 0.02-Degree Grid for Australia Region

IMOS provides a multi-sensor Level-3 Super-Collated sea surface temperature product for a single 24-hour period. The data is derived from VIIRS and AVHRR sensors on polar-orbiting satellites and presented as a 0.02-degree cylindrical equidistant projected map covering 70E to 170W, 20N to 70S. Each grid cell contains a 24-hour average of the highest quality SSTs, weighted by sensor overlap area.

Use Cases

• Modeling regional ocean heat content based on daily sea surface temperature composites.
• Validating satellite sensor performance by comparing multi-sensor SST retrievals.
• Analyzing diurnal temperature variations using day and night time observation filtering criteria.
• Studying oceanographic phenomena in the Australian region based on the defined geographic coverage.

Strengths

• Data is derived from multiple satellite sensors (VIIRS on Suomi-NPP/JPSS and AVHRR on NOAA/Metop), likely increasing spatial and temporal coverage.
• Product uses a defined quality control process, rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night).
• Spatial resolution is specified as a 0.02-degree x 0.02-degree grid.

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 represents a single 24-hour period, limiting longitudinal analysis without additional files.

Provenance

Source

Australian Ocean Data Network (via IMOS - Integrated Marine Observing System)

Collection Method

Derived from satellite retrievals (VIIRS, AVHRR) and composited using Sensor Specific Error Statistics (SSES).

Time Range

Covers a single 24-hour period; specific date is not provided in the input.

Freshness

Last updated 2026-07-13 21:09:05.693710; freshness should be verified.

Geography

Covers the region 70E to 170W, 20N to 70S, which includes waters around Australia and the South Pacific.