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

A multi-sensor Level 3 Super-collated sea surface temperature product for a single 24-hour period, derived from VIIRS and AVHRR sensors on polar-orbiting satellites. The data is provided as a 0.02-degree by 0.02-degree cylindrical equidistant projected map covering the region 70E to 170W, 20N to 70S. It is produced by the Australian Ocean Data Network, with a last update recorded on 2026-07-10.

Use Cases

• Modeling regional ocean heat content based on daily averaged sea surface temperature observations.
• Validating satellite sensor performance by comparing multi-sensor composite data.
• Analyzing diurnal temperature cycles using day and night observations with different wind speed thresholds.
• Studying oceanographic phenomena in the Australian region based on the 0.02-degree resolution gridded data.

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 specific quality control process, rejecting observations with low surface wind speeds (<6 m/s by day and <2 m/s at night) and applying sensor-specific error statistics.
• Grid resolution is explicitly defined as 0.02 degrees by 0.02 degrees over a large geographic region (70E to 170W, 20N to 70S).

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

Provenance

Source

Australian Ocean Data Network, referencing IMOS (Integrated Marine Observing System) SST products.

Collection Method

Derived from satellite retrievals, composited, and averaged as described in Griffin et al. (2017).

Time Range

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

Freshness

Last updated 2026-07-10 03:02:15.143547; freshness should be verified.

Geography

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