GHRSST Level 4 CMC0.1deg: Daily Global Sea Surface Temperature Analysis

GHRSST Level 4 CMC0.1deg is a daily global sea surface temperature (SST) analysis produced operationally by the Canadian Meteorological Center. It merges infrared satellite data from NOAA-18,19 and METOP-A,B, microwave data from AMSR2 on GCOM-W, and in situ observations from ICOADS drifting buoys and ships. The dataset uses a statistical interpolation method that incorporates the previous day's analysis as a background field and adheres to the GHRSST Data Processing Specification (GDS) version 2.

Use Cases

• Modeling ocean heat content and climate patterns based on daily, global foundation sea surface temperature data.
• Assimilating multi-source satellite and in-situ observations into numerical weather and ocean prediction models.
• Monitoring marine heatwaves and long-term SST trends for climate change studies.
• Validating satellite-derived SST products from instruments like AVHRR and AMSR2 against a blended analysis.

Strengths

• Integrates data from multiple satellite platforms (NOAA-18,19, METOP-A,B, AMSR2) and in-situ sources (ICOADS).
• Produced on a daily operational basis using a statistical interpolation method with a prior background field.
• Adheres to the standardized GHRSST Data Processing Specification (GDS) version 2 format.

Limitations

• Column-level documentation is absent; field semantics and data structure must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment for large-scale ML projects.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Operational daily analysis merging infrared and microwave satellite SST with in-situ buoy and ship observations.

Time Range

Daily production suggests ongoing temporal coverage, but specific start date is not provided.

Freshness

Last updated 2026-03-13 02:32:55.103146; freshness should be verified.

Geography

Global foundation sea surface temperature analysis at 0.1-degree resolution.