GHRSST Global Daily Sea Surface Temperature Analysis

GHRSST Level 4 OSPO Global Foundation Sea Surface Temperature Analysis is a daily operational product from the Office of Satellite and Product Operations. It provides a global, optimally interpolated sea surface temperature field on a 0.054-degree grid, blending data from multiple satellite sensors and in-situ sources. The dataset is produced for use as a boundary condition in Numerical Weather Prediction models and adheres to GHRSST Data Processing Specification version 2.

Use Cases

• Providing lower boundary condition inputs for operational Numerical Weather Prediction (NWP) models.
• Analyzing global sea surface temperature patterns and anomalies for climate studies.
• Validating other satellite-derived or model-based sea surface temperature products.
• Studying diurnal temperature variations using combined daytime and nighttime satellite retrievals.

Strengths

• Blends data from five satellite sensor systems (AVHRR, VIIRS, GOES, JAMI) and in-situ platforms for a complete analysis.
• Provides daily operational updates on a consistent global 0.054-degree grid.
• Adheres to the standardized GHRSST Data Processing Specification (GDS) version 2 format.

Limitations

• Specific column names, row counts, and dataset size are not provided by any source.
• Sources conflict on the last updated date, with one listing 2026-03-05 and another listing null.

Provenance

Source

Office of Satellite and Product Operations (OSPO) / GHRSST

Collection Method

Optimal interpolation (OI) applied to multi-satellite retrievals and in-situ data from ships, drifting and moored buoys.

Time Range

Daily production suggests a continuous time series, but specific start date is not provided.

Freshness

2026-03-05 23:09:46.937004

Geography

Global coverage.