Mediterranean Sea Daily Satellite Sea Surface Temperature Analysis

This dataset provides a daily, cloud-free analysis of foundation sea surface temperature for the Mediterranean Sea at a 2 km resolution. It was produced by Ifremer/CERSAT in France using optimal interpolation to merge observations from multiple satellite sensors, including AVHRR, AATSR, SEVIRI, AMSRE, and TMI. As the first Level 4 product from the GHRSST Project, it has been superseded by the newer ODYSSEA L4 product for this region.

Use Cases

• Monitoring daily sea surface temperature anomalies in the Mediterranean basin.
• Validating newer ocean temperature models against a foundational, multi-sensor satellite analysis.
• Studying the spatial patterns of foundation SST at a regional 0.02-degree grid resolution.
• Analyzing long-term temperature trends using a daily, cloud-free interpolated field.
• Calibrating other satellite SST measurements using the AATSR sensor as a reference standard.

Strengths

• Integrates observations from five distinct satellite sensor systems (AVHRR, AATSR, SEVIRI, AMSRE, TMI) for a complete picture.
• Provides a daily, cloud-free field at a high 0.02-degree (approx. 2 km) grid resolution for the Mediterranean Sea.
• Satellite observations are intercalibrated using the AATSR sensor as a reference, which was itself recalibrated with in-situ data.

Limitations

• The dataset has been officially superseded by the newer GHRSST Level 4 ODYSSEA product for the Mediterranean region.
• Key metadata such as row count, file size, and license information is unavailable across all sources.
• Sources conflict on the last updated date, listing both 2008-01-14 and 2026-04-01, suggesting potential metadata errors.

Provenance

Source

Ifremer/CERSAT (France), produced for the Group for High Resolution Sea Surface Temperature (GHRSST) Project.

Collection Method

Generated using optimal interpolation to merge microwave and infrared satellite SST observations.

Freshness

2026-04-01 15:29:37.296223

Geography

Mediterranean Sea