OSTIA-REP: Global Historical Sea Surface Temperature and Sea Ice Analysis

A global 0.05-degree gridded reprocessed analysis of sea surface temperature and ice concentration produced by the UK Met Office. It incorporates data from over 25 different satellite sensors and in-situ buoys, aiming to provide a consistent record for climate trend detection. The dataset is distributed through NASA's data.gov and the E.U. Copernicus Marine Service.

Use Cases

• Detecting long-term climate trends based on the consistent, reprocessed sea surface temperature record.
• Analyzing global sea ice concentration variability based on the optimal interpolation analysis.
• Validating numerical weather prediction models based on the high-resolution foundation SST data.
• Studying ocean-atmosphere interactions based on the multi-sensor satellite and in-situ data fusion.

Strengths

• Incorporates data from over 25 different satellite SST sensors and in-situ buoys.
• Provides a global analysis on a high-resolution 0.05-degree grid.
• Aims for accuracy and consistency for climate trend detection, unlike its near-real-time counterpart.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is reprocessed on a biannual frequency, which may not reflect the most recent conditions.

Provenance

Source

UK Meteorological Office (UKMO), distributed by NASA.

Collection Method

Produced using optimal interpolation (OI) on satellite and in-situ data.

Time Range

Historical reprocessing; data available to at least June 2022.

Freshness

Last updated 2026-03-13 02:32:23.651543; freshness should be verified.

Geography

Global