GHRSST Standards for formatting SST data were presented at the Ocean Best Practices Workshop on 10th October 2023, with a dedicated intervention on

Operational Sea-Surface Temperature data retrieved from satellites.

Speaker: Ioanna Karagali (DMI)

This presentation gave an overview of the operational exploitation of SST derived from satellites. Specific user examples will be given together with an overview of GHRSST. Current GHRSST priorities include high-resolution SST around coasts, improvements in high-latitude SST and feature resolution.

The workshop was organised by IOC/ Ocean Best Practices System Steering Group. The OBPS Workshop VII, 2023 explores the 10 selected challenges set by the UN Ocean Decade and the ways that Ocean best practices support some “common” solutions for collective impact. Challenge 7 – Expand the Global Ocean Observing System: Ensure a sustainable ocean observing system across all ocean basins that delivers accessible, timely, and actionable data and information to all users.

Operational Sea-Surface Temperature data retrieved from satellites by Anne G. O’Carroll, Jacob L. Høyer, Ioanna Karagali, Chiara Bearzotti, Erika Hayashi and members of the GHRSST International Science Team

Sea surface temperature (SST) is a fundamental physical variable for understanding, quantifying and predicting complex interactions between the ocean and the atmosphere. Such processes dictate how heat from the sun is redistributed across the global oceans, directly impacting large- and small-scale weather and climate patterns. The provision of daily maps of global SST for operational systems, climate modelling and the broader scientific community is now a mature and sustained service coordinated by the Group for High Resolution Sea Surface Temperature (GHRSST) and the CEOS SST Virtual Constellation (CEOS SST-VC).  GHRSST ( is comprised of SST experts representing many communities including space agencies, meteorological agencies and universities around the world. The partnership between GHRSST and the CEOS SST-VC is organised with GHRSST implementing the framework for SST-VC activities.  GHRSST coordinates a suite of global high-resolution SST products. Data processing and distribution are organised through Data Assembly Centres and products are provided according to the community agreed GHRSST Data Processing Specification (GDS) V2.0 common specification. SST products rely on a combination of low earth orbit infrared and microwave satellite imagery, geostationary orbit infrared satellite imagery, and in situ data from moored and drifting buoys, Argo floats, and Fiducial Reference Measurements (FRM) for product validation.