NASA GHRSST Project: Multi-Source Sea Surface Temperature Satellite Data

Daily and hourly gap-free sea surface temperature maps are provided from multiple satellite sensors. The data includes products from the NOAA ACSPO system using the G18/ABI and H09/AHI satellites, and CNR MED L4 products for the Black Sea, with spatial resolutions ranging from 2km to 0.01 degrees. Data is produced in near-real-time with hourly updates and is available under a CC-BY-4.0 license.

Use Cases

• Monitoring daily sea surface temperature anomalies in the Black Sea based on the 0.0625-degree resolution L4 product.
• Analyzing high-frequency SST variability from geostationary satellites based on the G18 ABI's 10-minute temporal sampling.
• Validating ocean model outputs against in-situ measurements using SST data validated against the NOAA iQuam system.
• Studying diurnal warming cycles based on the subskin and depth SST measurements derived from infrared radiometers.

Strengths

• Provides multiple high-resolution products, including a 0.01-degree grid over the Black Sea and 2km resolution at nadir from the G18 satellite.
• Near-real-time data updates hourly, with several hours latency, supporting operational monitoring.
• Data is validated against quality-controlled in-situ data from the NOAA iQuam system and monitored in the NOAA SQUAM system.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• The description combines details for several distinct products, which may cause confusion about specific file contents.

Provenance

Source

NASA GHRSST Project, NOAA ACSPO system, and CNR MED.

Collection Method

Derived from infrared measurements collected by satellite radiometers (ABI, AHI) and statistical interpolation.

Time Range

Operational product; G18 satellite launched March 1, 2022.

Freshness

Near-real-time updates with hourly frequency.

Geography

Covers the Black Sea and Full Disk area from 163E-77W and 60S-60N.