MODIS SST4: Near Real-Time Sea Surface Temperature

Near real-time (NRT) data provides a snapshot of sea surface temperature (SST) from a single satellite orbit. The dataset contains the SST4 product, a skin temperature retrieved from mid-wave infrared bands (∼3.7–4.1 µm) at night, which is less sensitive to atmospheric water vapor than long-wave methods. This makes it a complement for monitoring ocean temperature in humid or tropical conditions.

Use Cases

• Monitoring near-real-time ocean skin temperature for operational forecasting.
• Studying tropical ocean dynamics using SST data with reduced sensitivity to water vapor.
• Validating ocean models with satellite-derived temperature measurements.
• Assessing short-term thermal changes in the ocean surface layer.

Strengths

• Provides near real-time data, enabling rapid analysis of current ocean conditions.
• SST4 product offers a valuable complement to standard SST in humid conditions, as described in the source.

Limitations

• NRT products use less-than-optimal calibration and ancillary data inputs, as stated in the source descriptions.
• Critical metadata such as row count, column details, and license are missing from all platform entries.

Provenance

Source

National Aeronautics and Space Administration (NASA) Ocean Biology DAAC

Collection Method

Satellite remote sensing via the MODIS instrument aboard the Terra and Aqua satellites.

Freshness

2026-03-13 (from datagov platform)

Geography

Global