Sentinel-3B OLCI Level-3M Global Mapped Chlorophyll Data (NRT)

Near real-time global mapped chlorophyll concentration data from the Sentinel-3B satellite's Ocean and Land Colour Instrument (OLCI). The dataset is produced by NASA's Ocean Biology DAAC as a 'quicklook' product, providing a snapshot from a single orbit using the best-available ancillary meteorological and ozone data at the time. The dataset version is R2022.0 and was last updated on 2026-03 13.

Use Cases

• Monitor phytoplankton blooms based on near real-time chlorophyll concentration maps.
• Assess short-term changes in ocean productivity based on single-orbit satellite snapshots.
• Validate or supplement oceanographic models based on quicklook satellite-derived chlorophyll data.
• Study regional ocean color variability based on global mapped data from the OLCI instrument.

Strengths

• Produced by NASA's Ocean Biology DAAC, an authoritative source for ocean biology data.
• Provides near real-time (NRT) data, offering timely observations.
• Global spatial coverage, enabling worldwide analysis.
• Based on observations from the Sentinel-3B satellite, a dedicated Earth-observation platform.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• The description notes inputs and calibration are 'less than optimal' for these quicklook products.
• Row count and file size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA) Ocean Biology DAAC

Collection Method

Satellite remote sensing data from the Sentinel-3B OLCI instrument, processed into Level-3M mapped products.

Time Range

Near real-time (single orbit snapshots).

Freshness

Last updated 2026-03-13 20:33:46.962467; freshness should be verified.

Geography

Global