NOAA-21 VIIRS: Near Real-time Regional Ocean Optical Properties

Near real-time satellite-derived inherent optical properties of ocean regions, produced by NASA's Ocean Biology DAAC. The data provides a quicklook snapshot from a single orbit using the best-available ancillary meteorological and ozone data at the time of processing. Inputs and calibration are described as less than optimal.

Use Cases

• Monitor short-term changes in ocean water clarity based on inherent optical properties.
• Assess phytoplankton distribution patterns from satellite-derived optical signals.
• Validate and calibrate ocean color models using near real-time observational snapshots.
• Study regional biogeochemical processes linked to optical property variations mentioned in the description.

Strengths

• Produced by NASA's Ocean Biology DAAC, an authoritative source for ocean color data.
• Provides near real-time data, enabling analysis of recent conditions.
• Based on satellite observations from the NOAA-21 VIIRS instrument.

Limitations

• Inputs and calibration are described as 'less than optimal' for these quicklook products.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial resolution are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite observations from the NOAA-21 VIIRS instrument, processed into quicklook products using best-available ancillary data.

Time Range

Near real-time, covering a short time period within a single orbit.

Freshness

Last updated 2026-03 13 20:19:17.146926; freshness should be verified.

Geography

Regional ocean coverage, specific regions not defined.