NOAA-20 VIIRS: Global Near Real-Time Vegetation Index Data

NOAA-20 VIIRS Level-3 global binned Normalized Difference Vegetation Index (NDVI) data produced in near real-time by the Ocean Biology DAAC. The data provides a snapshot from a short time period within a single orbit, using the best-available ancillary meteorological and ozone data at the time of processing. The dataset is version 2022.0 and was last updated on March 12, 2026.

Use Cases

• Monitor near real-time vegetation health based on the Normalized Difference Vegetation Index (NDVI).
• Analyze short-term changes in global biosphere activity based on single-orbit snapshots.
• Model the impact of meteorological conditions on vegetation using the ancillary data incorporated in processing.

Strengths

• Produced by NASA's Ocean Biology DAAC, an authoritative source for satellite-derived ocean and land data.
• Provides near real-time (NRT) data, offering timely snapshots of global vegetation conditions.
• Version 2022.0 indicates a specific, documented processing standard.

Limitations

• The description notes the inputs and calibration used are 'less than optimal' compared to standard science products.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and spatial/temporal resolution are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA), Ocean Biology DAAC.

Collection Method

Satellite data from the NOAA-20 spacecraft's VIIRS sensor, processed into Level-3 binned NDVI products.

Time Range

Near real-time, covering short time periods within single orbits.

Freshness

Last updated 2026-03-12 23:15:04.341837; freshness should be verified.

Geography

Global.