NOAA-20 VIIRS: Global Mapped Normalized Difference Vegetation Index

Global satellite-derived vegetation index data from the Visible and Infrared Imager/Radiometer Suite (VIIRS) instrument aboard the NOAA-20 spacecraft. The data is produced by NASA and NOAA as part of the Joint Polar Satellite System, with VIIRS being the successor to MODIS for Earth science products. The dataset includes measurements from 22 spectral bands, ranging from 412 nm to 12 nm, with moderate and image-resolution capabilities.

Use Cases

• Monitoring global vegetation health and phenology based on spectral reflectance data.
• Modeling land cover change and agricultural productivity based on the Normalized Difference Vegetation Index.
• Assessing drought impacts and environmental stress based on multi-spectral imagery.
• Calibrating and validating ecological models based on satellite-derived vegetation indices.

Strengths

• Data originates from the VIIRS instrument, which has 22 spectral bands for detailed analysis.
• Provides global coverage as a Level-3 mapped product.
• VIIRS is described as the successor to MODIS, suggesting continuity with a long-term data record.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Data is provided in BIN and ISO formats, which may require specialized tools for processing.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Satellite remote sensing from the VIIRS instrument on the NOAA-20 spacecraft.

Time Range

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Freshness

Last updated 2026-03-12 23:16:56.038559; freshness should be verified.

Geography

Global