VIIRS/JPSS2: Global Vegetation Indices at 1km Resolution

Global satellite-derived vegetation indices from the NOAA-21 VIIRS instrument, processed over 16-day periods at a 1-kilometer resolution. The dataset includes three primary indices—Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), and Enhanced Vegetation Index-2 (EVI2)—alongside reflectance bands and quality layers. It is produced by LPCLOUD to promote continuity with the MODIS Earth Observation System mission.

Use Cases

• Monitor global vegetation health and phenology based on the NDVI, EVI, and EVI2 indices.
• Analyze land cover change and agricultural productivity using reflectance data from red, NIR, and SWIR bands.
• Assess data quality and pixel reliability for time-series analysis using the included quality and reliability layers.
• Compare vegetation indices across sensor platforms using the EVI2 formulation designed for cross-comparison.

Strengths

• Provides three established vegetation indices (NDVI, EVI, EVI2) for continuity and comparison.
• Includes multiple ancillary data layers such as reflectance values, sun/view angles, and pixel reliability.
• Designed at 1km spatial resolution with a 16-day temporal composite to promote best-available-pixel selection.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• Column-level documentation is absent; field semantics must be inferred after download.
• Known issues are documented externally, requiring users to consult a separate website for complete information.

Provenance

Source

LPCLOUD via NASA Earthdata (NOAA-21 VIIRS instrument)

Collection Method

Satellite remote sensing, with pixel compositing over a 16-day period.

Time Range

Temporal coverage is not specified in the provided input.

Freshness

Update frequency is unknown; last update date is unknown.

Geography

Global coverage.