NOAA-16 AVHRR: Daily Global Vegetation Index at 0.05-Degree Resolution

A daily global land surface climate data record (CDR) produced by NASA's Long-Term Data Record (LTDR) project. It provides atmospherically corrected Normalized Difference Vegetation Index (NDVI) values derived from NOAA-16 AVHRR satellite data, processed through the GIMMS Advanced Processing System. The data is available in HDF4 format and was last updated on 2026-03 12.

Use Cases

• Monitoring global vegetation health and phenology based on daily NDVI values.
• Studying long-term climate change impacts on land surfaces based on the climate data record (CDR) framework.
• Validating and bridging data between different satellite missions (AVHRR, MODIS, VIIRS) as part of the LTDR project.
• Modeling leaf-area index and absorbed photosynthetically active radiation based on the derived thematic CDRs.

Strengths

• Part of a validated long-term climate data record (CDR) critical for climate change studies.
• Integrates data from eight AVHRR missions, providing a bridge between multiple satellite sensor generations.
• Provides daily temporal resolution for tracking vegetation dynamics.
• Atmospherically corrected to improve data quality for land surface analysis.

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.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Generated from GIMMS Advanced Processing System (GAPS) BRDF-corrected Surface Reflectance product derived from NOAA-16 AVHRR satellite data.

Time Range

Daily coverage, specific date range not provided in input.

Freshness

Last updated 2026-03-12 23:17:43.627859; freshness should be verified.

Geography

Global coverage at 0.05-degree resolution.