NOAA-14 AVHRR: Daily Global Vegetation Index at 0.05-Degree Resolution

The Long-Term Data Record (LTDR) project generates a global land surface climate data record using data from eight AVHRR missions, including NOAA-14. This specific product provides a daily, atmospherically corrected Normalized Difference Vegetation Index (NDVI) at a 0.05-degree resolution globally. It is produced by NASA's LTDR project and was last updated in March 2026.

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.
• Calibrating and validating models using atmospherically corrected surface reflectance data.
• Analyzing land use and land cover changes over time using a consistent satellite data record.

Strengths

• Provides a long-term, consistent climate data record bridging multiple satellite missions.
• Offers daily global coverage at a 0.05-degree spatial resolution.
• Data is atmospherically corrected, which likely improves accuracy for surface analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect temporal bias inherent to the specific NOAA-14 satellite mission period.

Provenance

Source

National Aeronautics and Space Administration (NASA) Long-Term Data Record (LTDR) project.

Collection Method

Generated from GIMMS Advanced Processing System (GAPS) BRDF-corrected Surface Reflectance product.

Time Range

Covers the operational period of the NOAA-14 satellite; specific dates are not provided.

Freshness

Last updated 2026-03-12 23:15:42.289883; freshness should be verified.

Geography

Global coverage.