METOP-B AVHRR NDVI: Daily Vegetation Index at 0.05 Degree Resolution

The METOP-B AVHRR Atmospherically Corrected NDVI Daily L3 Global 0.05 Deg. CMG dataset is produced by the Long-Term Data Record (LTDR) project. It provides a daily Normalized Difference Vegetation Index (NDVI) derived from GIMMS Advanced Processing System BRDF-corrected surface reflectance. The LTDR project bridges data from NOAA AVHRR, MODIS, SNPP VIIRS, and JPSS VIIRS missions.

Use Cases

• Monitoring global vegetation health and phenology based on daily NDVI values.
• Studying climate change impacts on land surface based on a long-term climate data record.
• Validating and comparing vegetation indices across different satellite missions (AVHRR, MODIS, VIIRS).
• Analyzing spatial patterns of photosynthetic activity at a 0.05-degree resolution.

Strengths

• Derived from atmospherically corrected and BRDF-corrected surface reflectance data.
• Integrates data from eight AVHRR missions and bridges multiple satellite sensor families.
• Provides daily temporal resolution for tracking vegetation changes.

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 satellite mission (METOP-B).

Provenance

Source

National Aeronautics and Space Administration

Collection Method

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

Freshness

Last updated 2026-03-13 00:21:59.126478; freshness should be verified.

Geography

Global