Samoa FAPAR Vegetation Index Anomalies: 10-Day VIIRS Composites

Copernicus provides 10-day time composite GEOTIFF files of Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) anomalies for Samoa. Derived from the Visible Infrared Imaging Radiometer Suite (VIIRS), this data monitors vegetation health and agricultural drought impacts. The records represent biophysical measurements ranging from 0 to 1 to indicate absorption levels.

Use Cases

• Detecting agricultural drought by analyzing FAPAR anomaly values across 10-day intervals
• Mapping localized vegetation stress using GEOTIFF spatial layers
• Assessing long-term productivity trends in Samoan ecosystems using VIIRS-derived composites

Strengths

• 10-day temporal resolution for monitoring rapid vegetation changes
• Standardized biophysical scale (0 to 1) for FAPAR measurements
• Utilizes VIIRS sensor data for consistent satellite-derived observations

Limitations

• Geographic restriction to Samoa only
• Potential for data gaps due to cloud cover interference with optical sensors in tropical climates
• Lack of detailed attribute metadata in the source description

Provenance

Source

Copernicus

Collection Method

Satellite sensor observation (VIIRS)

Freshness

Updated as of March 2026; follows a 10-day composite cycle.

Geography

Samoa