Tonga Vegetation Health: 10-Day FAPAR Anomaly Composites

Copernicus provides 10-day time composite FAPAR anomaly data for Tonga derived from the Visible Infrared Imaging Radiometer Suite (VIIRS). This geospatial dataset measures vegetation health and greenness to monitor agricultural drought impacts through March 2026.

Use Cases

• Detecting agricultural drought by identifying negative FAPAR anomaly deviations
• Monitoring vegetation productivity cycles using the 10-day composite intervals
• Environmental health assessment of Tongan land cover via VIIRS-derived indices

Strengths

• 10-day temporal resolution
• Derived from VIIRS sensor data
• Standardized 0-1 FAPAR scale

Limitations

• Geographic scope restricted to Tonga
• Potential for cloud cover interference in optical satellite data
• Lack of ground-truth validation data within the package

Provenance

Source

Copernicus

Collection Method

Satellite remote sensing via Visible Infrared Imaging Radiometer Suite (VIIRS)

Freshness

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

Geography

Tonga