El Salvador FAPAR Vegetation Anomalies: 10-Day VIIRS Composites

Copernicus provides this geospatial dataset containing 10-day time composites of Fraction of Absorbed Photosynthetically Active Radiation (FAPAR) anomalies for El Salvador. Derived from Visible Infrared Imaging Radiometer Suite (VIIRS) sensors, the data monitors vegetation health and agricultural drought impacts. The records are updated through March 2026 and utilize a standardized 0 to 1 dimensionless scale.

Use Cases

• Detecting agricultural drought by analyzing FAPAR anomaly deviations from historical baselines
• Monitoring vegetation productivity trends using 10-day VIIRS composite intervals
• Assessing crop health across El Salvador using the 0-1 absorption scale to identify stressed zones

Strengths

• Derived from high-cadence VIIRS sensor data
• Standardized 0-1 dimensionless scale for cross-region comparison
• 10-day temporal resolution for granular drought monitoring

Limitations

• Geographic scope is limited to El Salvador
• Requires GIS software to process GEOTIFF raster formats
• Lack of tabular metadata or specific column definitions in the source

Provenance

Source

Copernicus

Collection Method

Satellite sensor (Visible Infrared Imaging Radiometer Suite)

Freshness

Updated as recently as March 2026 with a 10-day composite frequency.

Geography

El Salvador