Sierra Leone FAPAR Vegetation Anomalies: 10-Day VIIRS Composites

Copernicus provides this geospatial dataset containing 10-day time composite FAPAR anomalies for Sierra Leone derived from VIIRS sensor data. The data measures vegetation greenness and health to monitor agricultural drought impacts through 2026. It utilizes the Fraction of Absorbed Photosynthetically Active Radiation metric to quantify biophysical absorption levels.

Use Cases

• Detecting agricultural drought impacts by identifying negative deviations in FAPAR anomaly values
• Monitoring seasonal vegetation productivity across Sierra Leone using the 10-day composite cycles
• Correlating vegetation greenness with local rainfall patterns using the 0-1 absorption scale

Strengths

• Derived from the Visible Infrared Imaging Radiometer Suite (VIIRS) for high-accuracy sensing
• Standardized 0 to 1 dimensionless scale allows for consistent biophysical comparison
• High temporal resolution with 10-day composite intervals

Limitations

• GEOTIFF format requires specialized GIS software or libraries for processing
• Lack of tabular metadata for specific administrative sub-regions within the raw files

Provenance

Source

Copernicus

Collection Method

Remote sensing via Visible Infrared Imaging Radiometer Suite (VIIRS)

Freshness

Updated through March 2026 with a 10-day composite frequency.

Geography

Sierra Leone