Senegal Subnational NDVI: Dekadal Vegetation Indicators and Anomalies

Senegal vegetation health data provided by the World Food Programme (WFP) features dekadal NDVI indicators derived from NASA MODIS collection 6.1 satellite imagery. The records aggregate 10-day vegetation measurements and historical anomalies across sub-national administrative units to monitor environmental conditions.

Use Cases

• Monitoring drought or flood impacts by tracking the viq anomaly percentage over time
• Comparing current vegetation health (vim) against historical averages (vim_lta) for agricultural yield forecasting
• Validating regional environmental trends by filtering for high n_pixels counts to ensure statistical significance

Strengths

• Derived from NASA MODIS collection 6.1 high-resolution satellite data
• Includes vim_lta for direct comparison against historical vegetation baselines
• Provides n_pixels column to quantify the observation density for each administrative aggregate

Limitations

• Aggregated at the administrative level, which obscures localized vegetation variations within a district
• Satellite-derived NDVI is subject to interference from heavy cloud cover

Provenance

Source

World Food Programme (WFP) via NASA Moderate Resolution Imaging Spectroradiometer (MODIS)

Collection Method

Satellite remote sensing (Aqua and Terra platforms) aggregated to WFP administrative units

Freshness

Last updated March 2026.

Geography

Senegal