South Sudan Subnational NDVI: Dekadal Vegetation Indices and Anomalies

Dekadal NDVI indicators for South Sudan aggregated by sub-national administrative units from NASA MODIS collection 6.1 satellite data. Produced by the World Food Programme and updated through March 2026, the data includes 10-day vegetation indices, long-term averages, and percentage anomalies. The records are mapped to WFP Pcode references for spatial consistency.

Use Cases

• Assessing drought severity by comparing current `vim` values against the `vim_lta` baseline
• Identifying regional vegetation stress using the `viq` anomaly percentage column
• Evaluating data reliability for specific regions using the `n_pixels` count

Strengths

• Uses NASA MODIS collection 6.1 satellite data from both Aqua and Terra platforms
• Includes a long-term average (`vim_lta`) for historical context
• Standardized with WFP Pcode references for administrative unit identification

Limitations

• Aggregated at the sub-national level, which masks local-scale vegetation variations
• Data quality in the `n_pixels` column may fluctuate due to cloud cover interference

Provenance

Source

World Food Programme (WFP) using NASA MODIS collection 6.1

Collection Method

Satellite imagery aggregation

Freshness

Updated as of March 2026.

Geography

South Sudan