Rwanda Subnational NDVI: Dekadal Vegetation Indicators and Anomalies

Dekadal NDVI indicators for Rwanda's sub-national administrative units are derived from NASA MODIS collection 6.1 satellite imagery. Maintained by the World Food Programme, the data includes 10-day vegetation measurements (vim), historical averages (vim_lta), and anomaly percentages (viq). These records facilitate regional monitoring of agricultural health and drought conditions.

Use Cases

• Monitoring seasonal vegetation growth by tracking vim values across different dekads
• Identifying areas of potential food insecurity by analyzing negative viq percentages
• Evaluating the statistical significance of regional aggregates using the n_pixels column

Strengths

• Derived from NASA MODIS collection 6.1 (Aqua and Terra) for high-quality spectral data
• Includes vim_lta to provide a historical baseline for every administrative unit
• Standardized with WFP Pcode references for interoperability with humanitarian datasets

Limitations

• Aggregated at the sub-national administrative level, masking local-scale vegetation variations
• Data quality in specific dekads may be affected by cloud cover, impacting the n_pixels count

Provenance

Source

World Food Programme (WFP) using NASA MODIS

Collection Method

Satellite sensor data aggregation

Freshness

Updated as of March 2026.

Geography

Rwanda