Madagascar: Subnational Dekadal NDVI and Vegetation Anomalies

Madagascar sub-national NDVI indicators aggregated from NASA MODIS collection 6.1 satellite data by the World Food Programme. The data provides dekadal (10-day) vegetation indices, long-term averages, and anomalies for administrative units identified by WFP Pcodes.

Use Cases

• Analyzing crop health trends by comparing current vim values against historical vim_lta averages
• Detecting regional drought stress using the viq percentage anomaly indicator
• Assessing data reliability for specific regions using the n_pixels count

Strengths

• Derived from NASA MODIS collection 6.1 satellite data
• Includes historical baselines via the vim_lta column
• Standardized via WFP Pcode administrative references

Limitations

• Spatial resolution is limited to administrative unit aggregates rather than raw pixels
• Data accuracy is subject to atmospheric interference and cloud cover common in satellite imagery

Provenance

Source

World Food Programme (WFP) via NASA MODIS

Collection Method

Satellite sensor data aggregation

Freshness

Updated as of March 2026

Geography

Madagascar