Brazil Subnational NDVI: Dekadal Vegetation Indices and Anomalies

Supplying dekadal NDVI indicators for Brazil aggregated by sub-national administrative units, derived from NASA's MODIS collection 6.1 satellite data. Produced by the World Food Programme (WFP), the records include 10-day vegetation indices and long-term averages updated through March 2026.

Use Cases

• Monitoring agricultural health by comparing current 10-day NDVI (vim) against the long-term average (vim_lta)
• Identifying drought-affected regions in Brazil using the NDVI anomaly percentage (viq)
• Evaluating the spatial representativeness of administrative aggregates using the n_pixels count

Strengths

• Uses NASA MODIS collection 6.1 data from both Aqua and Terra satellites
• Includes standardized Pcode references for interoperability with WFP administrative data
• Provides pre-calculated 10-day NDVI anomalies (viq) for immediate trend analysis

Limitations

• Spatial resolution is restricted to administrative unit aggregates rather than raw pixel data
• Optical sensor data is susceptible to noise from cloud cover and atmospheric conditions

Provenance

Source

World Food Programme (WFP) using NASA MODIS data

Collection Method

Sensor data aggregation from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS)

Time Range

Up to March 2026

Freshness

Updated through March 2026.

Geography

Brazil