Botswana Subnational NDVI: 10-Day Vegetation Indicators and Anomalies

Botswana sub-national NDVI indicators from NASA MODIS collection 6.1 provide 10-day (dekadal) vegetation health metrics aggregated by the World Food Programme. The records include current NDVI, long-term averages, and percentage anomalies mapped to administrative units via Pcode references.

Use Cases

• Assessing drought severity by analyzing the `viq` (anomaly percentage) across administrative regions
• Tracking seasonal vegetation growth cycles using the `vim` (10-day NDVI) time series
• Identifying regions with significant vegetation deviation by comparing `vim` against `vim_lta`

Strengths

• Derived from NASA MODIS collection 6.1 Aqua and Terra satellite data
• Includes `vim_lta` for comparing current vegetation against historical norms
• Provides `n_pixels` to indicate the spatial sample size of each administrative aggregate

Limitations

• Spatial resolution is restricted to administrative unit aggregates rather than pixel-level data
• NDVI measurements are susceptible to atmospheric interference and cloud cover

Provenance

Source

World Food Programme (WFP) using NASA MODIS collection 6.1

Collection Method

Satellite sensor data aggregation

Freshness

Updated as of March 2026.

Geography

Botswana