Liberia: Subnational Rainfall Indicators and 10-Day Dekadal Forecasts

Liberia subnational rainfall indicators aggregated by 10-day dekads from CHIRPS satellite imagery and CHIRPS-GEFS forecasts. Produced by the World Food Programme (WFP), the data provides historical averages and real-time anomalies for administrative units.

Use Cases

• Assessing agricultural water stress by analyzing the 3-month rainfall anomaly percentage (`r3q`)
• Comparing current 10-day rainfall (`rfh`) against long-term averages (`rfh_avg`) to identify seasonal shifts
• Evaluating the accuracy of short-term precipitation forecasts by comparing `type` 'forecast' records with 'final' observations

Strengths

• Provides 9 distinct rainfall and anomaly indicators
• Updated 6 times per month for near real-time monitoring
• Uses WFP Pcode references for standardized geospatial joining

Limitations

• Relies on satellite-derived estimates which may differ from local rain gauge data
• Spatial granularity is constrained by the number of pixels (`n_pixels`) per administrative unit

Provenance

Source

World Food Programme (WFP)

Collection Method

Satellite imagery (CHIRPS v2) and weather forecasts (CHIRPS-GEFS) aggregated by administrative boundaries

Freshness

Updated 6 times per month according to a fixed publication schedule.

Geography

Liberia