Bangladesh Subnational Rainfall: Dekadal Indicators and Forecasts

The World Food Programme (WFP) provides dekadal rainfall indicators for Bangladesh at the subnational level, derived from CHIRPS satellite imagery and CHIRPS-GEFS forecasts. The data includes 10-day, 1-month, and 3-month rainfall aggregations alongside long-term averages and anomalies.

Use Cases

• Monitoring agricultural drought conditions using the 3-month rainfall anomaly (r3q)
• Comparing current 10-day precipitation (rfh) against historical averages (rfh_avg) for climate trend analysis
• Assessing soil moisture potential using 1-month rolling aggregations (r1h)

Strengths

• Includes 9 distinct rainfall and anomaly indicators
• Standardized Pcode references for administrative units
• Distinguishes between forecast, preliminary, and final data types

Limitations

• Satellite-derived estimates may differ from local rain gauge measurements
• Temporal granularity is fixed at 10-day intervals
• Geographic scope is restricted to Bangladesh

Provenance

Source

WFP - World Food Programme via CHIRPS and CHIRPS-GEFS

Collection Method

Satellite imagery aggregation and short-term forecasting models

Freshness

Updated multiple times per month following a specific forecast and observation release cycle.

Geography

Bangladesh