Lebanon Subnational Rainfall: Dekadal Indicators and Forecasts

Lebanon subnational rainfall indicators from the World Food Programme (WFP) provide dekadal precipitation metrics across administrative units using CHIRPS satellite imagery and CHIRPS-GEFS forecasts. The data includes 9 specific indicators such as 10-day rainfall totals and percentage anomalies, updated on a recurring 10-day cycle through March 2026.

Use Cases

• Drought monitoring by analyzing the rfq (rainfall anomaly) column for negative deviations
• Agricultural planning using r3h (3-month rolling aggregation) to assess seasonal water availability
• Early warning systems utilizing the type column to distinguish between forecast and final observations

Strengths

• 9 distinct rainfall indicators including anomalies and long-term averages
• Standardized WFP Pcode references for administrative units
• Includes n_pixels metadata to quantify the spatial data density per unit

Limitations

• Satellite-derived CHIRPS data may deviate from local ground-station measurements
• Aggregation at administrative levels obscures micro-climatic variations within districts

Provenance

Source

World Food Programme (WFP) using CHIRPS v2 and CHIRPS-GEFS

Collection Method

Satellite imagery processing and station data integration

Freshness

Updated every 10 days (dekadal) with multiple forecast and observation revisions per month.

Geography

Lebanon