Togo Subnational Rainfall: Dekadal CHIRPS Indicators and Forecasts

Togo subnational rainfall data provided by the World Food Programme features dekadal indicators derived from CHIRPS satellite imagery and GEFS forecasts. The dataset tracks precipitation across 10-day, 1-month, and 3-month intervals, including long-term averages and anomalies. It covers administrative units identified by WFP Pcodes and is updated multiple times per month with forecast and observed values.

Use Cases

• Drought monitoring using the rfq (rainfall anomaly) column to identify regions with precipitation deficits
• Agricultural planning by analyzing r3h (3-month rolling aggregation) to assess soil moisture trends
• Short-term weather risk assessment by comparing rfh (10-day rainfall) against rfh_avg (long-term average)

Strengths

• Includes 9 distinct rainfall indicators including anomalies and rolling averages
• Uses standardized WFP Pcodes for interoperability with humanitarian data
• Provides n_pixels column to indicate the spatial data density for each aggregate

Limitations

• Satellite-derived CHIRPS estimates may vary from local ground-truth rain gauge measurements
• Subnational aggregation masks localized precipitation extremes within administrative units

Provenance

Source

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

Collection Method

Satellite imagery processing and short-term rainfall forecasting aggregated by administrative units

Freshness

Updated multiple times per month (1st, 6th, 11th, 16th, 21st, 26th) with rolling forecasts and observations.

Geography

Togo