Ecuador Subnational Rainfall: Dekadal CHIRPS Indicators and Forecasts

Ecuador subnational rainfall indicators aggregated from CHIRPS satellite imagery and CHIRPS-GEFS forecasts, produced by the World Food Programme. The data provides dekadal (10-day) measurements including actual rainfall, rolling averages, and anomalies across administrative units. It is updated multiple times per month to transition from forecasts to final observations.

Use Cases

• Drought monitoring using rainfall anomaly percentages (rfq, r1q, r3q) to identify deviations from historical norms
• Agricultural season assessment using 3-month rolling aggregations (r3h) to track water availability
• Forecast accuracy analysis by comparing 'type' forecast values against final 'rfh' observations

Strengths

• Uses CHIRPS v2 which integrates satellite imagery with in-situ station data
• Includes Pcode references for standardized administrative unit mapping
• Provides n_pixels to indicate the spatial data density used for each aggregate

Limitations

• Satellite-derived estimates may vary from ground-truth station data in high-altitude Andean regions
• Final validated observations have a mid-month lag for the previous month's data

Provenance

Source

WFP - World Food Programme

Collection Method

Aggregated from CHIRPS satellite imagery and CHIRPS-GEFS forecasts

Freshness

Updated six times per month on the 1st, 6th, 11th, 16th, 21st, and 26th.

Geography

Ecuador