Guadeloupe Subnational Rainfall Indicators and CHIRPS-GEFS Forecasts

Offering dekadal rainfall indicators for Guadeloupe's subnational administrative units, derived from CHIRPS satellite imagery and CHIRPS-GEFS forecasts by the World Food Programme. It includes 10-day, 1-month, and 3-month rolling aggregations alongside long-term averages and anomalies. The data is updated six times per month to transition from initial forecasts to final validated observations.

Use Cases

• Drought monitoring by analyzing rainfall anomalies (rfq) relative to long-term averages
• Short-term agricultural water management using 10-day forecasts identified in the type column
• Long-term climate trend analysis using 3-month rolling aggregations (r3h)

Strengths

• Provides 9 distinct rainfall indicators including rolling averages and anomalies
• Uses standardized WFP Pcode references for administrative units
• Frequent update cycle transitioning from forecasts to final observations

Limitations

• Satellite-derived CHIRPS data may deviate from local station measurements
• Small administrative units may have low pixel counts (n_pixels), affecting aggregate precision

Provenance

Source

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

Collection Method

Satellite imagery (Climate Hazards Group InfraRed Precipitation) integrated with in-situ station data and short-term forecasts.

Freshness

Updated six times per month on a fixed schedule (1st, 6th, 11th, 16th, 21st, 26th).

Geography

Guadeloupe