Oman Subnational Rainfall: Dekadal Totals, Anomalies, and Forecasts

Delivering dekadal rainfall indicators for Oman's subnational administrative units, produced by the World Food Programme using CHIRPS v2 satellite imagery and CHIRPS-GEFS forecasts. It tracks 10-day, 1-month, and 3-month rainfall totals, anomalies, and long-term averages across standardized geographic boundaries.

Use Cases

• Monitoring drought conditions by analyzing rainfall anomalies (rfq, r1q, r3q) relative to historical norms
• Short-term agricultural water management using 10-day rainfall forecasts (rfh) filtered by the 'type' column
• Regional climate variation studies comparing 3-month rolling aggregations (r3h) across different Pcode units

Strengths

• Provides 9 specific rainfall indicators including anomalies and rolling averages
• Includes data quality metadata via the n_pixels column
• Uses standardized WFP Pcode references for administrative units

Limitations

• Satellite-derived CHIRPS data may vary from local rain gauge measurements
• Temporal consistency depends on the transition from forecast to final product types in the 'type' column

Provenance

Source

World Food Programme (WFP) via CHIRPS and CHIRPS-GEFS

Collection Method

Satellite imagery (CHIRPS v2) and short-term rainfall forecasts (CHIRPS-GEFS) aggregated by administrative units.

Freshness

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

Geography

Oman (subnational level)