Guyana Subnational Rainfall: Dekadal Totals and Anomalies

Guyana subnational rainfall indicators provided by the World Food Programme based on CHIRPS satellite imagery and station data. The dataset tracks 10-day (dekadal), 1-month, and 3-month rainfall totals and anomalies across administrative units. It includes both historical observations and short-term forecasts updated six times per month.

Use Cases

• Assessing drought severity using the 3-month rainfall anomaly percentage (r3q)
• Short-term agricultural planning using 10-day rainfall forecasts (rfh) where type is forecast
• Historical climate trend analysis by comparing rfh against rfh_avg

Strengths

• Integrates CHIRPS v2 satellite and station data
• Subnational granularity with WFP Pcode references
• Includes pixel-level metadata via n_pixels column

Limitations

• Satellite-derived estimates may have errors in regions with low station density
• Temporal complexity due to overlapping forecast and observation cycles

Provenance

Source

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

Collection Method

Satellite imagery combined with in-situ station data and short-term forecasts

Freshness

Updated six times per month on a rolling forecast and observation cycle.

Geography

Guyana