Observed Basin-Average Accumulated Precipitation (HRDPA - Past 1 day, 3 days & 7 days) (English, CSV)

Load this English CSV resource into a live table: Observed Basin-Average Accumulated Precipitation (HRDPA - Past 1 day, 3 days & 7 days).

Format

CSV

Access

ingestable

Publisher-reported update

2026-07-29

This polygon layer depicts sub-basin average observed precipitation from the High Resolution Deterministic Precipitation Analysis (HRDPA). Offers insight into how much rain/snow actually fell across each watershed in the past observation period. Observation periods we are interested are for past 1 day, 3 days and 7 days. HRDPA is ECCC’s high-resolution precipitation analysis, merging gauge, radar, and HRDPS model data. This layer aggregates the final (or preliminary) HRDPA accumulations to sub-basin polygons. Each record indicates the average precipitation that truly occurred over each watershed, vital for verifying model forecasts, calibrating hydrological models, and conducting post-event analyses of flood or drought severity.

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