Glossary
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High-Resolution (2.5 km) Ensemble Precipitation Analysis
Overview
HREPA is a system that provides a 24-member set of analysis for accumulations of high resolution precipitation over Canada and northern United States every 6-hours.
HREPA produces one control member that is equivalent to a deternministic analysis, which combines observations from precipitation gauges and radar precipitation estimates (QPE's).
The other members follow the same data assimilation approach but use randomly disturbed input data at each valid hour of the analysis.
The ensemble forecast from HREPA is currently integrated as an internal module in CaLDAS as a component of NSRPS.
Current version: 1.3.0
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What is the spatial resolution and coverage of this data?
HREPA provides analyses and ensemble forecasts over Canada and the United States at a 2.5-km spatial resolution.
What is available?
What is the timestep and time period covered by this data?
HREPA produces four sets of cumulative precipitation analyses (6-hour amounts per day) valid at synoptic hours (00, 06, 12, and 18Z) each day.
What are the outputs from this product?
Outputs from HREPA include:
- 24-member set of analysis for accumulations of high resolution precipitation
- one control member that is equivalent to a deternministic analysis
Outputs currently available via NetCDF
| Variable | Variable long name | Unit | Level | Frequency (analysis/forecast) |
|---|---|---|---|---|
| q025 | 25th precipitation amount percentile | kg/m2 | Surface | 6h |
What is the file structure and format?
Currently only the 25th precipitation amount percentile estimated through the 25 members of the ensemble is available in the NetCDF file format, click here information on file formats
How do I access the data?
Currently HREPA data is only available through ECCC's internal Science Network.
What is the status of this product?
Current Status: Operational
click here for descriptions of various operational statuses
Where can I find additional information?
Technical Note
Technical Specifications
Change log
Product license
The End-User Licence for Environment and Climate Change Canada's Data Servers specifies the conditions of use of this data.