TOC > MSC data > REWPS > REWPS on MSC Datamart
Regional Ensemble Wave Prediction System (REWPS) Data in GRIB2 Format
This page describes the data of the Regional Ensemble Wave Prediction System.
Data location
MSC Datamart data can be automatically retrieved with the Advanced Message Queuing Protocol (AMQP) as soon as they become available. An overview and examples to access and use the Meteorological Service of Canada's open data is also available.
The data is available using the HTTPS protocol and resides in a directory that is plainly accessible to a web browser. Visiting that directory with an interactive browser will yield a raw listing of links, each link being a downloadable GRIB2 file.
The data can be accessed at the following address :
where :
- HH : Model run start, in UTC [00, 06, 12, 18]
Grid technical specification
The REWPS data are available on the Great Lakes domain.
This table lists the values of different parameters of the REWPS grid:
| Parameter | Value |
|---|---|
| ni | 550 |
| nj | 365 |
| resolution | 0.0224° x 0.0310° |
| coordinate of first grid point | 41.0984° N 92.4790° O |
File name nomenclature
NOTE: ALL HOURS ARE IN UTC.
File names have the form:
{YYYYMMDD}T{HH}Z_MSC_REWPS-{DOMAIN}_{VAR}_{LVL}_{Grid}{resolution}_PT{hhh}H.grib2
Where:
- YYYYMMDD: Year, month and day of the beginning of the forecast
- T : Time delimiter according to ISO8601 norms
- HH: UTC run time [00, 06, 12, 18]
- Z : Time zone (UTC hour)
- MSC : Constant string indicating the Meteorological Service of Canada, source of data
- REWPS : Constant string indicating that data is from the Regional Ensemble Wave Prediction System
- DOMAIN : String indicating which domain the data is from [Great-Lakes]
- VAR : Variables included in the file
- LVL : Vertical level [Sfc for the surface]
- Grid : Horizontal grid type [LatLon]
- resolution : Indicating resolution in degree in latitude and longitude direction [0.022x0.031]
- PT{hhh}H: Forecast hours based on ISO8601 norms. P, T and H are constant character designating Period, Time and Hour. "hhh" is the forecast hour [000, 003, 006, ..., 072].
- grib2: constant string indicating the GRIB2 format is used
Example of file name:
20210202T12Z_MSC_REWPS-Great-Lakes_HTSGW_Sfc_LatLon0.022x0.031_PT066H.grib2
Variable List
Support
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