TOC > MSC data > GEWPS > GEWPS on MSC Datamart
Global Ensemble Wave Prediction System (GEWPS) data in GRIB2 format
This page describes the Global Ensemble Wave Prediction System data available in GRIB2 format.
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 via the HTTP protocol. It is possible to access it with a standard browser. In this case, we obtain a list of links giving access to a GRIB2 file.
The data can be accessed at the following URL :
where :
- HH : Model run start, in UTC [00 or 12]
A history of 24 hours is maintained in this directory.
Available Domain
Global latitude-longitude grid.
| Parameter | Value |
|---|---|
| ni | 1440 |
| nj | 721 |
| resolution | 0.25° |
| coordinate of first grid point | 90° S 0° E |
File name nomenclature
NOTE: ALL HOURS ARE IN UTC.
File names have the form:
{YYYYMMDD}T{HH}Z_MSC_GEWPS_{VAR}_{LVL}_{Grille}{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, 12]
- Z : Time zone (UTC hour)
- MSC : Constant string indicating the Meteorological Service of Canada, source of data
- GEWPS : Constant string indicating that data is from the Global Ensemble Wave Prediction System
- VAR : Variables included in the file
- LVL : Vertical level [Sfc for the surface]
- Grille : Horizontal grid type [LatLon]
- resolution : Indicating resolution in degreee in latitude and longitude directions [0.25]
- 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, ..., 384]
- grib2: constant string indicating the GRIB2 format is used
Example of file name:
20210225T12Z_MSC_GEWPS_HTSGW_Sfc_LatLon0.25_PT015H.grib2
Variable List
Support
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