Global Ensemble Prediction System
The Global Ensemble Prediction System (GEPS) carries out physics calculations to arrive at probabilistic predictions of atmospheric elements from the current day out to 16 days into the future (up to 32 days once a week on Thursdays at 00UTC). The GEPS produces different outlooks (scenarios) to estimate the forecast uncertainties due to the nonlinear (chaotic) behaviour of the atmosphere. The probabilistic predictions are based on an ensemble of 20 scenarios that differ in their initial conditions, their physics parameters which are randomly perturbed by a Stochastic Parameter Perturbation (SPP) method, and the stochastic perturbations (kinetic energy). A control member that is not perturbed is also available. Weather elements include temperature, precipitation, cloud cover, wind speed and direction, humidity and others. This product contains raw numerical results of these calculations. Geographical coverage is global. The horizontal resolution of the system is 0.35 degree (about 39 km at equator). The system has 84 vertical levels for the forecasts and for the analyses. Predictions are performed twice a day.
Basic view
Metadata Record Information
- File Identifier
- 6d9dd2f8-202e-58cb-a110-e2168832aacb XML
- Date Stamp
- 2024-04-09T14:56:16
- Metadata language
-
eng; CAN
- Character set
- UTF8
- Hierarchy Level
- Dataset
+01-506-451-6010
https://www.canada.ca/en/environment-climate-change.html
- Hours of Service
-
0700h - 1500h EST
Data identification
- Date (Publication)
- 2022-05-02
- Date (Creation)
- 2010-10-25
- Status
- On going
- Metadata language
-
eng; CAN
- Character set
- UTF8
- Topic category
-
- Climatology, meteorology, atmosphere
- Maintenance and Update Frequency
- Continual
- Spatial representation type
- Grid
+01-506-451-6010
https://www.canada.ca/en/environment-climate-change.html
- Hours of Service
-
0700h - 1500h EST
Keywords
- Keywords
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Probabilistic predictions
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Global
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Ensemble
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Government of Canada Core Subject Thesaurus
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Precipitation
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Weather forecasts
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Humidity
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Air temperature
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Wind
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Meteorological data
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Snow
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ECCC Information Category EN
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Weather and Climate
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Business Functions
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Provide Weather Information Products and Services
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Deliver Weather Products and Services to Clients
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Branch
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Meteorological Service of Canada
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Directorate
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Weather and Environmental Operations
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Environment Canada - GC Security Classification
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Unclassified
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Geography
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International
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- Use Limitation
-
Open Government Licence - Canada ( http://open.canada.ca/en/open-government-licence-canada )
- Access Constraints
- Other restrictions
- Use Constraints
- Other restrictions
- Begin Date
- 1996-01-24
Extent
))
Ref. system Reference Systems
- Reference system identifier
-
EPSG:4326
/
6.18.3
European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication; publication European Petroleum Survey Group http://www.epsg-registry.org WWW:LINK originator; auteur
Spatial representation info
Distribution
Distribution Formats
- Distribution format
-
-
GRIB2
(
2
)
-
WMS
(
1.3.0
)
-
GRIB2
(
2
)
+01-506-451-6010
https://www.canada.ca/en/environment-climate-change.html
- Hours of Service
-
0700h - 1500h EST
Overviews
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