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.

Simple

Date ( RI_367 )
2022-05-02
Date ( RI_366 )
2010-10-25
RI_414
  Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada - National Inquiry Response Team / Équipe nationale de réponse des demandes du public ( National Inquiry Response Team )
77 Westmorland Street, suite 260 , Fredericton , New Brunswick , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
https://www.canada.ca/en/environment-climate-change.html
Hours of service
0700h - 1500h EST
Status
onGoing; enContinue RI_596
Maintenance and update frequency
continual; continue RI_532
Keywords
  • Probabilistic predictions
  • Global
  • Ensemble
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Precipitation
  • Weather forecasts
  • Humidity
  • Air temperature
  • Wind
  • Meteorological data
  • Snow
ECCC Information Category EN ECCC Information Category FR ( RI_528 )
  • Weather and Climate
Business Functions Fonctions de l'entreprise ( RI_528 )
  • Provide Weather Information Products and Services
  • Deliver Weather Products and Services to Clients
Branch Direction Générale ( RI_528 )
  • Meteorological Service of Canada
Directorate Direction ( RI_528 )
  • Weather and Environmental Operations
Environment Canada - GC Security Classification Environment Canada - GC Security Classification ( RI_528 )
  • Unclassified
Geography Portée Géographique ( Place )
  • International
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
otherRestrictions; autresRestrictions RI_609
Use constraints
otherRestrictions; autresRestrictions RI_609
Spatial representation type
grid; grille RI_636
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Topic category
  • Climatology, meteorology, atmosphere
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Begin date
1996-01-24
Reference system identifier
EPSG:4326 / 6.18.3

Date ( RI_367 )
2008-11-12
RI_413
  European Petroleum Survey Group
http://www.epsg-registry.org

Spatial representation info

No information provided.
Distribution format
  • GRIB2 ( 2 )

  • WMS ( 1.3.0 )

RI_412
  Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada - National Inquiry Response Team / Équipe nationale de réponse des demandes du public ( National Inquiry Response Team )
77 Westmorland Street, suite 260 , Fredericton , New Brunswick , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
https://www.canada.ca/en/environment-climate-change.html
Hours of service
0700h - 1500h EST
OnLine resource
MSC Datamart ( HTTPS )

Dataset;GRIB2;eng

OnLine resource
MSC Datamart ( HTTPS )

Dataset;GRIB2;fra

OnLine resource
MSC Datamart AMQP ( AMQPS )

Dataset;GRIB2;eng

OnLine resource
MSC Datamart AMQP ( AMQPS )

Dataset;GRIB2;fra

OnLine resource
GEPS.DIAG.24_PRMM.ERGE1 - Quantity of precipitation >= 1 mm [probability %] ( OGC:WMS )

Web Service;WMS;eng

OnLine resource
GEPS.DIAG.24_PRMM.ERGE1 - Quantity of precipitation >= 1 mm [probability %] ( OGC:WMS )

Web Service;WMS;fra

OnLine resource
MSC Open Data documentation ( HTTPS )

Supporting Document;HTML;eng

OnLine resource
MSC Open Data documentation ( HTTPS )

Supporting Document;HTML;fra

File identifier
6d9dd2f8-202e-58cb-a110-e2168832aacb XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2024-04-09T14:56:16
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_414
  Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada - National Inquiry Response Team / Équipe nationale de réponse des demandes du public ( National Inquiry Response Team )
77 Westmorland Street, suite 260 , Fredericton , New Brunswick , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
https://www.canada.ca/en/environment-climate-change.html
Hours of service
0700h - 1500h EST
Dataset URI
urn:x-msc-smc:md:weather-meteo::nwp.geps
 
 

Overviews

overview
ecdc_thumbnail_geps.jpg

Spatial extent

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Keywords


Provided by

Associated resources

Not available