Global Environmental eMuLator

The Global Environmental eMuLator (GEML) is a component of the experimental Global Deterministic Prediction System (GDPS) and is an artificial intelligence (AI)-based weather emulator trained on past atmospheric states. More specifically, this GEML model is based on data compatible with the ¼°, 13-level version of the GraphCast model (Lam et al. 2023) from DeepMind. It was trained and refined by ECCC, using ECMWF's ERA5 data (1979-2016) and operational analyses (2016-2021). The weights have been recalculated and are also available to the public. Forecasts are carried out twice daily, each with a 10-day lead time. It generates the reference large-scale temperature and horizontal wind fields, toward which GDPS's GEM forecasts are spectrally nudged. The geographical coverage is global with a horizontal resolution of 28 km. Data is available on 13 pressure levels, and employs a uniform latitude-longitude grid with 0.25-degree grid resolution. Six atmospheric variables defined on the 13 pressure levels, along with 4 surface variables are available every 6 hours.

Simple

Date ( RI_367 )
2025-06-12
Date ( RI_366 )
2025-06-12
RI_414
  Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada
77 Westmorland Street, suite 260 , Fredericton , New Brunswick , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
Status
onGoing; enContinue RI_596
Maintenance and update frequency
continual; continue RI_532
Keywords ( RI_528 )
  • Prediction
  • Global
  • Deterministic
  • Emulator
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Artificial intelligence
  • Weather forecasts
  • Precipitation
  • Humidity
  • Air temperature
  • Wind
  • Meteorological data
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
Topic category
  • Climatology, meteorology, atmosphere
Begin date
2025-06-12
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Reference system identifier
http://www.epsg-registry.org / EPSG:4326 / 6.18.3
Distribution format
  • WMS ( 1.3.0 )

  • GRIB2 ( 2 )

RI_412
  Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada
77 Westmorland Street, suite 260 , New Brunswick , New Brunswick , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
OnLine resource
GDPS-GEML - Air temperature at 2m above ground [°C] [experimental] ( OGC:WMS )

Web Service;WMS;eng

OnLine resource
SGPD-GEML - Température de l'air à 2m au dessus de la surface [°C] [expérimental] ( OGC:WMS )

Web Service;WMS;fra

OnLine resource
Datamart du SMC ( HTTPS )

Dataset;GRIB2;fra

OnLine resource
MSC Datamart ( HTTPS )

Dataset;GRIB2;eng

OnLine resource
Documentation des données ouvertes du SMC ( HTTPS )

Supporting Document;HTML;fra

OnLine resource
MSC Open Data documentation ( HTTPS )

Supporting Document;HTML;eng

OnLine resource
MSC Datamart AMQP ( AMQPS )

Dataset;GRIB2;eng

OnLine resource
Datamart du SMC AMQP ( AMQPS )

Dataset;GRIB2;fra

File identifier
f8333a8d-3bf4-4d25-9105-c33363b2481e XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2026-02-10T18:25:01.079Z
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
77 Westmorland Street, suite 260 , Fredericton , Alberta , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
 
 

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