Global Ensemble Prediction System

Property Value
id urn:wmo:md:ca-eccc-msc:6d9dd2f8-202e-58cb-a110-e2168832aacb
title Global Ensemble Prediction System
description 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 39 days twice a week on Mondays and Thursdays at 00UTC for calculating forecast anomalies). 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. Data is available on some fifteen vertical levels on a global latitude-longitude uniform grid with 0.5 degree horizontal resolution (about 39km). Predictions are performed twice a day.
themes concepts: id: Weather forecasts
id: Precipitation
id: Air temperature
id: Humidity
id: Snow
id: Wind
id: Meteorological data

scheme: https://canada.multites.net/cst/EAEAD1E6-7DD2-4997-BE7F-40BFB1CBE8A2/CST20230912.rdf
concepts: id: weather

scheme: https://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline
type dataset
language code: en
created 2010-10-25T00:00:00Z
rights Open Government Licence - Canada (https://open.canada.ca/en/open-government-licence-canada)
formats name: WMS
contacts addresses: deliveryPoint: 77 Westmorland Street, suite 260
city: Fredericton
administrativeArea: New Brunswick
postalCode: E3B 6Z4
country: Canada

roles: host
organization: Government of Canada; Environment and Climate Change Canada; Meteorological Service of Canada
name: National Inquiry Response Team / Équipe nationale de réponse des demandes du public
position: National Inquiry Response Team
hoursOfService: 0700h - 1500h EST
contactInstructions: email
phones: value: +18199972800

emails: value: ECWeather-Meteo@ec.gc.ca

links: rel: canonical
type: text/html
href: https://www.canada.ca/en/environment-climate-change.html

keywords Probabilistic predictions Global Ensemble Weather and Climate International Atmosphere
wmo:dataPolicy core
centre-id ca-eccc-msc
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