UMOS statistically post-processed Forecast of the Global Deterministic Prediction System (GDPS-UMOS-MLR)

Statistical post-processing of weather and environmental forecasts issued by numerical models, including the Global Deterministic Prediction System (GDPS), reduces systematic bias and error variance of raw numerical forecasts. This is achieved by establishing an optimal relationship between observations recorded at stations and co-located numerical model outputs. The Updatable Model Output Statistics (UMOS) system at Environment Canada carries out this task. The statistical relationships are built using the Model Output Statistics (MOS) method and a multiple linear regression (MLR) technic. The weather and environmental variable being statistically post-processed by UMOS consists of air temperature at approximately 1.5 meters above ground. The absence of a statistically post-processed forecast can be caused by a missing statistical model due to insufficient observation data quality or quantity. Geographical coverage includes weather stations across Canada. Statistically post-processed forecasts are available at the same frequency of emission as the numerical model producing the raw forecasts and at 3-hourly lead times up to 144 hours (6 days) for the GDPS.

Simple

Date ( RI_367 )
2024-07-24
Date ( RI_366 )
2023-07-28
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 )
  • Statistical post-processing
  • Machine learning
  • Multiple linear regression
  • UMOS
  • Environmental forecast
  • Point forecast
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Weather forecasts
  • Air temperature
  • Wind
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
GC Security Level GC Restrictions de manipulation ( RI_528 )
  • Unclassified
Geography Portée Géographique ( Place )
  • National (CA)
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
vector; vecteur RI_635
Metadata language
eng; CAN
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
Begin date
2023-07-28
End date
2024-07-25
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Reference system identifier
https://epsg.io / EPSG:4326 /
Distribution format
  • GEOJSON ( RFC7946 )

RI_412
  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
OnLine resource
MSC Datamart ( HTTPS )

Dataset;JSON;eng

OnLine resource
MSC Datamart ( HTTPS )

Dataset;JSON;fra

OnLine resource
MSC Datamart AMQP ( AMQPS )

Dataset;JSON;eng

OnLine resource
MSC Datamart AMQP ( AMQPS )

Dataset;GEOJSON;fra

OnLine resource
MSC Open Data documentation ( HTTPS )

Supporting Document;HTML;eng

OnLine resource
MSC Open Data documentation ( HTTPS )

Supporting Document;HTML;fra

OnLine resource
MSC WMS link ( HTTPS )

Web Service;GEOJSON;eng,fra

File identifier
7c1070fd-af7d-40fe-9e78-49d2962f0bbc XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2024-10-04T11:42:25.53Z
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 , New Brunswick , E3B 6Z4 , Canada
+01-819-997-2800
+01-506-451-6010
 
 

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