Global Deterministic Prediction System (GDPS) statistically post-processed by PROGNOS-MLR
| Property | Value |
|---|---|
| identifier | urn:wmo:md:ca-eccc-msc:71cb9009-1a55-4c8e-8b5c-35dfce7cabff |
| type | dataset |
| created | 2025-07-23T00:00:00Z |
| updated | |
| title | Global Deterministic Prediction System (GDPS) statistically post-processed by PROGNOS-MLR |
| description | Statistical post-processing of forecasts from numerical weather and environmental models, including the Global Deterministic Prediction System (GDPS), helps reduce systematic biases and error variance in raw forecasts. This is achieved by establishing optimized statistical relationships between observations recorded at stations and numerical model outputs at nearby grid points. The PROGNOS system is a software package developed by Environment and Climate Change Canada that enables this. Relationships are built using the 'Model Output Statistics' (MOS) method and multiple linear regression (MLR). Currently, only the air temperature at 1.5 meters above the Earth's surface is statistically post-processed. The absence of statistically post-processed forecasts can be due to the unavailability of a statistical model caused by insufficient observation quality or quantity. The geographical region covered by this data includes the territory covered by Canadian meteorological stations and some American buoys. For the GDPS, statistically post-processed forecasts are available at the same issuance frequency as the raw forecasts produced by numerical models (e.g., 00Z, 12Z) and at hourly forecast lead times, from 00 to 84 hours, and then every 3 hours, from 87 to 168 hours. |
| wmo:dataPolicy | core |
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| themes |
concepts:
id:
Weather forecasts
id: Air temperature 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 |
| 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 |
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