Description

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.

Resources

Name	Format	Description	Link
MSC Datamart AMQP	GeoJSON		amqps://dd.meteo.gc.ca/model_gem_global.stat-post-processing.#
MSC Datamart AMQP	GeoJSON		amqps://dd.meteo.gc.ca/model_gem_global.stat-post-processing.#
MSC Datamart AMQP	GeoJSON		amqps://dd.meteo.gc.ca/*.WXO-DD.model_gem_global.stat-post-processing.#
MSC Datamart AMQP	GeoJSON		amqps://dd.meteo.gc.ca/*.WXO-DD.model_gem_global.stat-post-processing.#
MSC Datamart AMQP	JSON		amqps://dd.weather.gc.ca/model_gem_global.stat-post-processing.#
MSC Datamart AMQP	GeoJSON		amqps://dd.weather.gc.ca/model_gem_global.stat-post-processing.#
MSC Datamart AMQP	JSON		amqps://dd.weather.gc.ca/*.WXO-DD.model_gem_global.stat-post-processing.#
MSC Datamart AMQP	JSON		amqps://dd.weather.gc.ca/*.WXO-DD.model_gem_global.stat-post-processing.#
MSC API Link	GeoJSON		https://api.meteo.gc.ca/collections/umos-gdps-realtime/items/
MSC API Link	GeoJSON		https://api.meteo.gc.ca/collections/umos-gdps-realtime/items/
MSC API Link	GeoJSON		https://api.weather.gc.ca/collections/umos-gdps-realtime/items/
MSC API Link	GeoJSON		https://api.weather.gc.ca/collections/umos-gdps-realtime/items/
MSC WMS link	GeoJSON		https://api.weather.gc.ca/collections/umos-gdps-realtime/items?lang=en
MSC Datamart	GeoJSON		https://dd.meteo.gc.ca/model_gem_global/stat-post-processing/
MSC Datamart	JSON		https://dd.meteo.gc.ca/model_gem_global/stat-post-processing/
MSC Datamart	JSON		https://dd.meteo.gc.ca/today/model_gem_global/stat-post-processing/
MSC Datamart	JSON		https://dd.meteo.gc.ca/today/model_gem_global/stat-post-processing/
MSC Datamart	JSON		https://dd.weather.gc.ca/model_gem_global/stat-post-processing/
MSC Datamart	GeoJSON		https://dd.weather.gc.ca/model_gem_global/stat-post-processing/
MSC Datamart	JSON		https://dd.weather.gc.ca/today/model_gem_global/stat-post-processing/
MSC Datamart	JSON		https://dd.weather.gc.ca/today/model_gem_global/stat-post-processing/
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_gdps-statpostproc-datamart_en/
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_gdps-statpostproc-datamart_en/
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_gdps-statpostproc-datamart_fr/
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_gdps-statpostproc-datamart_fr/
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_rdps-statpostproc-datamart_en
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_rdps-statpostproc-datamart_en
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_rdps-statpostproc-datamart_fr
MSC Open Data documentation	HTML		https://eccc-msc.github.io/open-data/msc-data/nwp_gdps/readme_rdps-statpostproc-datamart_fr

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