Numerical weather prediction: Difference between revisions

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** [[Global Environmental Multiscale Model]] from the [[Canadian Meteorological Centre]]
* [[Integrated Forecast System]] from the [[European Centre for Medium-Range Weather Forecasts]] and [[Météo-France]]
* [[Navy Global Environmental Model]] from the US Navy [[Fleet Numerical Meteorology and Oceanography Center]]
* [[Unified Model]], produced by a partnership of:
** UK [[Met Office]]
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** New Zealand [[National Institute of Water and Atmospheric Research]]
* [[Icosahedral Nonhydrostatic]] (ICON) from [[Deutscher Wetterdienst]], the German Meteorological Service
* [[Navy Global Environmental Model]] from the US Navy [[Fleet Numerical Meteorology and Oceanography Center]]
* Global Spectral Model and Global Ensemble Prediction System from the [[Japan Meteorological Agency]]<ref name="JMA">[https://www.jma.go.jp/jma/en/Activities/nwp.html Numerical Weather Prediction Activities]</ref>
* [[China Meteorological Administration]] Global Assimilation Forecasting System<ref name="CMA">[https://www.cma.gov.cn/en/forecast/highlight/202311/t20231117_5892086.html Numerical Weather Prediction]</ref>
* Brazilian Global Atmospheric Model (BAM) from [[Centro de Previsão do Tempo e Estudos Climáticos]] (CPTEC)
 
The global models can be used to supply [[boundary conditions]] to higher-resolution models that provide more accurate forecasts for an area of interest, such as the country served by a government agency, or an area where military action or rescue efforts are planned.
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** Local Forecast Model every hour, looking 10-18 hours ahead
* The China Meteorological Administration runs the Regional Numerical Forecasting Model (CMA-MESO)<ref name="CMA" />
* CPTEC runs the Brazilian Regional Atmospheric Modelling System (BRAMS) and ETA Regional Model (ETA) for South America
 
The output of higher-resolution models may be further modified by [[model output statistics]] to take into quirky local phenomena that general models do not handle well, such as [[mountain waves]].