The Global Environmental Multiscale Model (GEM)
The Global Environmental Multiscale Model (GEM) is an integrated forecasting and data assimilation system developed by Environment Canada to meet the operational weather forecasting needs of Canada for the foreseeable future.
These needs include short-range regional forecasting, medium-range global forecasting, and data assimilation; the model is currently operational for the global data assimilation cycle and medium-range forecasting, the regional data assimilation spin-up cycle and short-range forecasting. Overnight mesoscale forecasts are also produced, and are available to operational forecasters. A growing number of meteorological applications now either use or are based on the GEM model.
More information about GEM may be found on its