GEM

GEM

N Atlantic

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Global Environmental Multiscale Model (GEM)

CMC GEM is an integrated forecasting and data assimilation system developed in the Recherche en Prévision Numérique (RPN), Meteorological Research Branch (MRB), and the Canadian Meteorological Centre (CMC).

Updates:

2 times per day 04:55 GMT and 16:55 GMT

More information

The model is global so that the long waves are handled properly for both data assimilation and extended-range forecasting. The model has a variable-resolution capability such that it is possible to use either a uniform-resolution latitude/longitude mesh, or a variable-resolution one that uses a rotated-coordinate system with a high-resolution sub-domain that can be located over any portion of the globe. Outside this area, the grid spacing smoothly increases to reach its maximum value at the antipodes. Data set resolution is .24 x .24 degrees, which corresponds to about 25 km resolution.

GEM is one of the five predominant synoptic scale medium-range models in general use.

Model information from Wikipedia, CMC and Government of Canada