UM

UM Models

The Met Office Unified Model, abbreviated in the literature to MetUM, is the numerical modelling system developed and used at the Met Office. It is ‘seamless’ in that different configurations of the same model are used across all time and space scales. The different configurations are each designed to best represent the processes which have most influence on the time-scale of interest. For example, for accurate climate predictions the use of a coupled ocean model is essential, while for short-range weather forecasting a higher resolution atmospheric model may be more beneficial than running a costly ocean component. (Source: Met Office)