Page History

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• Weather scenario clustering (up to day10 of medium range forecast output). It is performed on medium range ensemble forecast output.  The area covers Europe and the northwest Atlantic.  It highlights the differences between medium range scenarios in terms of the large - scale flow.  
• Weather regime clustering (beyond day10 of medium range forecast output).  These summaries are based on one of four climatological regimes which have been derived from reanalysed data.  The area covers Europe, eastern Canada, and the north Atlantic.  It provides information about the possible transitions between regimes.
• Weather regime clustering (seasonal forecast output).  These summaries are based on one of six climatological regimes which have been derived from reanalysed data over a slightly larger area.  The area covers Europe, eastern Canada, the North Pole region and the north Atlantic.  It provides information about the possible transitions between regimes.

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