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Description of the upgrade

Two changes were introduced in the analysis:
  • humidity data from SYNOP observations were excluded from the analysis, to reduce excessive convective precipitation in short and early medium-range forecasts;
  • a redundancy check on aircraft data was introduced so that new high density data (ACARS) can be correctly used in the O1 scheme.

Note

Implemented: 09 June 1992  

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titleAll IFS cycles
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pageChanges to the forecasting system