Dat klinkt als een flinke upgrade; verbetering zoals die eens in de 10 jaar plaats vindt.
MAJOR UPGRADE TO THE GLOBAL DETERMINISTIC PREDICTION SYSTEM GDPS- VERSION 3.0.0) AT THE CANADIAN METEOROLOGICAL CENTRE ON WEDNESDAY FEBRUARY 13, 2013, STARTING WITH THE 1200 UTC RUN, THE CANADIAN METEOROLOGICAL CENTRE (CMC) OF THE METEOROLOGICAL SERVICE OF CANADA (MSC) WILL IMPLEMENT VERSION 3.0.0 OF ITS GLOBAL DETERMINISTIC PREDICTION SYSTEM (GDPS), HEREAFTER REFERRED TO AS GDPS-3.0.0. THE MAIN CHANGES OF THIS UPDATE ARE:
- CHANGES TO THE 4D-VAR DATA ASSIMILATION SYSTEM: - THE USE OF ADDITIONAL REMOTE SENSING DATA: - AN INCREASE IN HORIZONTAL RESOLUTION FROM 33 TO 25 KM: - IMPORTANT CHANGES IN THE GEM MODEL PHYSICS: - AND 1200 UTC RUNS NOW DONE TO 240 HOURS AS FOR 0000 UTC RUNS.
OBJECTIVE SCORES DONE IN DEVELOPMENT AND PARALLEL RUN PHASES SHOW IMPROVEMENTS IN THE FORECASTS WITH MOST METRICS THROUGHOUT MOST OF THE ATMOSPHERE, IN PARTICULAR OVER NORTH AMERICA IN WINTER. THESE
IMPROVEMENTS ARE OF AN ORDER OF MAGNITUDE USUALLY SEEN ONLY ONCE IN A DECADE. A SUBJECTIVE EVALUATION BY OPERATIONAL METEOROLOGISTS AT CMC CONFIRMED THOSE IMPROVEMENTS. OTHER FORECAST SYSTEMS WHICH
DEPEND ON GDPS OUTPUT ALSO BENEFIT FROM THE GDPS-3.0.0. CHANGES WERE MADE TO THE REGIONAL DETERMINISTIC PREDICTION SYSTEM (RDPS) TO HARMONIZE IT WITH THE NEW GDPS, AND THE RDPS FORECASTS ARE ALSO
IMPROVED AS A RESULT, SO ITS VERSION NUMBER IS ALSO INCREASED TO 3.1.0, AND IS HEREAFTER REFERRED TO AS RDPS-3.1.0.
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