GDPS Upgrade

[vortex95]

https://dd.meteo.gc.ca/doc/genots/2026/05/25/NOCN03_CWAO_251940___18749

NEW VERSION OF THE GLOBAL DETERMINISTIC PREDICTION
SYSTEM (GDPS) OF THE METEOROLOGICAL SERVICE OF CANADA (MSC)

ON TUESDAY, MAY 26, 2026, STARTING WITH THE 12 UTC RUN, THE
CANADIAN METEOROLOGICAL CENTRE'S GLOBAL DETERMINISTIC PREDICTION
SYSTEM (GDPS) WILL BE UPDATED TO VERSION 10.0.0, SPECTRALLY NUDGED
BY THE GEML (GLOBAL ENVIRONMENTAL EMULATOR) ARTIFICIAL
INTELLIGENCE-BASED MODEL.

SOME OF THE KEY ENHANCEMENTS TO THE GDPS IN VERSION 10.0.0 ARE:
- SIGNIFICANT IMPROVEMENT IN FORECAST ACCURACY OF GDPS 10.0.0
COMPARED TO THE OPERATIONAL GDPS 9.1.0
- IMPROVEMENTS ACHIEVED THROUGH LARGE-SCALE SPECTRAL NUDGING TOWARD
AI-BASED GEML FORECASTS
- ROBUST AND STATISTICALLY SIGNIFICANT GAINS IN THE FREE
ATMOSPHERE, PARTICULARLY IN THE MID- AND UPPER TROPOSPHERE
- SIGNIFICANT GAINS BETWEEN DAYS 3 AND 10: MORE MODEST IMPROVEMENTS
DURING THE FIRST 2-3 FORECAST
- IMPROVED PREDICTED TROPICAL CYCLONE TRACKS

FOR DETAILED INFORMATION ON THE INNOVATIONS AND PERFORMANCE THAT
ARE ACHIEVED THROUGH THIS IMPLEMENTATION, PLEASE CONSULT THE
SECTION ENTITLED: DATA AND PRODUCTS OF THE GLOBAL DETERMINISTIC
PREDICTION SYSTEM, WITHIN THE MSC OPEN DATA PAGE AT THE
FOLLOWING LINK (IN LOWER CASE):
HTTPS://ECCC-MSC.GITHUB.IO/OPEN-DATA/MSC-DATA/NWP_GDPS/
README_GDPS_EN/

PLEASE ADDRESS ANY QUESTIONS CONCERNING THIS IMPLEMENTATION TO (IN
LOWER CASE):
F.PRODUCTION-INFO.F(AT)EC.GC.CA

SIEWE ADM-MSC / SMA-SMC OTTAWA