NOCN43 CWAO 121910
GENOT TLTP. NO. 007

BILINGUAL MESSAGE - ENGLISH TEXT TO FOLLOW FRENCH TEXT MESSAGE 
BILINGUE - LE TEXTE ANGLAIS SUIT LE TEXTE FRANCAIS

TEXTE FRANCAIS:

LA TRANSMISSION LE 10 JUIN 2009 ENTRE 2015 UTC ET 2030 UTC DES 
FICHIERS DE MATRICES SCRIBE PRODUITS A PARTIR DE LA PASSE DE 1800 
UTC DU MODELE GEM-REGIONAL MARQUE LA MISE EN OEUVRE OFFICIELLE DES 
PASSES DE 0600 UTC ET 1800 UTC DU SYSTEME DE PREVISION REGIONAL. LE 
DOUBLEMENT DE LA FREQUENCE DE PRODUCTION DES PREVISIONS A COURT 
TERME DU MODELE GEM-REGIONAL VISE A MIEUX REPONDRE AUX BESOINS 
EXPRIMEES PAR LA CLIENTELE DU SERVICE METEOROLOGIQUE DU CANADA, EN 
AUTRES CEUX DU DOMAINE DE L'AVIATION CIVILE.

CES PASSES ETAIENT EXECUTEES EN MODE EXPERIMENTAL DEPUIS PRES D'UN 
AN. DES DONNEES NUMERIQUES EN FORMATS GRIB ET BUFR ETAIENT 
TRANSMISES DEPUIS QUELQUES MOIS DEJA A PARTIR DE CES PASSES 
INTERMEDIAIRES. DE PLUS, UNE SUITE COMPLETE DE PRODUITS DE 
PREVISION GRAPHIQUES OU ALPHANUMERIQUES EMANANT DE CES PASSES SERA 
ACTIVEE GRADUELLEMENT AU COURS DES PROCHAINS MOIS.

NOTEZ QUE CES PASSES SONT INTEGREES JUSQU'A 54 HEURES AFIN QU'ELLES 
SOIENT COMPATIBLES AVEC LES PASSES DE 0000 UTC ET 1200 UTC 
EXECUTEES JUSQU'A 48 HEURES. AUSSI, AFIN D'EN FACILITER LA MISE EN 
OEUVRE, LE TEMPS DE COUPURE POUR L'ACQUISITION DE DONNEES POUR CES 
PASSES EST DE 1H20, MAIS IL SERA ETENDU SOUS PEU A 2H05, A L'EGAL 
DE CELUI DES PASSES DE 0000 UTC ET 1200 UTC, FAVORISANT AINSI UNE 
QUALITE PLUS STABLES DES PREVISIONS D'UNE PASSE A L'AUTRE.

UNE NOTE TECHNIQUE DETAILLANT LA PERFORMANCE GENERALE DE CES 
NOUVELLES PASSES SERA DISPONIBLE BIENTOT A L'ADRESSE:

HTTP://WWW.SMC.EC.GC.CA/CMC/OP_SYSTEMS/RECENT_F.HTML

POUR DES QUESTIONS CONCERNANT LA MISE EN OEUVRE, VOUS POUVEZ ECRIRE 
A: PRODUCTION-INFO (AT) CMC.EC.GC.CA

ENGLISH TEXT:

THE TRANSMISSION BETWEEN 2015 UTC AND 2030 UTC ON JUNE 10TH 2009, 
OF SCRIBE MATRICES FILES PRODUCED FROM OUTPUTS OF THE 1800 UTC RUN 
OF THE GEM-REGIONAL MODEL, MAKES OFFICIAL THE IMPLEMENTATION OF THE 
0600 UTC AND 1800 UTC RUNS OF THE REGIONAL PREDICTION SYSTEM. 
DOUBLING THE FREQUENCY OF THE PRODUCTION OF SHORT-TERM FORECASTS 
FROM THE GEM-REGIONAL MODEL SEEKS TO ADDRESS THE NEEDS EXPRESSED BY 
CUSTOMERS OF THE METEOROLOGICAL SERVICE OF CANADA, AMONG OTHERS 
THOSE OF CIVIL AVIATION.

THESE RUNS HAVE BEEN EXECUTED FOR NEARLY A YEAR IN EXPERIMENTAL 
MODE. GRIB AND BUFR FORMAT DIGITAL DATA HAVE BEEN TRANSMITTED FOR A 
FEW MONTHS ALREADY FROM THE NEW INTERMEDIATES RUNS. IN ADDITION, A 
FULL SUITE OF GRAPHICAL OR ALPHANUMERIC FORECAST PRODUCTS FROM 
THESE RUNS WILL BE ACTIVATED GRADUALLY DURING THE NEXT FEW MONTHS.

IT SHOULD BE NOTED THAT THESE RUNS ARE INTEGRATED TO 54 HOURS TO 
ENSURE THEIR COMPATIBILITY WITH THE 0000 UTC AND 1200 UTC RUNS 
WHICH ARE INTEGRATED TO 48 HOURS. ALSO, IN ORDER TO FACILITATE 
THEIR IMPLEMENTATION, THE CUTOFF TIME FOR DATA ACQUISITION FOR 
THOSE RUNS IS 1H20, BUT WILL SOON BE EXTENDED TO 2H05, EQUAL TO THE 
CUTOFF TIME OF THE OF 0000 UTC AND 1200 UTC RUNS, THUS PROMOTING 
FORECASTS OF EQUIVALENT QUALITY FROM ONE RUN TO ANOTHER.

A TECHNICAL NOTE DESCRIBING THE GENERAL PERFORMANCE OF THESE NEW 
RUNS WILL SOON BE MADE AVAILABLE AT:

HTTP://WWW.SMC.EC.GC.CA/CMC/OP_SYSTEMS/RECENT_E.HTML

FOR SPECIFIC QUESTIONS CONCERNING THIS IMPLEMENTATION, YOU CAN 
WRITE TO: PRODUCTION-INFO (AT)CMC.EC.GC.CA

GRIMES ADMA - MSC / SMA - SMC TORONTO