Contact : Claude Basdevant (basdevant@lmd.ens.fr)
Les cartes synoptiques
représentent
les champs de vent (CHAMPS_UV), de Température (CHAMPS_T),
d'humidité relative,
d'écart au point de rosé et de densité
(CHAMPS_RHR). Ces champs
sont calculées au moyen des prévisions
déterministes
à 10 jours du CEPMMT/ECMWF.
Bien que l’ECMWF produise une prévision météo
à 10 jours (240h) deux fois par jour (état initial J de
la prévi à 0h TU et 12h TU), les champs sont ici
calculées une fois par jour à 0h TU et sont disponibles
sur le web vers 7h30 TU.
The synoptic maps are
fields of wind (FIELDS_UV), of temperature (FILEDS_T), of relative
humidity, dew-point temperature difference and of density (FILEDS_RHR).
These fileds are computed by means of 10 day deterministic forecasts
. Although ECMWF produces ten-day deterministic forecasts (240h)
twice a day (at 0h UT and 12h UT), fields are obtained once a day at 0h
UT and are available on the web site around 7h30.
On the maps (computed at 0h UT, hour of forecast) :
FIELDS_UV :
Wind fields for 4 pressure levels :
# Pressure = 700 hPa
# Pressure = 850 hPa
# Pressure = 925 hPa
# Pressure = 1000 hPa
Computational domain 10S – 30N ; 30O – 30E, 2° grid (31x21).
8 forecast times : D, D+1, D+2, ..., D+7.
Wind fields are colored with their direction all days from D to D+7.
Two pages by
pressure levels with 4 maps for each page.
FIELDS_T :
- Temperature for 4 pressure levels :
# Pressure = 700 hPa
# Pressure = 850 hPa
# Pressure = 925 hPa
# Pressure = 1000 hPa
Computational domain 10S – 30N ; 30O – 30E, 2° gird (31x21).
8 forecast times : D, D+1, D+2, ..., D+7.
Temperature maps are drawn each two days from D to D+6.
One page for each
pressure level.
FIELDS_RHR :
- Relative humidity, Dew-point difference and density for 2 pressure levels :
# Pressure = 850 hPa
# Pressure = 925 hPa
Computational domain 10S – 30N ; 30O – 30E, 2° gird (31x21).
8 forecast times : D, D+1, D+2, ..., D+7.
The maps of relative humidity, of dew-point difference and of density are shown for the D day.
One page with 6 maps.