GDPRS model

GDPRS model

Global Deterministic Prediction System (GDPS)

Issuing time

Model Data is updated every 12 hours at 00, and 12 UTC. The data is available 90 minutes after issue time.

Time parameters

72 hours forecasts issued twice per day, starting at 00Z and 12Z.

Levels

Fields on isobaric levels are available at 3-hourly forecast intervals. Surface fields are available at 1-hourly intervals.

Domain

Global lat-lon grid: 0.3° latitude by 0.45° longitude (approximately 33 kilometres).

Elements

Variable Available Levels Units
Wind Speed Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb knots
Wind Direction Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb Degrees True North
Temperature Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb Celsius
Specific Humidity Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb Kg/Kg
Relative Humidity Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb percentage
Geopotential Height Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb DAM
Dew Point Depression Surface (eta level), 1000 mb, 925mb, 850 mb, 700 mb, & 500 mb Celsius
Dew Point Temperature Surface (eta level) Celsius
Sea Level Pressure Surface (eta level) mb
Surface Pressure Surface (eta level) mb
Quantity of precipitation Surface (eta level) m
Total Precipitation rate Surface (eta level) m/s
Cloud Cover Percentage
Rain precipitation Surface (eta level) m
Freezing rain precipitation Surface (eta level) m
Snow precipitation Surface (eta level) m

License

The Conditions of use and need for attribution to Environment Canada for each data types are contained in the license text which you can access at the following: http://dd.weatheroffice.gc.ca/doc/LICENCE_GENERAL.txt