Canadian Climate Change Scenarios Network - National Node
Observations
Observed data can be accessed through the Data Access Interface (DAI).
Environment Canada Archive (raw data)
Daily observed data from meteorological stations are available through the National Climate Data and
Information Archive of Environment Canada: http://www.climate.weatheroffice.ec.gc.ca/ climateData/canada_e.html.
Table 1: List of potentially useful variables from Environment
Canada's National Archive Observations (not exhaustive), with their unit, at
surface or upper air levels, and from hourly, daily and monthly frequency.
| VARIABLE | UNIT | LEVEL(S) | FREQUENCY | TIME WINDOW |
| Ceiling | m | Near Surface | Hourly |
For the active stations: from their beginning to present (Regularly updated by EC) |
| Visibility | m | |||
| Mean Sea Level Pressure | kPa | |||
| Dew Point Temperature | °C | |||
| Wind Speed | km/h | |||
| Wind Direction (16 pts) | degree | |||
| Wind Direction (36 pts) | degree | |||
| Station Pressure | kPa | |||
| Dry-Bulb Temperature | °C | |||
| Wet-Bulb Temperature | °C | |||
| Relative Humidity |
fraction [0-1] |
|||
| Rainfall | mm | |||
| Sunshine | hrs | |||
| RF2 Sky Radiation | MJ/m2 | |||
| RF3 Reflected Solar Radiation (RF1-RF2) | MJ/m2 | |||
| RF4 Net All Wave Radiation | MJ/m2 | |||
| RF5 Total Downward Radiation | MJ/m2 | |||
| RF6 Total Upward Radiation | MJ/m2 | |||
| RF7 Daylight Illumination | MJ/m2 | |||
| RF8 Direct Solar Radiation | MJ/m2 | |||
| RF9 Downward Longwave Radiation | MJ/m2 | |||
| GRP118 Hourly Weather | MJ/m2 | |||
| Total Rainfall | mm |
Daily & Monthly |
||
| Total Snowfall | cm | |||
| Total Precipitation | mm | |||
| Maximum Temperature | K | Daily | ||
| Minimum Temperature | K | |||
| Mean Temperature | K | |||
| Snow on the Ground | cm | Hourly | ||
| Total Daily Sunshine hours | hrs | |||
| Greatest Amount of Rainfall in 5 minutes | mm | |||
| Greatest Amount of Rainfall in 10 minutes | mm | |||
| Greatest Amount of Rainfall in 15 minutes | mm | |||
| Greatest Amount of Rainfall in 30 minutes | mm | |||
| Greatest Amount of Rainfall in 1 hour | mm | |||
| Greatest Amount of Rainfall in 2 hours | mm | |||
| Greatest Amount of Rainfall in 6 hours | mm | |||
| Greatest Amount of Rainfall in 12 hours | mm | |||
| Greatest Amount of Rainfall in 24 hours | mm | |||
| Temperature | °C | Upper Air Levels | 00, 06, 12 and 18 UTC | - |
| Pressure | kPa | |||
| Altitude | m | |||
| Relative Humidity |
fraction [0-1] |
|||
| Wind Speed | m/s | |||
| Wind Direction | degree |
Environment Canada Homogenized/Adjusted (temperature/precipitation)
Special series of observed daily data from homogenized temperature and adjusted precipitation values are available from
Environment Canada: http://www.cccma.ec.gc.ca/hccd/.
Table 2: List of the homogenized and adjusted variables available from Environment Canada.
| VARIABLE | UNIT | LEVEL(S) | FREQUENCY | TIME WINDOW |
| Minimum Temperature | °C | Surface | Daily |
From the beginning of each station until 2003 (Regularly updated by EC) |
| Maximum Temperature | °C | |||
| Total Precipitation | mm/day | |||
| Total Rainfall | mm/day | |||
| Total Snowfall | mm/day |
 Created : 2007-01-14
Modified : 2007-03-22
Reviewed : 2007-01-14
Url of this page :
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