TDL U.S. and Canada Surface Hourly Observations

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Abstract:

Hourly airways data over US, Canada for about 2000 stations. There are also some observations for Mexico and most Central American countries. The data is taken directly from all the METAR reports. METAR data includes ASOS, AWOS, and non-automated reports. Some reports might not report wind. However, during the quality control, if there is a wind direction reported greater than 360, it is taken as an error and changed to a missing value. Wind speed quality control; if winds are greater than 75 they are set to missing, which is represented as a blank in the table. If the wind is no wind, the speed and direction are set to 0.

Temporal Range:
1976-12-14 00:00:00 +0000 to 2025-08-31 23:00:00 +0000
Updates:
Half-Yearly
Variables:
Air Temperature Cloud Base Height Cloud Frequency Dew Point Temperature
Maximum/Minimum Temperature Precipitation Amount Sea Level Pressure Snow
Snow Depth Sunshine Surface Pressure Surface Winds
Surface Winds Visibility
Vertical Levels:
Ground or water surface
Temporal Frequencies:
Every hour
Data Types:
Platform Observation
Data Contributors:
DOC/NOAA/NWS/OST/MDL
Meteorological Development Laboratory, Office of Science and Technology, National Weather Service, NOAA, U.S. Department of Commerce
Publications:
Vincent, Lucie A., William A. van Wijngaarden, and Ron Hopkinson, 2007: Surface Temperature and Humidity Trends in Canada for 1953-2005. J. of Climate, 20, 5100-5113.
Total Volume:
113.15 GB (Entire dataset) Volume details by dataset product
Data Formats:
ASCII (see dataset documentation)
Metadata Record:
Data License:
Data LicenseThis work is licensed under a Creative Commons Attribution 4.0 International License.
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