TDL U.S. and Canada Surface Hourly Observations

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.

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Temporal Range

  • Begin:  1976-12-14T000000+00
    End:  2025-08-31T230000+00

Keywords

Resource Type dataset
Temporal Range Begin 1976-12-14T000000+00
Temporal Range End 2025-08-31T230000+00
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links N/A
Additional Information N/A
Resource Format ASCII
Standardized Resource Format ASCII
Asset Size 113150.453 MB
Legal Constraints

Creative Commons Attribution 4.0 International License
Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email datahelp@ucar.edu
Resource Support Organization N/A
Distributor NSF NCAR Geoscience Data Exchange
Metadata Contact Name N/A
Metadata Contact Email datahelp@ucar.edu
Metadata Contact Organization NSF NCAR Geoscience Data Exchange

Author
Publisher NSF National Center for Atmospheric Research
Publication Date 1987-09-03
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier d472000
Resource Version N/A
Topic Category climatologyMeteorologyAtmosphere
Progress onGoing
Metadata Date 2025-10-09T01:19:42Z
Metadata Record Identifier edu.ucar.gdex::d472000
Metadata Language eng; USA
Suggested Citation . (1987). TDL U.S. and Canada Surface Hourly Observations. NSF National Center for Atmospheric Research. https://gdex.ucar.edu/datasets/d472000. Accessed 10 January 2026.

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