Clean Air Automatic Weather Station, 2004 quality-controlled observational data.

These files contain monthly observational data that have been quality-controlled using semi-automated computer programs as well as oversight by our staff. The filenames are prefixed with a label identifying one of three different observation intervals - ten minute (10min), one hour (1hr), and three hour (3hr). The rest of the filename consists of a standardized string composed of (in order) a three-letter code to indicate the station, the year, the month, and the frequency of the data (e.g. 3hr-[III][YYYY][MM]q3h.txt for three-hourly data).

Each set of daily observations begins at 0000 UTC. The hourly data are recorded at the top of every hourly interval: i.e. at 0000 UTC, 0100 UTC, 0200 UTC, 0300 UTC, etc. for the one-hour data; and at 0000 UTC, 0300 UTC, 0600, etc. for the three-hour data. Missing data are represented as 444.0.

The data files contain a two-line header that gives the year, month, 3 letter ID, Argos ID, and station name in the first line; and latitude, longitude, and elevation in the second line. The columns are organized in the following order:

  • Year
  • Julian day
  • Month
  • Day
  • Observation time (UTC)
  • Temperature (C)
  • Pressure (hPa)
  • Wind Speed (m/s)
  • Wind Direction (deg)
  • Relative Humidity (%)
  • Delta-T (C)
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Data

  • 10min-car200401q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 10min-car200402q10.txt

    Size: 257 KiB, Format: TXT

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  • 10min-car200403q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 10min-car200404q10.txt

    Size: 265.8 KiB, Format: TXT

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  • 10min-car200405q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 10min-car200406q10.txt

    Size: 265.8 KiB, Format: TXT

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  • 10min-car200407q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 10min-car200408q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 10min-car200409q10.txt

    Size: 265.8 KiB, Format: TXT

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  • 10min-car200410q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 10min-car200411q10.txt

    Size: 265.8 KiB, Format: TXT

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  • 10min-car200412q10.txt

    Size: 274.7 KiB, Format: TXT

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  • 1hr-car200401q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 1hr-car200402q1h.txt

    Size: 42.9 KiB, Format: TXT

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  • 1hr-car200403q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 1hr-car200404q1h.txt

    Size: 44.4 KiB, Format: TXT

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  • 1hr-car200405q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 1hr-car200406q1h.txt

    Size: 44.4 KiB, Format: TXT

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  • 1hr-car200407q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 1hr-car200408q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 1hr-car200409q1h.txt

    Size: 44.4 KiB, Format: TXT

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  • 1hr-car200410q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 1hr-car200411q1h.txt

    Size: 44.4 KiB, Format: TXT

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  • 1hr-car200412q1h.txt

    Size: 45.8 KiB, Format: TXT

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  • 3hr-car200401q3h.txt

    Size: 15.3 KiB, Format: TXT

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  • 3hr-car200402q3h.txt

    Size: 14.3 KiB, Format: TXT

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  • 3hr-car200403q3h.txt

    Size: 15.3 KiB, Format: TXT

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  • 3hr-car200404q3h.txt

    Size: 14.8 KiB, Format: TXT

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  • 3hr-car200405q3h.txt

    Size: 15.3 KiB, Format: TXT

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  • 3hr-car200406q3h.txt

    Size: 14.8 KiB, Format: TXT

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  • 3hr-car200407q3h.txt

    Size: 15.3 KiB, Format: TXT

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  • 3hr-car200408q3h.txt

    Size: 15.3 KiB, Format: TXT

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  • 3hr-car200409q3h.txt

    Size: 14.8 KiB, Format: TXT

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  • 3hr-car200410q3h.txt

    Size: 15.3 KiB, Format: TXT

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  • 3hr-car200411q3h.txt

    Size: 14.8 KiB, Format: TXT

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  • 3hr-car200412q3h.txt

    Size: 15.3 KiB, Format: TXT

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Additional Information

Maintainer Antarctic Meteorological Research and Data Center
Version 1.0
Last Updated June 22, 2026, 16:33 (UTC)
Created April 6, 2023, 17:10 (UTC)
Categories Automatic Weather Station
Citation Antarctic Meteorological Research and Data Center, 2004: Clean Air Automatic Weather Station, 2004 quality-controlled observational data. AMRDC Data Repository, accessed DD-MM-YYYY, https://doi.org/10.48567/hb8v-zr93.
Collection Begin Date 2004-01-01
Collection End Date 2004-12-31
DOI https://doi.org/10.48567/hb8v-zr93
Data Quality Quality-controlled
Format Text
Instruments Automatic Weather Station
NSF Award(s) 0338147, 0088058
Principal Investigator(s) Charles Stearns