Possession Island Automatic Weather Station, 2009 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)
Download all (342.8 KiB)

Data

  • 10min-pos200901q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 10min-pos200902q10.txt

    Size: 244.2 KiB, Format: TXT

    Download
  • 10min-pos200903q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 10min-pos200904q10.txt

    Size: 261.6 KiB, Format: TXT

    Download
  • 10min-pos200905q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 10min-pos200906q10.txt

    Size: 261.6 KiB, Format: TXT

    Download
  • 10min-pos200907q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 10min-pos200908q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 10min-pos200909q10.txt

    Size: 261.6 KiB, Format: TXT

    Download
  • 10min-pos200910q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 10min-pos200911q10.txt

    Size: 261.6 KiB, Format: TXT

    Download
  • 10min-pos200912q10.txt

    Size: 270.3 KiB, Format: TXT

    Download
  • 1hr-pos200901q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 1hr-pos200902q1h.txt

    Size: 40.7 KiB, Format: TXT

    Download
  • 1hr-pos200903q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 1hr-pos200904q1h.txt

    Size: 43.7 KiB, Format: TXT

    Download
  • 1hr-pos200905q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 1hr-pos200906q1h.txt

    Size: 43.7 KiB, Format: TXT

    Download
  • 1hr-pos200907q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 1hr-pos200908q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 1hr-pos200909q1h.txt

    Size: 43.7 KiB, Format: TXT

    Download
  • 1hr-pos200910q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 1hr-pos200911q1h.txt

    Size: 43.7 KiB, Format: TXT

    Download
  • 1hr-pos200912q1h.txt

    Size: 45.1 KiB, Format: TXT

    Download
  • 3hr-pos200901q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download
  • 3hr-pos200902q3h.txt

    Size: 13.6 KiB, Format: TXT

    Download
  • 3hr-pos200903q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download
  • 3hr-pos200904q3h.txt

    Size: 14.6 KiB, Format: TXT

    Download
  • 3hr-pos200905q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download
  • 3hr-pos200906q3h.txt

    Size: 14.6 KiB, Format: TXT

    Download
  • 3hr-pos200907q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download
  • 3hr-pos200908q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download
  • 3hr-pos200909q3h.txt

    Size: 14.6 KiB, Format: TXT

    Download
  • 3hr-pos200910q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download
  • 3hr-pos200911q3h.txt

    Size: 14.6 KiB, Format: TXT

    Download
  • 3hr-pos200912q3h.txt

    Size: 15.1 KiB, Format: TXT

    Download

Additional Information

Maintainer Antarctic Meteorological Research and Data Center
Version 2025-03
Last Updated June 22, 2026, 17:14 (UTC)
Created May 18, 2022, 18:59 (UTC)
Categories Automatic Weather Station
Citation Antarctic Meteorological Research and Data Center, 2009: Possession Island Automatic Weather Station, 2009 quality-controlled observational data. AMRDC Data Repository, accessed DD-MM-YYYY, https://doi.org/10.48567/3vr3-hj15.
Collection Begin Date 2009-01-01
Collection End Date 2009-12-31
DOI https://doi.org/10.48567/3vr3-hj15
Data Quality Quality-controlled
Format Text
Instruments Automatic Weather Station
NSF Award(s) 0636873
Principal Investigator(s) Matthew A. Lazzara, Gregory Tripoli, George Weidner