Temperature profiles from XBT casts from the GLACIER and other platforms as part of the International Decade of Ocean Exploration (IDOE) from 1973-04-17 to 1973-12-18 (NCEI Accession 7400397)

Temperature profiles were collected from XBT casts from the GLACIER and other platforms from 17 April 1973 to 18 December 1973. Data were collected by the National Marine Fisheries Service (NMFS) and the United States Coast Guard (USCG) as part of the International Decade of Ocean Exploration (IDOE). Data were processed by NODC to the NODC standard Universal Bathythermograph Output (UBT) format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/bt.html.

The UBT format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data records are comprised of pairs of temperature-depth values. The XBT data files contain temperature values at non-uniform depths. These depths were recorded at the minimum number of points ("inflection points") required to accurately define the temperature curve.
Standard XBTs can obtain profiles to depths of either 450 or 760 m. Special instruments permit measurements to be obtained to 1830 m.