Temperature profile data were collected using XBT casts from the AFRICAN COMET and other platforms in the Pacific Ocean, Indian Ocean, Atlantic Ocean, and more locations. Data were collected from 06 June 1974 to 12 November 1980. Data were collected by the US Navy; Ships of Opportunity and Farrell Lines with support from the Gulf of Mexico NOAA/NMFS Ships of Opportunity (SOOP) project. Data has been processed by NODC to the NODC standard Bathythermograph (XBT) (C116) format. The C116/C118 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 record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained 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. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB.

Temperature profile data were collected using XBT casts in the Northeast Atlantic Ocean from 30 May 1980 to 11 June 1980. Data were collected by the US Navy; Ships of Opportunity with support from the Gulf of Mexico NOAA/NMFS Ships of Opportunity (SOOP) project. Data has been processed by NODC to the NODC standard Bathythermograph (XBT) (C116) format. The C116/C118 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 record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained 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. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB.

Bathythermograph data was collected on various ships of opportunity in seas around the world from March 09, 1983, to March 19, 1985. The data were submitted by the US Navy Ships of Opportunity Program. Data has been processed to the NODC standard Bathythermograph (XBT) (C116) format. The C116/C118 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 record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained 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. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB. Data has been processed by NODC to the NODC standard Universal Bathythermograph (UBT) format. The UBT (C125) 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. Depths are selected by the originator - usually at standard horizons or some fixed interval. Standard XBTs can obtain profiles to depths of either 450 or 760 m. Special instruments permitted measurements to be obtained to 1830 m.

The data in this accession was collected using seventeen different ships during twenty four different cruises between July 16, 1971 and April 30, 1990. The real time data of water temperature at varying depth bathythermograph (XBT) was recorded in stripcharts by the US Navy. One box analog XBT'S and radio log sheets was submitted by Mr. Paul Stevens of Fleet Numerical Oceanography Center, Monterey, CA to NODC. The XBT data from these stripcharts have been digitized and is present in the current NODC data storage system in C116 file format.

The water depth and temperature data was collected from ships such as Lexa Maersk and 14 other ships. The data was collected from Eastern Pacific Ocean and Southern Atlantic Ocean as part of Gulf of Mexico NOAA/NMFS Ship of Opportunity (SOOP) project. The data was collected by Scripps Institution of Oceanography (SIO), La Jolla, CA from May 26, 1988 to September 11, 1989. The originator's bathythermograph (XBT) data with 2,254 observations was submitted in a diskette. The data has been converted and is now available on line in C116 file format of NODC.

The accession contains Bathythermograph XBT and MBT data in C116 and C128 format. The data spans a period from August 1943 to April 1990. The data is a compilation of unprocessed XBT data submitted by UK in accession numbers 7601931, 7800266 and 8700346.

Temperature profile data were collected using bathythermograph (XBT) from the ATLANTIS 2 from the Atlantic Ocean from May 17, 1978 to June 03, 1978. Data were submitted by Woods Hole Oceanographic Institution as a part of the IDOE/POLYMODE (International Decade of Ocean Exploration / combination of USSR POLYGON project and US MODE).

The bathythermograph data in this accession were collected using six different ships between November 2, 1990 and December 2, 1991. The real time data of water temperature at varying depth bathythermograph (XBT) was recorded by the US Navy. The data was submitted to NODC by Fleet Numerical Oceanography Center, Monterey CA. The XBT data has been digitized and is present in the current NODC data storage system in C116 file format.