Temperature profiles from XBT casts from the TANEY from Ocean Weather Station H (OWS-H) in the North Atlantic Ocean from 13 January 1974 to 01 February 1974 (NODC Accession 7400133)

Bathythermograph data were collected from the TANEY within a 1-mile radius of Ocean Weather Station H (3800N 07100W) and in transit. Data were collected by the United States Coast Guard from 13 January 1974 to 01 February 1974. The platform was equipped and staffed to observe weather and sea conditions. 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 file format is used for temperature-depth profile data obtained using expendable bathythermograph (XBT) instrument. Standard XBTs can obtain profiles at depths of about 450 or 760 m. With special instruments, measurements can be obtained to 1830 m. Cruise information, position, date, and time are reported for each observation. The data record comprises pairs of temperature-depth values. Unlike the MBT data file, in which temperature values are recorded at uniform 5m intervals, the XBT Data File contains temperature values at non-uniform depths. These depths are at a minimum number of points ("inflection points") required to record the temperature curve to an acceptable degree of accuracy. On output, however, the user may request temperature values either at inflection points or interpolated to uniform depth increments.温深仪（Bathythermograph）数据采集自TANEY号，采集范围涵盖海洋气象站H（38°00′N，71°00′W）周边1英里半径区域及航行途中。美国海岸警卫队于1974年1月13日至1974年2月1日期间采集了这批数据。该观测平台配备专业设备并配有操作人员，用于开展气象与海洋环境状况观测。数据由美国国家海洋数据中心（National Oceanographic Data Center, NODC）按照其通用温深仪输出（Universal Bathythermograph Output, UBT）标准格式进行处理。完整的格式说明可通过NODC官方网站的https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。 UBT文件格式用于存储通过一次性温深仪（Expendable Bathythermograph, XBT）获取的温度-深度剖面数据。标准型一次性温深仪可获取约450米或760米深度的温度剖面；配备专用仪器时，测量深度可达1830米。每份观测记录均包含航次信息、观测位置、观测日期与时间。数据记录由温度-深度数值对构成。与机械温深仪（Mechanical Bathythermograph, MBT）数据文件以均匀5米间隔记录温度数值不同，XBT数据文件中的温度数值对应非均匀深度。这类深度点为将温度曲线记录至可接受精度所需的最少点数，即“拐点（inflection points）”。但在输出阶段，用户可选择获取拐点处的温度数值，或通过插值得到均匀深度间隔下的温度数值。