Temperature profiles from XBT casts from the TANEY from Ocean Weather Station H (OWS-H) in the North Atlantic Ocean from 05 January 1975 to 25 January 1975 (NODC Accession 7500106)

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 05 January 1975 to 25 January 1975. 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.海水温度深度记录仪（Bathythermograph）数据采集自TANEY号平台，采集范围覆盖H海洋气象站（北纬38°00′，西经71°00′）周边1英里半径区域以及航行途中。相关数据由美国海岸警卫队于1975年1月5日至1月25日期间收集。该观测平台配备专业观测设备并配有操作人员，用于开展气象与海况监测。数据经美国国家海洋数据中心（NODC）处理，转换为符合NODC标准的通用海水温度深度记录仪输出（Universal Bathythermograph Output, UBT）格式。完整的格式说明可从NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。 UBT文件格式用于存储通过抛弃式海水温度深度记录仪（Expendable Bathythermograph, XBT）获取的温度-深度剖面数据。标准型XBT可获取约450米或760米深度的剖面数据；若配备专用仪器，测量深度可达1830米。每条观测记录均包含航次信息、观测位置、日期与时间，数据记录由温度-深度值对组成。与机械海水温度深度记录仪（Mechanical Bathythermograph, MBT）数据文件以均匀5米间隔记录温度值不同，XBT数据文件的温度值对应的深度并不均匀，这些深度点为以可接受精度记录温度曲线所需的最少点数，即“拐点”。但在输出环节，用户可选择获取拐点处的温度值，或是将数据插值至均匀深度间隔后再获取温度值。