Temperature profiles from XBT casts from the TANEY from Ocean Weather Station H (OWS-H) in the North Atlantic Ocean from 22 October 1976 to 11 November 1976 (NODC Accession 7601840)

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 22 October 1976 to 11 November 1976. 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.

本数据集包含海水温度记录仪（Bathythermograph）数据，采集自"TANEY"平台，覆盖海洋气象站H（38°00′N，071°00′W）周边1英里范围内及航行途中。数据由美国海岸警卫队于1976年10月22日至1976年11月11日采集。该观测平台配备专业人员与观测设备，可开展气象与海洋状况观测。数据已由美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC标准通用海水温度记录仪输出（Universal Bathythermograph Output, UBT）格式。完整格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT文件格式用于存储使用抛弃式海水温度记录仪（Expendable Bathythermograph, XBT）获取的温深剖面数据。标准型XBT可获取约450米或760米水深的温深剖面数据；若搭载专用仪器，测量水深可达1830米。每条观测记录均包含航次信息、观测位置、日期与时间，数据记录由多组温深数值对构成。与MBT数据文件不同，后者以5米的均匀间隔记录温度数值，而XBT数据文件的温度数值对应非均匀水深。这些水深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数值，或通过插值得到等深度间隔下的温度值。