Temperature profiles from XBT casts from the WIECZNO as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 13 November 1979 to 14 November 1979 (NODC Accession 7900334)

Temperature profiles were collected from XBT casts from the WIECZNO from 13 November 1979 to 14 November 1979. Data were collected by the National Marine Fisheries Service (NMFS) as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project. 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 permitted measurements to be obtained to 1830 m.

1979年11月13日至14日期间，通过WIECZNO号科考船的抛弃式深水温度计（expendable bathythermograph, XBT）投放作业获取了温度剖面数据。本次数据由美国国家海洋渔业局（National Marine Fisheries Service, NMFS）作为海洋资源监测、评估与预测（Marine Resources Monitoring, Assessment and Prediction, MARMAP）项目的一部分采集。美国国家海洋数据中心（National Oceanographic Data Center, NODC）已将数据处理为符合NODC标准的通用深水温度计输出（Universal Bathythermograph Output, UBT）格式。完整的格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT格式存储了通过抛弃式深水温度计（XBT）仪器获取的温深剖面数据。每条观测记录均附带航次信息、观测位置、日期与时间。数据记录由多组温深数值对构成。该XBT数据文件中的温度值对应非均匀分布的深度。这些深度以精准刻画温度曲线所需的最少测点——即拐点（inflection points）——进行记录。标准型XBT可获取的剖面最大深度为450米或760米。特殊定制仪器则可实现最大1830米深度的测量。