Temperature profiles from XBT casts from the MARINE EVANGELINE and other platforms as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 11 October 1978 to 11 November 1978 (NODC Accession 7800843)

Temperature profiles were collected from XBT casts from the MARINE EVANGELINE and other platforms from 11 October 1978 to 11 November 1978. 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.

1978年10月11日至1978年11月11日期间，研究人员依托“海洋福音号”（MARINE EVANGELINE）及其他平台的投弃式温深仪（Expendable Bathythermograph，XBT）投放作业采集了温度剖面数据。该数据集由国家海洋渔业局（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）项目的组成部分开展采集工作，后经国家海洋数据中心（National Oceanographic Data Center，NODC）处理为统一温深仪输出（Universal Bathythermograph Output，UBT）标准格式。完整的格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。UBT格式存储了通过投弃式温深仪采集的温度-深度剖面数据。每一条观测记录均附带航次信息、站位坐标、观测日期及时间。数据记录以温度-深度值对的形式构成。投弃式温深仪数据文件中的温度值对应非均匀分布的深度，且仅记录了精准刻画温度曲线所需的最少数量的拐点。常规投弃式温深仪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1830米以深的剖面测量。