Temperature profiles from XBT casts from the VIGILANT as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 06 December 1980 to 07 December 1980 (NODC Accession 8100509)

Temperature profiles were collected from XBT casts from the VIGILANT from 06 December 1980 to 07 December 1980. 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.1980年12月6日至12月7日，研究船“VIGILANT”通过投放一次性深海温深仪（expendable bathythermograph，XBT）获取了温度剖面数据。该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）项目的一部分采集完成。美国国家海洋数据中心（National Oceanographic Data Center，NODC）已将这批数据处理为符合其标准的通用深海温深仪输出格式（Universal Bathythermograph Output，UBT）。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格式涵盖通过一次性深海温深仪（XBT）获取的温度-深度剖面数据。每条观测记录均附带航次信息、观测位置、观测日期与时间。数据记录由温度与深度的配对值构成。XBT数据文件中的温度值对应非均匀分布的观测深度，仅记录了精准刻画温度变化曲线所需的最少点数，即“拐点（inflection points）”。标准型XBT可获取深度达450米或760米的温度剖面，特殊定制型号仪器则可实现1830米深度的测量。