Temperature profiles from XBT casts from the ENDEAVOR as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 1982-07-25 (NODC Accession 8200148)

Temperature profiles were collected from XBT casts from the ENDEAVOR from 25 July 1982. 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.

1982年7月25日，“奋进号”（ENDEAVOR）调查船通过投弃式温深仪（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）项目的一部分采集完成。数据由国家海洋数据中心（National Oceanographic Data Center, NODC）处理为统一温深仪输出（Universal Bathythermograph Output, UBT）标准格式。完整格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT格式包含使用XBT获取的温深剖面数据。每份观测记录均包含航次信息、观测位置、日期与时间。数据记录由温深数值对构成。XBT数据文件存储了非均匀深度下的温度数值，这些深度以准确刻画温度曲线所需的最少测点（即“拐点”）进行记录。标准XBT可获取深度达450米或760米的剖面数据，特殊型号仪器则可实现1830米深度的测量。