Temperature profiles from XBT casts from the LASH ATLANTICO as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 11 March 1976 to 23 April 1976 (NODC Accession 7601067)

Temperature profiles were collected from XBT casts from the LASH ATLANTICO from 11 March 1976 to 23 April 1976. 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 450 m or 760 m. Special instruments permitted measurements to 1830 m.

1976年3月11日至4月23日期间，通过LASH ATLANTICO项目的投弃式温深仪（expendable bathythermograph, XBT）投放作业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。数据由美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC标准通用温深仪输出（Universal bathythermograph Output, UBT）格式。完整格式说明可从NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。
UBT格式存储通过投弃式温深仪采集的温度-深度剖面数据。每份观测记录均包含航次信息、观测位置、日期与时间。数据记录由温度-深度值对构成。XBT数据文件中的温度值对应非均匀分布的深度，这些深度仅记录了精准刻画温度曲线所需的最少测点（拐点）。标准型XBT可获取最大深度达450米或760米的温度剖面，专用型号仪器则可实现最大1830米深度的测量。