Temperature profiles from XBT casts from the MARINE EVANGELINE as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 17 January 1980 to 18 January 1980 (NODC Accession 8000027)

Temperature profiles were collected from XBT casts from the MARINE EVANGELINE from 17 January 1980 to 18 January 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1月17日至1月18日期间，研究人员从海洋福音号（MARINE EVANGELINE）的投弃式温深仪（expendable bathythermograph, XBT）投放作业中采集得到温度剖面数据。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、评估与预报（Marine Resources Monitoring, Assessment and Prediction, MARMAP）项目的组成部分完成采集，后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。完整格式说明可通过NODC官方网站www.nodc.noaa.gov/General/NODC-Archive/bt.html查询获取。
UBT格式存储了通过投弃式温深仪（XBT）采集得到的温度-深度剖面数据。每份观测记录均包含航次信息、站位坐标、观测日期与时间。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，这些深度点为精准刻画温度变化曲线所需的最少数量的“拐点（inflection points）”。标准型XBT可获取深度达450米或760米的温度剖面，特殊定制仪器则可实现1830米深度的剖面测量。