Temperature profiles from XBT casts from the DELTA NORTE and other platforms as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 08 June 1980 to 09 September 1980 (NODC Accession 8000473)

Temperature profiles were collected from XBT casts from the DELTA NORTE and other platforms from 08 June 1980 to 09 September 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6月8日至1980年9月9日期间，本数据集的温度剖面数据源自德尔塔诺特（DELTA NORTE）号及其他观测平台开展的抛弃式温深仪（Expendable Bathythermograph, XBT）投放作业。该数据由国家海洋渔业局（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）项目的组成部分完成采集。国家海洋数据中心（National Oceanographic Data Center, NODC）将原始数据处理为符合NODC标准的通用温深计输出（Universal Bathythermograph Output, UBT）格式。有关该格式的完整说明，可通过NODC官方网站www.nodc.noaa.gov/General/NODC-Archive/bt.html查阅。 UBT格式包含通过抛弃式温深仪（XBT）获取的温度-深度剖面数据。每次观测均记录有航次信息、站位坐标、观测日期与时间。每条数据记录由温度-深度值对构成。XBT数据文件中的温度值对应非均匀分布的测量深度，这些深度以精准刻画温度曲线所需的最少测点（拐点，inflection points）进行记录。标准型XBT可获取深度达450米或760米的温深剖面，特殊定制仪器则可实现深度达1830米的剖面测量。