Temperature profiles from XBT casts from the DELTA MAR and other platforms as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 26 October 1978 to 24 January 1979 (NODC Accession 7900096)

Temperature profiles were collected from XBT casts from the DELTA MAR and other platforms from 26 October 1978 to 24 January 1979. Data were collected by the Delta Steamship Co. and other institutions 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. Date received: 1978-06-091978年10月26日至1979年1月24日期间，研究人员通过“DELTA MAR”号及其他平台的抛弃式温深计（expendable bathythermograph, XBT）投放作业，获取了温度剖面数据。该数据集由达美轮船公司（Delta Steamship Co.）及其他机构采集，作为海洋资源监测、评估与预报（Marine Resources Monitoring, Assessment and Prediction, MARMAP）项目的一部分。数据由美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为符合NODC标准的通用温深计输出（Universal Bathythermograph Output, UBT）格式。完整的格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/bt.html查阅获取。 UBT格式包含通过抛弃式温深计获取的温度-深度剖面数据。每份观测记录均附带航次信息、站位坐标、观测日期与时间。数据记录由多组温度-深度数值对构成。XBT数据文件中的温度值对应非均匀分布的深度，这些深度以精准刻画温度曲线所需的最少测点数量——即“拐点”——进行记录。标准型XBT可获取深度达450米或760米的剖面数据，特殊定制仪器则可将测量深度拓展至1830米。 数据接收日期：1978-06-09