Temperature profiles from XBT casts from the DELTA ECUADOR and other platforms as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 30 September 1978 to 05 October 1978 (NODC Accession 7800858)

Temperature profiles were collected from XBT casts from the DELTA ECUADOR and other platforms from 30 September 1978 to 05 October 1978. Data were collected by the National Marine Fisheries Service (NMFS) 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.

1978年9月30日至1978年10月5日期间，研究团队从DELTA ECUADOR平台及其他观测平台获取了投弃式温深仪（Expendable Bathythermograph, XBT）的温深剖面数据。该数据集由国家海洋渔业局（National Marine Fisheries Service, NMFS）及其他机构作为海洋资源监测、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）处理为符合NODC标准的通用温深仪输出（Universal Bathythermograph Output, UBT）格式。完整的格式说明可通过NODC官网https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT格式存储了通过投弃式温深仪获取的温深剖面数据。每份观测数据均包含航次信息、观测位置、日期与时间。数据记录由温深值对构成。XBT数据文件存储非等深度下的温度值，这些深度以精准刻画温度曲线所需的最少测点——即拐点——进行记录。标准XBT可获取最大深度为450米或760米的温深剖面，特制仪器则可实现1830米深度的剖面测量。