Temperature profiles from mechanical bathythermograph (MBT) casts from the USS DIRECT in the North Atlantic Ocean in support of the Fleet Observations of Oceanographic Data (FLOOD) project from 07 November 1969 to 25 November 1969 (NODC Accession 6901053)

MBT data were collected from the USS DIRECT in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 07 November 1969 to 25 November 1969. The platform was equipped and staffed to observe weather and sea conditions. 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 file format is used for temperature-depth profile data obtained using the mechanical bathythermograph (MBT) instrument. The maximum depth of MBT observations is approximately 285 m. Therefore, MBT data are useful only in studying the thermal structure of the upper layers of the ocean. Cruise information, date, position, and time are reported for each observation. The data record comprises pairs of temperature-depth values. Temperature data in this file are recorded at uniform 5 m depth intervals.机械探温仪（Mechanical Bathythermograph, MBT）数据采集自美国海军DIRECT号舰艇（USS DIRECT），用于支撑海洋学数据舰队观测（Fleet Observations of Oceanographic Data, FLOOD）项目。该数据由美国海军及机会观测船（Ships of Opportunity）于1969年11月7日至1969年11月25日期间采集。该舰艇配备了专业人员与观测设备，用于开展气象与海洋状况观测。数据由美国国家海洋数据中心（National Oceanographic Data Center, NODC）按照其标准的通用探温仪输出（Universal Bathythermograph Output, UBT）格式进行处理。完整的格式说明可从美国国家海洋数据中心官网获取，链接为：www.nodc.noaa.gov/General/NODC-Archive/bt.html。 通用探温仪输出（UBT）文件格式用于存储通过机械探温仪获取的温度-深度剖面数据。机械探温仪观测的最大深度约为285米，因此该类数据仅可用于研究海洋上层的热结构。每份观测记录均包含航次信息、观测日期、位置与时间。数据记录由多组温度-深度数值对构成，该文件中的温度数据按照统一的5米深度间隔进行记录。