Temperature profiles from mechanical bathythermograph (MBT) casts from the USS PRIME in the North Pacific Ocean in support of the Fleet Observations of Oceanographic Data (FLOOD) project from 04 November 1969 to 16 November 1969 (NODC Accession 6901042)

MBT data were collected from the USS PRIME in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 04 November 1969 to 16 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.

机械式深海测温仪（Mechanical Bathythermograph, MBT）数据采集自“PRIME”号舰艇，用于支持海洋学数据舰队观测（Fleet Observations of Oceanographic Data, FLOOD）项目。该数据由美国海军的机会观测船于1969年11月4日至1969年11月16日采集。该观测平台配备专用设备并配备操作人员，用于开展气象与海洋状况观测。数据经美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC标准通用深海测温仪输出（Universal Bathythermograph Output, UBT）格式。完整格式说明可通过NODC官网获取，网址为www.nodc.noaa.gov/General/NODC-Archive/bt.html。

UBT文件格式用于存储通过机械式深海测温仪（MBT）获取的温度-深度剖面数据。MBT观测的最大探测深度约为285米，因此此类数据仅可用于研究海洋上层的热结构。每条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，本文件中的温度数据以5米的均匀深度间隔进行记录。