Temperature profiles from mechanical bathythermograph (MBT) casts from the USS EMBATTLE in the Sea of Japan in support of the Fleet Observations of Oceanographic Data (FLOOD) project on 10 March 1965 (NODC Accession 6500784)

MBT data were collected from the USS EMBATTLE in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity on 10 March 1965. 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.

MBT数据采集自恩巴特尔号（USS EMBATTLE），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1965年3月10日采集。观测平台配备专业观测设备并配备操作人员，用于开展气象与海洋状况观测。美国国家海洋数据中心（National Oceanographic Data Center, NODC）已将原始数据处理为符合NODC标准的通用深度温度计输出（Universal Bathythermograph Output, UBT）格式。完整格式说明可通过NODC官方网站www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT文件格式用于记录通过机械式深度温度计（Mechanical Bathythermograph, MBT）仪器获取的温度-深度剖面数据。MBT观测的最大探测深度约为285米，因此该类数据仅适用于研究海洋上层水体的热结构。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米为均匀深度间隔进行记录。