Temperature profiles from mechanical bathythermograph (MBT) casts from the USS ESTEEM in the South China Sea in support of the Fleet Observations of Oceanographic Data (FLOOD) project from 06 December 1963 to 07 December 1963 (NODC Accession 6300442)

MBT data were collected from the USS ESTEEM in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 06 December 1963 to 07 December 1963. 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“埃斯蒂姆”号（USS ESTEEM），用于支持海洋数据舰队观测（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1963年12月6日至1963年12月7日期间采集。观测平台配备专业设备与人员，用于监测气象与海洋状况。美国国家海洋数据中心（National Oceanographic Data Center, NODC）已将数据处理为符合其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官网https://www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT文件格式用于存储通过机械式深度温度计（Mechanical Bathythermograph, MBT）采集的温度-深度剖面数据。MBT观测的最大深度约为285米，因此该类数据仅适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-深度值对构成。本文件中的温度数据以5米为固定深度间隔进行记录。