Temperature profiles from mechanical bathythermograph (MBT) casts from the USS ENGAGE in the South and East China Seas in support of the Fleet Observations of Oceanographic Data (FLOOD) project from 30 April to 23 July 1966 (NODC Accession 6600817)

MBT data were collected from the USS ENGAGE in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 30 April to 23 July 1966. 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.

本机械测温仪（Mechanical Bathythermograph, MBT）数据采集自ENGAGE号舰艇，用于支撑海洋资料舰队观测（Fleet Observations of Oceanographic Data, FLOOD）项目。该数据由美国海军及志愿观测船于1966年4月30日至7月23日期间采集。该观测平台配备专业观测设备并配有操作人员，可开展气象与海洋环境观测。数据已由国家海洋资料中心（National Oceanographic Data Center, NODC）处理为符合NODC标准的通用测温仪输出（Universal Bathythermograph Output, UBT）格式。完整的格式说明可从国家海洋资料中心官网获取，链接为：www.nodc.noaa.gov/General/NODC-Archive/bt.html。

UBT文件格式用于存储通过机械测温仪（MBT）获取的温深剖面数据。MBT观测的最大探测深度约为285米，因此其数据仅适用于研究海洋上层的热结构特征。每条观测记录均包含航次信息、观测日期、位置与时间，数据记录由多组温深数值对组成。该文件中的温度数据按均匀的5米深度间隔进行记录。