Temperature profiles from mechanical bathythermograph (MBT) casts from the USS FIRM in the North Pacific Ocean in support of the Fleet Observations of Oceanographic Data (FLOOD) project from from 30 July 1969 to 05 August 1969 (NODC Accession 6900652)

MBT data were collected from the USS FIRM in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 30 July 1969 to 05 August 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.

机械式温深仪（Mechanical Bathythermograph, MBT）数据采集自USS 坚定号，用于支持海洋数据舰队观测项目（Fleet Observations of Oceanographic Data, FLOOD）。该数据由美国海军及机会观测船于1969年7月30日至1969年8月5日期间采集。观测平台配备专业人员，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）按照其标准的通用温深仪输出（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获取，其网址为www.nodc.noaa.gov/General/NODC-Archive/bt.html。
通用温深仪输出（UBT）格式适用于通过机械式温深仪（MBT）获取的温度-深度剖面数据。机械式温深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。每次观测均会记录航次信息、日期、位置与时间。数据记录由多组温度-深度值对组成。该文件中的温度数据以每5米的均匀深度间隔进行记录。