Temperature profiles from mechanical bathythermograph (MBT) casts from the USS ADVANCE in the Coastal Waters of California in support of the Fleet Observations of Oceanographic Data (FLOOD) project from 18 June 1963 to 21 June 1963 (NODC Accession 6300735)

MBT data were collected from the USS ADVANCE in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 18 June 1963 to 21 June 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.

机械温深仪（Mechanical Bathythermograph, MBT）数据采集自美国海军“ADVANCE”号舰艇，用于支持海洋学数据舰队观测（Fleet Observations of Oceanographic Data, FLOOD）项目。该数据由美国海军依托机会观测船（Ships of Opportunity）采集，采集时段为1963年6月18日至1963年6月21日。该观测平台配备了专用仪器与作业人员，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标准的通用温深仪输出（Universal Bathythermograph Output, UBT）格式。完整的格式说明可通过NODC官网获取，网址为www.nodc.noaa.gov/General/NODC-Archive/bt.html。
通用温深仪输出（UBT）文件格式用于存储通过机械温深仪（MBT）采集的温度-深度剖面数据。MBT观测的最大探测深度约为285米，因此其数据仅适用于海洋上层热结构的相关研究。每条观测记录均包含航次信息、观测日期、位置与时间。单条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。