Temperature profiles from mechanical bathythermograph (MBT) casts from the USS OBSERVER in the North Atlantic Ocean in support of the Fleet Observations of Oceanographic Data (FLOOD) project from 14 October 1969 to 27 October 1969 (NODC Accession 6900850)

MBT data were collected from the USS OBSERVER in support of the Fleet Observations of Oceanographic Data (FLOOD) project. Data were collected by US Navy; Ships of Opportunity from 14 October 1969 to 27 October 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.

本数据集的机械式海洋深度测温仪（mechanical bathythermograph, MBT）数据采集自“观察者”号（USS OBSERVER）美国海军舰艇，用于支撑海洋学数据舰队观测（Fleet Observations of Oceanographic Data, FLOOD）项目。数据由美国海军通过临时机会舰船采集，采集时段为1969年10月14日至1969年10月27日。该观测平台配备专用观测设备并配有操作人员，用于监测气象与海洋状况。所有数据已由国家海洋数据中心（National Oceanographic Data Center, NODC）处理为符合其标准的通用海洋深度测温仪输出（Universal Bathythermograph Output, UBT）格式。完整格式说明可通过NODC官网获取，网址为www.nodc.noaa.gov/General/NODC-Archive/bt.html。

通用海洋深度测温仪输出（UBT）文件格式用于存储通过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，因此其数据仅适用于研究海洋上层的热结构。每份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-深度数值对组成，本文件中的温度数据以5米为固定深度间隔进行记录。