Temperature profiles from mechanical bathythermograph (MBT) casts from the USCGC CHAUTAUQUA in the North Atlantic Ocean in support of the Integrated Global Ocean Services System (IGOSS) project from 29 April 1972 to 30 April 1972 (NODC Accession 7200760)

MBT data were collected from the USCGC CHAUTAUQUA in support of the Integrated Global Ocean Services System (IGOSS) project. Data were collected by the US Coast Guard from 29 April 1972 to 30 April 1972. 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（机械探温仪，Mechanical Bathythermograph）数据采集自美国海岸警卫队“肖托夸”号（USCGC CHAUTAUQUA），为支撑综合全球海洋服务系统（Integrated Global Ocean Services System，IGOSS）项目而获取。该批数据由美国海岸警卫队于1972年4月29日至1972年4月30日期间采集，后由美国国家海洋数据中心（National Oceanographic Data Center，NODC）按照NODC标准通用探温仪输出（Universal Bathythermograph Output，UBT）格式完成标准化处理。完整格式说明可通过NODC官方网址www.nodc.noaa.gov/General/NODC-Archive/bt.html查阅。
UBT文件格式用于存储通过机械探温仪（MBT）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，数据记录由温度-深度值对组成，本文件中的温度数据以5米为固定深度间隔进行记录。