Temperature profiles from MBT casts from the DALLAS from Ocean Weather Station D (OWS-D) in the North Atlantic Ocean from 03 May 1968 to 28 May 1968 (NODC Accession 6800499)

Bathythermograph data were collected from the DALLAS within a 1-mile radius of Ocean Weather Station D (4400N 04100W) and in transit. Data were collected by the United States Coast Guard from 03 May 1968 to 28 May 1968. 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.

温深计（bathythermograph）数据采集自"DALLAS"号船只，覆盖范围包括海洋气象站D（44°00′N，41°00′W）周边1英里海域及航行途中区域。数据由美国海岸警卫队于1968年5月3日至1968年5月28日期间采集。该观测平台配备专业设备并配有操作人员，用于开展气象与海洋状况观测。所有数据均由国家海洋数据中心（National Oceanographic Data Center，简称NODC）处理为NODC标准通用温深计输出格式（Universal Bathythermograph Output，简称UBT）。完整格式说明可从NODC官网获取，网址为www.nodc.noaa.gov/General/NODC-Archive/bt.html。

UBT文件格式用于存储通过机械式温深计（mechanical bathythermograph，MBT）采集的温度-深度剖面数据。该仪器的最大观测深度约为285米，因此其数据仅适用于海洋上层热结构的研究。每份观测记录均包含航行信息、观测日期、位置与时间。数据记录由多组温度-深度值对构成，本文件中的温度数据以均匀的5米深度间隔进行记录。