Temperature profiles from MBT casts from the PONTCHARTRAIN from Ocean Weather Station N (OWS-N) in the North Pacific Ocean from 23 December 1966 to 17 January 1967 (NODC Accession 6600346)

Bathythermograph data were collected from the PONTCHARTRAIN within a 1-mile radius of Ocean Weather Station N (3000N 14000W) and in transit. Data were collected by the United States Coast Guard from 23 December 1966 to 17 January 1967. 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.

本数据集为温深仪（Bathythermograph）观测数据，采集自庞恰特雷恩号（PONTCHARTRAIN），观测区域覆盖N号海洋气象站（30°00′N，140°00′W）周边1英里范围及航行途中。数据由美国海岸警卫队于1966年12月23日至1967年1月17日期间采集，该观测平台配备了相应设备并配有操作人员，可开展气象与海洋状况观测。所有数据已由国家海洋数据中心（NODC）处理为NODC标准通用温深仪输出（Universal Bathythermograph Output，UBT）格式。完整格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。

UBT文件格式适用于机械式温深仪（mechanical bathythermograph，MBT）获取的温深剖面数据。MBT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特征。每条观测记录均包含航次信息、日期、位置与时间，数据记录由多组温深数值对组成，文件内的温度数据以固定5米的深度间隔进行记录。