Temperature profiles from expendable bathythermograph (XBT) casts from NOAA Ship FAIRWEATHER in the North Pacific Ocean in support of the Integrated Global Ocean Services System (IGOSS) from 1983-09-20 to 1983-09-28 (NODC Accession 8300179)

XBT data were collected from NOAA Ship FAIRWEATHER in support of the Integrated Global Ocean Services System (IGOSS). Data were collected by the US DOC; NOAA; National Ocean Service - Seattle from 20 September 1983 to 28 September 1983. 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 expendable bathythermograph (XBT) instruments. Standard XBTs can obtain profiles at depths of about 450 or 760 m. With special instruments, measurements can be obtained to 1830 m. Cruise information, position, date, and time are reported for each observation. The data record comprises pairs of temperature-depth values. Unlike the MBT data file, in which temperature values are recorded at uniform 5m intervals, the XBT Data File contains temperature values at non-uniform depths. These depths are at a minimum number of points ("inflection points") required to record the temperature curve to an acceptable degree of accuracy. On output, however, the user may request temperature values either at inflection points or interpolated to uniform depth increments.本数据集的抛弃式深海测温仪（XBT）数据采集自NOAA“费尔韦瑟”号科考船，旨在支持综合全球海洋服务系统（IGOSS）的相关工作。数据由美国商务部（US DOC）、美国国家海洋和大气管理局（NOAA）及其下属西雅图国家海洋服务局于1983年9月20日至1983年9月28日期间完成采集。所有数据均由国家海洋数据中心（NODC）处理为符合NODC标准的通用抛弃式深海测温仪输出（UBT）格式。完整格式说明可从NODC官网www.nodc.noaa.gov/General/NODC-Archive/bt.html获取。 UBT文件格式用于存储通过抛弃式深海测温仪（XBT）获取的温度-深度剖面数据。标准型XBT可获取约450米或760米深度的温度剖面数据；若配备专用拓展仪器，测量深度可达1830米。每条观测记录均包含航次信息、观测位置、日期与时间。数据记录由多组温度-深度值对构成。与深度采样间隔固定为5米的机械深海测温仪（MBT）数据文件不同，本XBT数据文件中的温度值对应非均匀深度采样点。这些采样点为将温度曲线记录至可接受精度所需的最少拐点数量。在数据输出环节，用户可自主选择按原始拐点提取温度值，或通过插值生成均匀深度间隔下的温度数据。