WATER TEMPERATURE and other data from USCGC SHERMAN from 1981-09-01 to 1981-09-20 (NCEI Accession 8100663)

Data has been processed by NODC to the NODC standard Bathythermograph (XBT) (C116) format.

The C116/C118 format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data record was comprised of pairs of temperature-depth values. Unlike the MBT Data File, in which temperature values were recorded at uniform 5 m intervals, the XBT data files contained temperature values at non-uniform depths. These depths were recorded at the minimum number of points ("inflection points") required to accurately define the temperature curve. Standard XBTs can obtain profiles to depths of either 450 or 760 m. With special instruments, measurements can be obtained to 1830 m. Prior to July 1994, XBT data were routinely processed to one of these standard types. XBT data are now processed and loaded directly in to the NODC Ocean Profile Data Base (OPDB). Historic data from these two data types were loaded into the OPDB.

数据已由NODC（美国国家海洋和大气管理局）处理，并按照NODC标准Bathythermograph（XBT）格式（C116）进行格式化。C116/C118格式包含使用可抛式深海温度计（XBT）仪器获取的温度-深度剖面数据。对于每一观测，均报告了巡航信息、位置、日期和时间。数据记录由温度-深度值的成对出现构成。与记录温度值以均匀5米间隔的MBT数据文件不同，XBT数据文件中的温度值记录在非均匀深度。这些深度记录在能够精确定义温度曲线的最小数量点（“拐点”）上。标准XBT可以获取至450米或760米的剖面。使用特殊仪器，可以测量至1830米。在1994年7月之前，XBT数据通常被处理为这些标准类型之一。目前，XBT数据直接处理并加载至NODC海洋剖面数据库（OPDB）。这两种数据类型的历史数据已被加载至OPDB。