Temperature profiles from XBT casts from the EDGAR M. QUEENY as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 14 October 1980 to 15 October 1980 (NODC Accession 8000590)
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Temperature profiles were collected from XBT casts from the EDGAR M. QUEENY from 14 October 1980 to 15 October 1980. Data were collected by the National Marine Fisheries Service (NMFS) as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project. 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 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 records are comprised of pairs of temperature-depth values. The XBT data files contain 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. Special instruments permitted measurements to be obtained to 1830 m.
本次数据集的温度剖面数据采集自1980年10月14日至10月15日期间,在EDGAR M. QUEENY号船上开展的投弃式温深仪(expendable bathythermograph, XBT)下放观测。数据由美国国家海洋渔业局(National Marine Fisheries Service, NMFS)作为海洋资源监测、评估与预测(Marine Resources Monitoring, Assessment and Prediction, MARMAP)项目的组成部分采集完成。数据经美国国家海洋数据中心(National Oceanographic Data Center, NODC)处理,转换为符合其标准的通用温深仪输出(Universal Bathythermograph Output, UBT)格式。完整的格式说明可从NODC官网的以下链接获取:www.nodc.noaa.gov/General/NODC-Archive/bt.html。 通用温深仪输出(UBT)格式包含通过投弃式温深仪采集得到的温度-深度剖面数据。每条观测记录均附带航次信息、观测位置、日期与时间。数据记录由多组温度-深度值对构成。本XBT数据文件中的温度值对应非均匀分布的深度,这些深度以精准刻画温度曲线所需的最少测点数量——即拐点(inflection points)——进行记录。标准型投弃式温深仪可获取的剖面最大深度为450米或760米,特殊定制仪器则可实现最大1830米深度的测量。



