TN249-10 CTD and Nutrient Data

This Conductivity Temperature Depth (CTD) data set, consisting of 245 casts, was collected during a multi-disciplinary Bering Sea ice cruise on the R/V Thompson (TN249, May 9 - June 14, 2010). The cruise was funded by NSF for the BEST (Bering Sea Ecosystem Study) program, and supported by numerous agencies and institutions. The CTD operations on this cruise were managed by personnel from NOAA/PMEL in the EcoFOCI program, with deployment assistance from Thompson personnel. Water samples from casts were collected by various parties relative to their research needs. Profile data from CTD instruments were processed at NOAA/PMEL/EcoFOCI using standard techniques. Data from bottle samples include phosphate, silicate, nitrate, nitrite, ammonium, and chlorophyll. Data files are an array on a 1-meter grid and combine both averaged CTD profile data, and bottle samples where depths with no data are listed as "-1E+10" in text data files, and as 1.0e-35 in NetCDF files. Data are available in two formats: netCDF, and Ocean Data View ASCII files. CTD data contacts: Phyllis Stabeno, Peggy Sullivan. Nutrient and bottle data contact: Calvin Mordy. Note: Data have been updated as of 02 Oct 2013.

本导电率-温度-深度（Conductivity Temperature Depth, CTD）数据集包含245次CTD测站测量数据，采集自2010年5月9日至6月14日期间搭载R/V汤普森号（R/V Thompson，航次编号TN249）开展的白令海海冰多学科科考航次。本次航次由美国国家科学基金会（National Science Foundation, NSF）资助BEST（白令海生态系统研究，Bering Sea Ecosystem Study）项目，并得到多家机构与单位的支持。本次航次的CTD作业由美国国家海洋和大气管理局/太平洋海洋环境实验室（National Oceanic and Atmospheric Administration/Pacific Marine Environmental Laboratory, NOAA/PMEL）下属EcoFOCI项目团队负责统筹，R/V汤普森号机组人员协助完成设备投放。各科研团队根据自身研究需求，从各CTD测站采集了海水样本。CTD仪器获取的剖面数据由NOAA/PMEL/EcoFOCI团队采用标准处理流程完成质控与校准。采水器样本的检测指标涵盖磷酸盐、硅酸盐、硝酸盐、亚硝酸盐、铵盐与叶绿素。数据集文件以1米分辨率网格构建数组，整合了平均CTD剖面数据与采水器样本数据：无有效数据的深度在文本文件中以"-1E+10"标记，在NetCDF文件中以"1.0e-35"标记。数据集提供两种格式：NetCDF格式与海洋数据查看器（Ocean Data View）ASCII文本格式。CTD数据联系人：Phyllis Stabeno、Peggy Sullivan。营养盐与采水器样本数据联系人：Calvin Mordy。备注：本数据集最后更新于2013年10月2日。