Oceanographic station data from bottle casts from the DUANE and other platforms from Ocean Weather Station B (OWS-B) in the North Atlantic Ocean 14 August 1969 to 18 December 1969 (NODC Accession 7000059)

Oceanographic station data were collected from the DUANE, INGHAM, and SOUTHWIND within a 1-mile radius of Ocean Weather Station B (5630N 05100W) and in transit. Data were collected by the United States Coast Guard (USCG) from 14 August 1969 to 18 December 1969. Data were processed by NODC to the NODC standard Station Data II Output Format (SD2). Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/sd2.html.

The SD2 format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters and temperature and salinity , but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels.

本数据集的海洋站数据采集自DUANE号、INGHAM号与SOUTHWIND号科考船，覆盖海洋气象站B（56°30′N，51°00′W）周边1英里海域及航行途中。数据由美国海岸警卫队（United States Coast Guard, USCG）于1969年8月14日至1969年12月18日期间采集完成，后经美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC标准站数据II输出格式（Station Data II Output Format, SD2）。完整格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/sd2.html获取。

SD2格式包含离散深度层级下记录的物理化学海洋学数据。多数观测采用多瓶式Nansen采水器或其他类型水体采样器完成，仅约5%的少量数据通过电子电导率-温度-深度（Conductivity-Temperature-Depth, CTD）仪或盐度-温度-深度（Salinity-Temperature-Depth, STD）记录仪获取。尽管如此，提交至NODC的CTD/STD数据的深度层级与Nansen采水数据保持一致，因此其处理与存储流程与Nansen采水数据完全相同。每个测站均记录航次信息（如船舶、所属国家/机构）、位置、日期与时间。核心测量参数以温度与盐度为主，同时可记录溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐及pH值。采水作业时的气象条件（如气温、气压、风向风速、海浪状况）亦可被收录，此外还包含水体颜色（福尔-乌勒色标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）及海底深度等辅助数据。密度（sigma-t）、声速与动力深度异常值可通过实测参数计算得到。每个测站既包含实测深度层级下的原始观测数据，同时也包含经插值得到的标准深度层级数据集。