Oceanographic station data from bottle casts from the CAMPBELL from Ocean Weather Station C (OWS-C) in the North Atlantic Ocean from 22 June 1971 to 16 July 1971 (NODC Accession 7200031)

Oceanographic station data were collected from the CAMPBELL within a 1-mile radius of Ocean Weather Station C (5245N 03530W) and in transit. Data were collected by the United States Coast Guard (USCG) from 22 June 1971 to 16 July 1971. 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“CAMPBELL”号科考船，覆盖海洋气象站C（52°45′N，035°30′W）周边1英里海域及航行途中区域。数据采集时间为1971年6月22日至1971年7月16日，由美国海岸警卫队（United States Coast Guard, USCG）完成。所有数据均由NODC按照NODC标准Station Data II输出格式（SD2）进行处理。格式完整说明可通过NODC官方网站（www.nodc.noaa.gov/General/NODC-Archive/sd2.html）获取。

SD2（Station Data II输出格式）存储了离散深度层级下采集的物理化学海洋学数据。绝大多数观测数据通过多瓶式南森采水器（multi-bottle Nansen casts）或其他类型的水体采样装置获取，剩余约5%的少量数据则通过电子CTD（电导率-温度-深度，conductivity-temperature-depth, CTD）或STD（盐度-温度-深度，salinity-temperature-depth, STD）记录仪采集。不过CTD/STD数据上报至NODC时的深度层级与南森采水数据保持一致，因此其处理与存储流程与南森采水数据完全相同。每个测站均附带航行信息（如船舶、所属国家、所属机构）、位置、日期与时间。本次观测的核心测量参数为温度与盐度，同时可上报溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐及pH值等其他参数。采水作业时的气象条件（如气温、气压、风速、浪况）也可被记录，同时附带水体颜色（福勒-于勒色标，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）、声速及动态深度异常值等参数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观测数据，同时也附带经插值得到的标准深度层级数据集。