Oceanographic station data from bottle casts from the MCCULLOCH from Ocean Weather Station C (OWS-C) in the North Atlantic Ocean 29 May 1971 to 19 June 1971 (NODC Accession 7101317)

Oceanographic station data were collected from the MCCULLOCH 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 29 May 1971 to 19 June 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麦卡洛克号（MCCULLOCH），覆盖范围为海洋气象站C（52°45′N，035°30′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1971年5月29日至1971年6月19日期间采集。数据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（SD2）。完整格式说明可从NODC官网https://www.nodc.noaa.gov/General/NODC-Archive/sd2.html获取。 SD2格式存储了在离散深度层级采集的物理化学海洋学数据。绝大多数观测采用多瓶式南森采水器（multi-bottle Nansen casts）或其他类型水样采集器完成，少量数据（约占总数据量的5%）通过电子电导率-温度-深度记录仪（conductivity-temperature-depth, CTD）或盐度-温度-深度记录仪（salinity-temperature-depth, STD）获取。不过，提交至NODC的CTD/STD数据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。每个观测站均附带航行信息（如船舶名称、所属国家及所属机构）、观测位置、日期与时间。核心观测参数为温度与盐度，但也可能记录溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐及pH值。观测时的气象条件（如气温、气压、风速、浪况）也可被记录，此外还会附带辅助数据，例如水色（弗洛尔-乌勒色度标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）及海底深度。密度（sigma-t）、声速及动态深度异常值可通过实测参数计算得到。每个观测站既包含实测深度层级的观测数据，也包含经插值得到的标准深度层级数据集。