Oceanographic station data from bottle casts from the RUSH from Ocean Weather Station N (OWS-N) in the North Pacific Ocean 11 March 1970 to 04 April 1970 (NODC Accession 7000822)

Oceanographic station data were collected from the RUSH within a 1-mile radius of Ocean Weather Station N (3000N 14000W) and in transit. Data were collected by the United States Coast Guard (USCG) from 11 March 1970 to 04 April 1970. 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由RUSH号考察船于海洋气象站N（30°00′N，140°00′W）周边1海里范围内及航行途中采集。数据采集工作由美国海岸警卫队（United States Coast Guard, USCG）于1970年3月11日至1970年4月4日期间开展。国家海洋数据中心（National Oceanographic Data Center, NODC）将所有数据处理为符合NODC标准的《站数据II输出格式》（Station Data II Output Format，简称SD2）。完整格式说明可通过NODC官网的https://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海洋与化学海洋学数据。多数观测采用多瓶式南森采水器（Nansen cast）或其他类型的水体采样器完成，仅约5%的观测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。不过，CTD/STD数据按照与南森采水数据一致的深度层级提交至NODC，并与南森采水数据采用相同流程进行处理与存储。每个测站均附带航次相关信息（如考察船、所属国家、所属机构）、观测位置、观测日期与时间。核心观测参数为温度与盐度，同时亦可记录溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐以及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）亦可被记录，同时还可附带诸如水色（福勒-于勒色度标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）以及海底水深等辅助数据。密度（sigma-t）、声速以及动态深度距平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观测数据，同时也附带经插值得到的标准深度层级数据集。