Oceanographic station data from bottle casts from the WINONA from Ocean Weather Station V (OWS-V) in the North Pacific Ocean 23 March 1970 to 18 May 1970 (NODC Accession 7000914)

Oceanographic station data were collected from the WINONA within a 1-mile radius of Ocean Weather Station V (3400N 16400E) and in transit. Data were collected by the United States Coast Guard (USCG) from 23 March 1970 to 18 May 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.海洋站数据采集自“威诺纳号”（WINONA），采集范围覆盖海洋气象站V号（34°00′N，164°00′E）周边1英里海域及航行途中。本次数据采集工作由美国海岸警卫队（United States Coast Guard, USCG）于1970年3月23日至1970年5月18日期间完成。数据由美国国家海洋数据中心（National Oceanographic Data Center, NODC）按照NODC标准站数据II输出格式（Station Data II Output Format, SD2）进行处理。完整的格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/sd2.html获取。 SD2格式存储离散深度层记录的物理化学海洋学数据。多数观测作业采用多瓶南森采水器或其他类型水体采样器完成，约5%的少量数据则通过电子电导率-温度-深度（conductivity-temperature-depth, CTD）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上报至NODC，并与南森采水数据采用相同流程进行处理与存储。各测站均会记录航行信息（如船舶、所属国家、研究机构）、站位坐标、日期与时间。核心测量参数为温度与盐度，同时也可记录溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐及pH值等参数。观测时的气象条件（如气温、气压、风向风速、浪况）同样可被记录，此外还可采集辅助数据，包括水体颜色（弗洛尔-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。密度（西格马-t，sigma-t）、声速及动态深度异常值可通过实测参数计算得到。每个测站既包含观测深度层获取的实测数据，同时也包含经插值得到的标准深度层级数据。