Oceanographic station data from bottle casts from the KLAMATH, MCCULLOCH, and TANEY from Ocean Weather Station E (OWS-E), H (OWS-H), and N (OWS-N) in the North Atlantic Ocean and North Pacific Ocean 26 October 1968 to 12 December 1968 (NODC Accession 6900414)

Oceanographic station data were collected from the KLAMATH, MCCULLOCH, and TANEY within a 1-mile radius of Ocean Weather Station E (3500N 04800W), H (3800N 07100W), N (3000N 14000W), and in transit. Data were collected by the United States Coast Guard (USCG) from 26 October 1968 to 12 December 1968. 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.

本数据集为海洋站观测数据，由KLAMATH号、MCCULLOCH号与TANEY号作业船采集，采集范围覆盖海洋气象站E（35°00′N，048°00′W）、H（38°00′N，071°00′W）、N（30°00′N，140°00′W）周边1海里范围内，以及航行途中。数据采集工作由美国海岸警卫队（United States Coast Guard, USCG）于1968年10月26日至1968年12月12日期间完成。所有数据已由国家海洋数据中心（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）。完整的格式说明可通过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得到的物理化学海洋学数据。绝大多数观测数据通过多瓶南森采水器（multi-bottle Nansen casts）或其他类型的水体采样器获取，仅有约5%的少量数据通过电子电导率-温度-深度（conductivity-temperature-depth, CTD）记录仪或盐度-温度-深度（salinity-temperature-depth, STD）记录仪获取。不过，所有CTD/STD数据均已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的流程进行处理与存储。每个海洋站均附带对应航次信息（如作业船舶、所属国家与研究机构）、站位经纬度、观测日期与时间等元数据。核心观测参数为温度与盐度，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值等指标。观测时的气象条件（如气温、气压、风速风向、海况等）也可被记录，同时还包含水体颜色（福勒-于勒色标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）及海底水深等辅助观测数据。密度（sigma-t）、声速及动态深度异常值等指标则通过实测参数计算得到。每个海洋站数据集既包含在实测深度层级获取的原始观测数据，也包含经插值后得到的标准深度层级数据集。