Oceanographic station data from bottle casts from the GALLATIN from Ocean Weather Station E (OWS-E) in the North Atlantic Ocean from 01 August 1972 to 17 August 1972 (NODC Accession 7300203)

Oceanographic station data were collected from the GALLATIN within a 1-mile radius of Ocean Weather Station E (3500N 0480W) and in transit. Data were collected by the United States Coast Guard (USCG) from 01 August 1972 to 17 August 1972. 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.本数据集为加拉廷号（GALLATIN）科考船采集的海洋站观测数据，采集范围覆盖E号海洋气象站（35°N，48°W）周边1英里半径海域及航行途中。数据由美国海岸警卫队（United States Coast Guard，USCG）于1972年8月1日至8月17日期间采集完成。美国国家海洋数据中心（National Oceanographic Data Center，NODC）将所有数据处理为NODC标准站数据II输出格式（Station Data II Output Format，SD2）。完整格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/sd2.html 查阅。 SD2格式存储了离散深度层记录的物理化学海洋学数据。绝大多数观测通过多瓶南森采水装置或其他类型水体采样器完成，仅约5%的少量数据通过电子导电率-温度-深度（CTD）记录仪或盐度-温度-深度（STD）记录仪获取。不过CTD/STD数据是以与南森采水采样数据一致的深度层级上报至NODC，因此其处理与存储流程与南森采样数据完全一致。 每个测站均附带航次信息（如船舶、所属国家、研究机构）、位置、日期与时间数据。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。采样时的气象条件（如气温、气压、风速、浪况）亦可被记录，辅助数据则包括水体颜色（福勒-尤勒色标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）以及海底深度。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。每个测站既包含实测深度层的观测数据，同时也包含经插值得到的标准深度层数据集。