Oceanographic station data from CTD casts from the ANDROSCOGGIN from Ocean Weather Station E (OWS-E) in the North Atlantic Ocean 06 September 1970 to 01 October 1970 (NODC Accession 7100093)

Oceanographic station data were collected from the ANDROSCOGGIN within a 1-mile radius of Ocean Weather Station E (3500N 04800W) and in transit. Data were collected by the United States Coast Guard (USCG) from 06 September 1970 to 01 October 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采集自“安德罗斯科金”号（ANDROSCOGGIN），采集范围覆盖海洋气象站E（35°00′N，48°00′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1970年9月6日至1970年10月1日采集完成。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官网获取，网址为https://www.nodc.noaa.gov/General/NODC-Archive/sd2.html。

SD2格式包含离散深度层记录的物理化学海洋学数据。大部分观测采用多瓶南森采水器（multi-bottle Nansen casts）或其他类型水样采集器完成，仅约5%的数据通过电子电导率-温度-深度（conductivity-temperature-depth, CTD）或盐度-温度-深度（salinity-temperature-depth, STD）记录仪获取。需说明的是，CTD/STD数据上报至NODC时的深度层级与南森采水数据保持一致，因此其处理与存储方式与南森采水数据完全相同。每个测站均附带航行信息（如船舶、所属国家/机构）、位置、日期与时间等内容。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。采水作业时的气象条件（如气温、气压、风向风速、浪况）也可被记录，此外还包含辅助数据，如水色（福勒-于勒色度标度，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。每个测站既包含观测深度层的实测数据，也包含经插值得到的标准深度层数据集。