Oceanographic station data from bottle casts from the ABSECON from Ocean Weather Station H (OWS-H) in the North Atlantic Ocean from 20 November 1971 to 04 December 1971 (NODC Accession 7200968)

Oceanographic station data were collected from the ABSECON within a 1-mile radius of Ocean Weather Station H (3800N 07100W) and in transit. Data were collected by the United States Coast Guard (USCG) from 20 November 1971 to 04 December 1971. 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ABSECON，覆盖范围为H号海洋气象站（38°00′N，071°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1971年11月20日至1971年12月4日采集完成，后由美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为符合NODC标准的站数据II输出格式（SD2）。完整的格式说明可从NODC获取，网址为www.nodc.noaa.gov/General/NODC-Archive/sd2.html。 SD2格式包含在离散深度层级采集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剖面（multi-bottle Nansen casts）或其他类型的水体采样器完成，其中约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，CTD/STD数据按照与南森采水剖面数据一致的深度层级上报至NODC，其处理与存储方式与南森采水数据完全相同。每个测站均会上报航次信息（如船舶、所属国家、研究机构）、位置、日期与时间。核心测量参数为温度与盐度，同时也可上报溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐以及pH值等参数。 采水作业时的气象条件（如气温、气压、风向风速、海浪情况）同样可被上报，辅助数据则包括水体颜色（弗雷-乌勒色标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）以及海底深度。密度（密度距平，sigma-t）、声速以及动态深度距平的数值可通过实测参数计算得到。每个测站既包含观测深度层级下的实测数据，同时也包含经插值得到的标准深度层级对应的数据值。