Oceanographic station data from bottle casts from the CHINCOTEAGUE from Ocean Weather Station B (OWS-B) in the North Atlantic Ocean 17 November 1969 to 06 December 1969 (NODC Accession 7000141)

Oceanographic station data were collected from the CHINCOTEAGUE within a 1-mile radius of Ocean Weather Station B (5630N 05100W) and in transit. Data were collected by the United States Coast Guard (USCG) from 17 November 1969 to 06 December 1969. 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“钦科蒂格”号（CHINCOTEAGUE），覆盖范围为海洋气象站B（56°30′N，051°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1969年11月17日至12月6日期间采集完成，后由美国国家海洋数据中心（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）。完整格式说明可通过NODC官方链接www.nodc.noaa.gov/General/NODC-Archive/sd2.html获取。

SD2格式存储离散深度层采集的物理化学海洋学数据。绝大多数观测采用多瓶Nansen采水器或其他类型水样采集装置完成，仅约5%的观测数据由电子电导率-温度-深度仪（Conductivity-Temperature-Depth, CTD）或盐度-温度-深度仪（Salinity-Temperature-Depth, STD）获取。但CTD/STD数据均按照与Nansen采水器观测一致的深度层级上报至NODC，并与Nansen采水器数据采用相同流程处理与存储。每个观测站均附带航行相关信息（如作业船舶、所属国家/科研机构）、站位坐标、观测日期与时间等元数据。核心观测参数为温度与盐度，此外还可记录溶解氧、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、风向风速、浪况）亦可被记录，同时附带辅助观测数据，例如水体颜色（福尔-尤勒色级，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）及海底水深。密度（sigma-t）、声速及动力深度异常等指标可通过实测参数计算得到。每个观测站既包含实测深度层的原始观测数据，同时也附带经插值得到的标准深度层数据集。