Oceanographic station data from bottle casts from the BARATARIA from Ocean Weather Station N (OWS-N) in the North Pacific Ocean 05 May 1969 to 28 May 1969 (NODC Accession 6900754)

Oceanographic station data were collected from the BARATARIA within a 1-mile radius of Ocean Weather Station N (3000N 14000W) and in transit. Data were collected by the United States Coast Guard (USCG) from 05 May 1969 to 28 May 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.本数据集为巴拉塔里亚号（BARATARIA）在海洋气象站N（30°00′N，140°00′W）周边1英里半径范围内及航行途中采集的海洋站观测数据。数据由美国海岸警卫队（United States Coast Guard, USCG）于1969年5月5日至1969年5月28日期间采集，后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）。完整格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/sd2.html获取。 SD2格式包含离散深度层记录的物理化学海洋学数据。多数观测通过多瓶式南森采水站位或其他类型的水样采集装置完成，仅约5%的观测数据来自电子电导率-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。需注意，CTD/STD数据上报至NODC时采用与南森采水数据一致的深度层级划分，因此其处理与存储流程与南森采水数据完全相同。每个测站均记录有航次信息（如船舶、所属国家/机构）、站位坐标、观测日期与时间。核心观测参数为温度与盐度，但同时也可能记录溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐及pH值。采水作业时的气象条件（如气温、气压、风向风速、浪况）也可能被记录，此外还包括辅助观测数据，例如水色（弗洛尔-乌勒色标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）及海底水深。密度（σ_t）、声速及动态深度异常值均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，也包含插值至标准深度层级的数据集。