Oceanographic station, meteorological and other data from bottle casts from the MURRE II as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project from 12 September 1972 to 16 November 1972 (NODC Accession 7300554)

Oceanographic station, meteorological, and other data were collected from bottle casts from the MURRE II from 12 September 1972 to 16 November 1972. Data were collected by the National Marine Fisheries Service (NMFS) as part of the Marine Resources Monitoring, Assessment and Prediction (MARMAP) project. Data were processed by NODC to the NODC standard Oceanographic Station Data (SD2) format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/sd2.html

The Oceanographic Station Data 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.

1972年9月12日至11月16日期间，通过MURRE II号科考船的采水器（bottle casts）获取了海洋站观测、气象及其他相关数据。该数据由美国国家海洋渔业局（National Marine Fisheries Service, NMFS）作为海洋资源监测、评估与预测（Marine Resources Monitoring, Assessment and Prediction, MARMAP）项目的一部分采集完成。数据已由美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC标准海洋站数据（Oceanographic Station Data, SD2）格式。完整的格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/sd2.html获取。

海洋站数据格式包含离散深度层上记录的物理化学海洋学数据。绝大多数观测采用多瓶采水式南森采水器（multi-bottle Nansen casts）或其他类型的水体采样器完成，仅约5%的数据通过电子温盐深电导率仪（Conductivity-Temperature-Depth, CTD）或盐温深仪（Salinity-Temperature-Depth, STD）记录仪获取。不过，CTD/STD数据均按照与南森采水数据一致的深度层级上报至NODC，其处理与存储流程与南森采水数据完全一致。每个海洋站均附带航次信息（如科考船、所属国家及依托机构）、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值等指标。采样时的气象条件（如气温、气压、风速、浪况）也可被记录，同时还可附带水体颜色（福勒-于勒色标，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）及海底深度等辅助数据。密度（sigma-t）、声速及动力深度异常值可通过实测参数计算得到。每个海洋站既包含观测深度层上的实测数据，也包含经插值得到的标准深度层数据。