Oceanographic Station and CTD data from the EASTWARD from the SE Pacific (limit-140 W) as part of the International Decade of Ocean Exploration / Coastal Upwelling Ecosystems Analysis (IDOE/CUEA) from 23 July 1976 to 16 August 1976 (NODC Accession 7800803)

Oceanographic Station and CTD data were collected from the EASTWARD from the SE Pacific (limit-140 W) from 23 July 1976 to 16 August 1976. Data were collected by Oregon State University (OSU) as part of the International Decade of Ocean Exploration / Coastal Upwelling Ecosystems Analysis (IDOE/CUEA). Data were processed by NODC to the NODC standard Oceanographic Station Data and the F022 High-Resolution CTD/STD Output formats. Full format descriptions are available at nodc.noaa.gov/. Analog data are availabe for this accession by contacting NODC user services. 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 are 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. The F022 format contains high-resolution data collected using CTD (conductivity-temperature-depth) and STD (salinity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity, and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t), and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. A text record is available for comments.本数据集包含的海洋站数据与CTD（conductivity-temperature-depth，电导率-温度-深度剖面仪）数据，采集于1976年7月23日至8月16日，覆盖东南太平洋海域（以西经140°为边界）的东向观测航次。数据由俄勒冈州立大学（Oregon State University, OSU）采集，作为国际海洋勘探十年计划/沿岸上升流生态系统分析（International Decade of Ocean Exploration / Coastal Upwelling Ecosystems Analysis, IDOE/CUEA）的组成部分。美国国家海洋数据中心（National Oceanographic Data Center, NODC）已将数据按照NODC标准海洋站数据格式与F022高分辨率CTD/STD输出格式完成标准化处理。完整的格式说明可访问nodc.noaa.gov查阅。本数据集的模拟数据可通过联系NODC用户服务中心获取。 海洋站数据格式存储的是离散深度层记录的物理化学海洋学数据。多数观测采用多瓶南森采水器或其他类型的水体采样器完成，仅约5%的观测数据使用电子CTD（conductivity-temperature-depth，电导率-温度-深度剖面仪）或STD（salinity-temperature-depth，盐度-温度-深度剖面仪）记录仪获取。不过，提交至NODC的CTD/STD数据均匹配南森采水观测的深度层级，且处理与存储方式与南森采水数据完全一致。每个测站均记录有航次信息（如船舶、所属国家、依托机构）、位置、日期与时间。核心观测参数为温度与盐度，同时可记录溶解氧、磷酸盐、总磷、硅酸盐、硝酸盐、亚硝酸盐以及pH值等指标。观测时的气象条件（如气温、气压、风向风速、海浪状况）亦可被记录，此外还包含辅助观测数据，如水色（福勒-于勒色级，Forel-Ule scale）、水体透明度（塞氏盘深度，Secchi disk depth）以及海底深度。密度（sigma-t）、声速与动力深度距平值可通过实测参数计算得到。每个测站既包含实测深度层的原始观测数据，同时也包含插值至标准深度层的数据集。 F022格式存储的是使用CTD（conductivity-temperature-depth，电导率-温度-深度剖面仪）与STD（salinity-temperature-depth，盐度-温度-深度剖面仪）采集的高分辨率数据。这类电子设备在水下升降过程中，可获取温度、盐度及其他参数的准连续剖面数据。数据值可经过平均、滤波处理或通过插值得到，且可按照精细至1米的深度间隔进行记录。每个测站均记录有航次与仪器信息、位置、日期、时间以及采样间隔。观测时的环境数据（气象与海表状态）亦可被记录。数据记录包含指定深度或压力层的温度、盐度（或电导率）、密度（计算得到的sigma-t）值，以及可选的溶解氧或透射率数据。数据可按照等间距或不等间距的深度/压力间隔进行记录。数据中包含可供添加注释的文本记录字段。