Marine Toxic Substance and other data from bottle casts in the Gulf of Alaska from the NOAA Ship DISCOVERER as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 05 April 1977 to 22 April 1977 (NODC Accession 7700755)

Marine Toxic Substance and other data were collected from bottle casts in the Gulf of Alaska from the NOAA Ship DISCOVERER. Data were collected by Pacific Marine Environmental Laboratory (PMEL) as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 05 April 1977 to 22 April 1977. Data were processed by NODC to the NODC Marine Toxic Substances format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f144.html. An analog file for this accession is available from NODC user services. The F144 format contains data on ambient concentrations of toxic substances and other pollutants in the marine environment. The data derive from laboratory analyses of samples of water, sediment, or marine organisms. Samples may have been collected near marine discharge sites or during ocean monitoring surveys of large areas. Field observations of tar deposits on beaches may also be reported. Survey information includes platform type, start and end dates, and investigator and institution. If data are collected near a discharge site, discharge location, depth, distance to shore, average volume, and other characteristics are reported. Position, date, time and environmental conditions are reported for each sample station. Environmental data may include meteorological and sea surface conditions, tide stage and height, depth of the thermocline or mixed layer surface temperature and salinity, and wave height and periods. Sample characteristics, collection methods, and laboratory techniques are reported for each sample collected and analyzed. The data record comprises concentration values (or a code to indicate trace amounts) for each chemical substance analyzed. Chemical substances are identified by codes based on the registry numbers assigned by the Chemical Abstracts Service (CAS) of the American Chemical Society. Marine organisms from which samples have been taken are identified using the 12-digit NODC Taxonomic Code. A text record is available for optional comments.本数据集涵盖海洋有毒物质及其他相关数据，数据由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）‘发现者’号科考船在阿拉斯加湾通过采水器采样获取。数据由太平洋海洋环境实验室（Pacific Marine Environmental Laboratory, PMEL）于1977年4月5日至4月22日期间采集，作为外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program, OCSEAP）的一部分。数据经美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC海洋有毒物质数据格式。完整格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/f144.html获取。本次入藏数据集的模拟数据文件可通过NODC用户服务部门获取。 F144格式包含海洋环境中有毒物质及其他污染物的环境浓度数据。此类数据源自水体、沉积物或海洋生物样本的实验室分析结果。样本可采集自海洋排污口附近区域，或是大范围海洋监测调查期间的站位。此外，本数据集亦可包含海滩沥青沉积物的野外观测记录。调查信息涵盖调查平台类型、调查起止日期、调查人员及所属机构。若数据采集自排污口附近，则需记录排污口位置、水深、距岸距离、平均排放量及其他相关特征。每个采样站位均需记录其位置、日期、时间及环境条件。环境数据可包括气象与海表状况、潮汐潮位与潮高、温跃层或混合层深度、海表温度与盐度，以及浪高与浪周期。每份采集并分析的样本均需记录其特征、采样方法及实验室分析技术。数据记录包含每种被测化学物质的浓度值（或用于标识痕量含量的代码）。化学物质通过美国化学会化学文摘社（Chemical Abstracts Service, CAS）分配的登记号对应的代码进行标识。采集样本的海洋生物采用12位NODC分类编码进行标识。数据集附带可供填写可选备注的文本记录。