Marine bird sighting, marine toxic substance, and other data from the DISCOVERER and other platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 25 March 1976 to 02 May 1978 (NODC Accession 7900171)

Marine bird sighting, marine toxic substance, and other data were collected from the DISCOVERER and other platforms from 25 March 1976 to 02 May 1978. Data were collected by the University of Alaska; Institute of Marine Science (UAK/IMS) as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP). Data were processed by NODC to the standard NODC F034 Marine Bird Land and the F144 Marine Toxic Substances formats. 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.

1976年3月25日至1978年5月2日期间，研究人员从DISCOVERER等平台收集了海洋鸟类目击记录、海洋有毒物质及其他相关数据。该数据集由阿拉斯加大学海洋科学研究所（University of Alaska; Institute of Marine Science, UAK/IMS）作为外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program, OCSEAP）的一部分完成采集。数据由国家海洋数据中心（National Oceanographic Data Center, NODC）处理为标准的NODC F034《海洋鸟类陆上观测》及F144《海洋有毒物质》格式。完整的格式说明可通过NODC官网www.nodc.noaa.gov/General/NODC-Archive/f144.html查阅。本归档数据集的模拟文件可通过NODC用户服务渠道获取。

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。此类数据源自对海水、沉积物或海洋生物样本的实验室分析。样本采集场景可涵盖海洋排污口附近区域，或是大范围海洋监测调查作业中。此外，海滩焦油沉积的野外观测记录也可纳入该数据集。调查信息包含作业平台类型、起止日期、调查人员及所属机构。若数据采集于排污口附近，则需记录排污位置、水深、离岸距离、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、潮汐潮位与高度、温跃层或混合层深度、海表温度及盐度，以及浪高与周期。针对每一份采集并分析的样本，需记录其样本特征、采集方法及实验室处理技术。数据记录包含每种被分析化学物质的浓度值（或用于标示痕量含量的代码）。化学物质通过美国化学学会化学文摘社（Chemical Abstracts Service, CAS）分配的登记号进行编码识别。采集样本所用的海洋生物则采用12位NODC分类编码进行标识。此外，数据集还提供文本记录字段，用于填写可选备注信息。