Primary productivity, nutrients, and other data from bottle casts from the DISCOVERER as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 21 October 1975 to 10 November 1975 (NODC Accession 7600841)

Primary productivity, nutrients, and other data were collected from bottle casts from the DISCOVERER from 21 October 1975 to 10 November 1975. Data were collected by the Pacific Marine Environmental Laboratory (PMEL) as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP). Data were processed by NODC to the NODC standard F029 Primary Productivity format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f029.html. An analog file for this accession is available from NODC user services.

The F029 format contains data from measurements of primary productivity. The data are collected to provide information on nutrient levels and nutrient flow in offshore areas. In addition to cruise information, position, date, time, sampling depths, bottom depth, and environmental information, this file may contain measured parameters including: concentrations of nutrients such as phosphate, nitrate, silicate, and ammonia; temperature and salinity; and carbon assimilation. Measurements of chlorophyll A, phaeopigment, and carbon assimilation may be reported as integrated values. A free-text record is available for comments.

1975年10月21日至11月10日期间，研究人员依托“发现号”（DISCOVERER）调查船开展瓶式采水作业，收集了初级生产力（Primary Productivity）、营养盐及其他相关观测数据。本数据集由太平洋海洋环境实验室（Pacific Marine Environmental Laboratory, PMEL）作为外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program, OCSEAP）的组成部分完成采集。数据经国家海洋数据中心（National Oceanographic Data Center, NODC）处理，采用NODC标准F029初级生产力格式进行标准化存储。完整的格式说明文档可通过NODC官方网站www.nodc.noaa.gov/General/NODC-Archive/f029.html获取，本次入库数据集的模拟文件可通过NODC用户服务渠道申领。

F029格式专为存储初级生产力实测数据而设计，其采集目标为近海区域的营养盐水平及营养盐循环研究提供基础观测信息。该数据文件除包含航次详情、站位坐标、观测日期、观测时间、采样深度、海底深度及环境背景信息外，还可涵盖以下实测参数：磷酸盐、硝酸盐、硅酸盐、氨等营养盐浓度，海水温度与盐度，以及碳同化量。叶绿素a、脱镁色素及碳同化量的观测结果可上报为积分累积值。文件附带自由文本记录字段，用于添加补充备注信息。