Primary productivity, nutrients, and other data from bottle casts in the Bering Sea from a helicopter in support of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 31 March 1977 to 04 April 1977 (NODC Accession 7900024)

Primary productivity, nutrients, and other data were collected from bottle casts from a helicopter from 31 March 1977 to 04 April 1977. Data were collected by the University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS) in support 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. 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.1977年3月31日至1977年4月4日期间，研究人员通过直升机搭载采水瓶采样（bottle casts）的方式，收集了初级生产力（Primary Productivity）、营养盐（nutrients）及其他相关数据。该数据集由阿拉斯加大学费尔班克斯分校海洋科学研究所（University of Alaska-Fairbanks; Institute of Marine Science，UAK/IMS）为支撑外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program，OCSEAP）而采集。美国国家海洋数据中心（National Oceanographic Data Center，NODC）按照其制定的F029初级生产力标准格式（F029 Primary Productivity format）完成了数据处理工作。完整的格式说明可通过NODC官方网站www.nodc.noaa.gov/General/NODC-Archive/f029.html查阅获取。 F029格式用于存储初级生产力实测数据，其采集目的是为近海区域的营养盐水平及营养盐流动情况提供基础数据支撑。除航次信息、站位坐标、观测日期、观测时间、采样深度、海底深度及环境相关参数外，该数据集文件还可包含以下实测指标：磷酸盐、硝酸盐、硅酸盐、氨等营养盐浓度；温度与盐度；以及碳同化量（carbon assimilation）。其中，叶绿素a（chlorophyll A）、脱镁色素（phaeopigment）及碳同化量的测量值可按积分值（integrated values）形式上报。数据集附带自由文本记录，用于填写备注信息。