Physical, meteorological, and other data from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska from the ALPHA HELIX and other platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 04 May 1980 to 15 May 1983 (NODC Accession 8300155)

Physical, meteorological, and other data were collected from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska from the ALPHA HELIX and other platforms. Data were collected by the University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS) and the University of Washington (UW) as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 04 May 1980 to 15 May 1983. Data were processed by NODC to the NODC standard F022 High-Resolution CTD/STD Output Format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f022.html. An analog file for this accession is available from NODC user services.

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.

本数据集的物理、气象及其他相关数据采集自阿拉斯加湾海域内的海面传感器、采水器剖面站位与CTD（conductivity-temperature-depth，电导率-温度-深度）剖面站位，搭载平台包括ALPHA HELIX号及其他作业平台。本次数据采集工作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）与华盛顿大学（University of Washington, UW）完成，作为外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program, OCSEAP）的组成部分，数据采集周期为1980年5月4日至1983年5月15日。数据经美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理，采用NODC标准F022高分辨率CTD/STD输出格式。完整格式说明可通过NODC官方网址www.nodc.noaa.gov/General/NODC-Archive/f022.html查阅。本存档数据集的模拟文件可通过NODC用户服务渠道获取。
F022格式存储了采用CTD（电导率-温度-深度）与STD（salinity-temperature-depth，盐度-温度-深度）仪器采集的高分辨率海洋数据。此类电子设备在海洋中下放与回收的过程中，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，或通过插值方式生成，其上报的深度间隔最小可达1米。每个调查站位均会记录航次与仪器信息、站位坐标、观测日期、时间及采样间隔。调查站位投放时的环境数据（气象与海面状况）亦可同步记录。数据记录包含指定深度或压力层级下的温度、盐度（或电导率）、密度（计算得到的密度距平σ-t），以及可能存在的溶解氧或透射率数据。数据可按等间距或不等间距的深度/压力间隔进行上报。此外还提供文本记录用于填写相关注释。