Physical, meteorological, and other data from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska from the MILLER FREEMAN as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 29 March 1977 to 02 April 1977 (NODC Accession 7700681)
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Physical, meteorological, and other data were collected from surface sensors, bottle casts, and CTD casts in the Gulf of Alaska from the MILLER FREEMAN. Data were collected by the University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS) as part of Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 29 March 1977 to 02 April 1977. 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.
本数据集的观测数据采集自阿拉斯加湾海域,由搭载于MILLER FREEMAN号科考船的海面传感器、采水器采样与CTD剖面观测设备获取,涵盖物理、气象及其他相关海洋观测参数。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(UAK/IMS)作为外大陆架环境评估计划(Outer Continental Shelf Environmental Assessment Program, OCSEAP)的子项目,于1977年3月29日至1977年4月2日期间完成采集。后续由美国国家海洋数据中心(National Oceanographic Data Center, NODC)按照其制定的F022高分辨率CTD/STD输出标准格式完成数据标准化处理。该标准格式的完整说明文档可通过NODC官方网站获取:www.nodc.noaa.gov/General/NODC-Archive/f022.html。本入藏数据集对应的模拟数据文件可通过NODC用户服务渠道申领。 F022格式包含使用CTD(电导率-温度-深度仪,conductivity-temperature-depth)与STD(盐度-温度-深度仪,salinity-temperature-depth)仪器采集的高分辨率观测数据。此类电子设备在水下升降作业过程中,可连续获取温度、盐度及其他相关参数的剖面观测序列。数据值可通过平均、滤波处理或插值计算得到,也可按精度最高达1米的深度间隔进行上报。每个测站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。此外还可上报观测作业时刻的环境数据,包括气象与海面状况。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)值,以及可能附带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或压力间隔进行上报。此外还可提供附带注释的文本记录。



