CTD data from CTD casts in the Northeast Pacific Ocean from NOAA Ship DISCOVERER and NOAA Ship SURVEYOR from 1985-06-03 to 1988-09-21 (NCEI Accession 8900194)

CTD data were collected from CTD casts from NOAA Ship DISCOVERER and NOAA Ship SURVEYOR in the Northeast Pacific Ocean from 03 June 1985 to 21 September 1988. Data were collected by the Pacific Marine Environmental Laboratory (PMEL) as part of the VENTS program. Data were processed by NODC to the NODC standard F022 High Resolution STD/CTD data format. Full format and format code descriptions are available at http://www.nodc.noaa.gov/General/NODC-datafmts.html.

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CTD（电导率-温度-深度，Conductivity-Temperature-Depth）数据采集于1985年6月3日至1988年9月21日期间，由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）的“发现者”号（DISCOVERER）与“勘探者”号（SURVEYOR）科考船在东北太平洋海域开展的CTD站次作业获取。数据由太平洋海洋环境实验室（Pacific Marine Environmental Laboratory, PMEL）作为VENTS计划的一部分采集完成，后由美国国家海洋数据中心（National Oceanographic Data Center, NODC）处理为NODC标准F022高分辨率STD/CTD数据格式。完整格式及格式代码说明可访问 http://www.nodc.noaa.gov/General/NODC-datafmts.html 查阅。
F022格式包含采用CTD及STD（盐度-温度-深度，Salinity-Temperature-Depth）仪器采集的高分辨率数据。当此类电子设备在大洋中布放并回收时，可获取温度、盐度及其他参数的近乎连续剖面数据。数据值可经过平均、滤波处理，或通过插值得到，也可按精度高达1米的深度间隔进行记录上报。每个测站均会记录航次与仪器信息、站位坐标、日期、时间及采样间隔。测站作业时的环境数据（气象与海表状态）也可一并上报。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sigma-t）数据，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或压力间隔进行上报。同时提供文本记录用于备注说明。