Current and other data from fixed platforms as part of the International Decade of Ocean Exploration / International Ocean Studies / First Dynamic Response and Kinematics Experiment in the Drake Passage (IDOE/ISOS/FDRAKE) from 1978-04-12 to 1980-05-01 (NODC Accession 9500018)

Current and other data were collected from fixed platforms from 12 April 1978 to 01 May 1980. Data were collected by Woods Hole Oceanographic Institute (WHOI) as part of the International Decade of Ocean Exploration / International Ocean Studies / First Dynamic Response and Kinematics Experiment in the Drake Passage (IDOE/ISOS/FDRAKE). Data were processed by NODC to the NODC standard F015 Current Meter Components format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f015.html.

The F015 format is used for time series measurements of ocean currents. These data are obtained from current meter moorings and represent Eulerian method of current measurement, i.e., the meters are deployed at a fixed point and measure flow past a sensor. Position, bottom depth, sensor depth, and meter characteristics are reported for each station. The data record comprises values of east-west (u) and north-south (v) current vector components at specified date and time. Current direction is defined as the direction toward which the water is flowing with positive directions east and north and negative directions west and south. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Water temperature, pressure, and conductivity or salinity may also be reported. A text record is available for optional comments.

1978年4月12日至1980年5月1日期间，研究团队从固定平台采集海流及相关观测数据。该数据集由伍兹霍尔海洋研究所（Woods Hole Oceanographic Institute, WHOI）作为国际海洋勘探十年计划（International Decade of Ocean Exploration, IDOE）/国际海洋研究（International Ocean Studies, ISOS）/德雷克海峡首次动力响应与运动学实验（First Dynamic Response and Kinematics Experiment in the Drake Passage, FDRAKE）的组成部分完成采集。数据后续由美国国家海洋数据中心（National Oceanographic Data Center, NODC）按照其F015海流计分量标准格式（F015 Current Meter Components format）进行标准化处理。完整的格式说明文档可通过NODC官方网址www.nodc.noaa.gov/General/NODC-Archive/f015.html获取。

F015格式专为海流时间序列测量场景设计。此类数据来源于海流计锚系（current meter moorings）观测，采用欧拉法（Eulerian method）进行海流测量，即传感器固定部署于固定测点，直接采集流经传感器的水流参数。每个测站均会记录其地理位置、海底水深、传感器布设深度以及海流计的设备特性参数。数据记录包含指定日期与时刻下的东西向（u）和南北向（v）海流矢量分量。海流方向定义为水流的流向，以正东、正北为正方向，正西、正南为负方向。原始数据通常经过平均或滤波处理，采样间隔一般为10至15分钟。数据集还可附带水温、压强、电导率或盐度（salinity）的观测数据，同时提供可选的文本注释记录字段。