Current meter data from moored current meter casts in the North Atlantic Ocean as part of the Outer Continental Shelf - South Atlantic (OCS -South Atlantic) project from 21 March 1979 - 27 May 1979 (NODC Accession 8000014)

Current meter data were collected using moored current meter casts in the North Atlantic Ocean from March 21, 1979 to May 27, 1979. Data were submitted by Science Applications, INC. - Raleigh NC as part of the Outer Continental Shelf - South Atlantic (OCS-South Atlantic) project. Data were processed by NODC to the NODC standard Current Meter Data (F015) format. Full current meter moorings descriptions are available at http://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.

本数据集的海流计（current meter）观测数据，于1979年3月21日至5月27日期间，通过布放于北大西洋海域的锚泊海流计（moored current meter）获取。数据由北卡罗来纳州罗利市的科学应用公司（Science Applications, INC.）提交，作为外大陆架-南大西洋（Outer Continental Shelf - South Atlantic，缩写OCS-South Atlantic）项目的组成部分。该数据已由美国国家海洋数据中心（National Oceanographic Data Center，NODC）处理为NODC标准海流计数据（F015）格式。完整的锚泊海流计布放方案说明可通过以下网址查阅：http://www.nodc.noaa.gov/General/NODC-Archive/f015.html。

F015格式专用于海流时间序列观测数据的存储。此类数据源自锚泊海流计布放站点，采用欧拉法（Eulerian method）开展海流测量：即将海流计布设于固定点位，监测流经传感器的水流运动。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参数特征。数据记录包含指定日期与时刻下的东西向（u）与南北向（v）海流矢量分量。海流流向定义为水流的运动方向，正东与正北为正方向，正西与正南为负方向。观测数据通常经过平均或滤波处理，采样时间间隔一般为10至15分钟。数据中还可包含水温、压强以及电导率或盐度参数，同时附带可选的文本注释记录。