Current meter - direction and other data from the PIERCE in support of the Outer Continental Shelf - South Atlantic project from 23 October 1974 to 09 November 1974 (NODC Accession 7800778)

Current meter - direction and other data were collected from the PIERCE from 23 October 1974 to 09 November 1974. Data were collected by Atlantic Oceanographic and the Meteorological Laboratory (AOML) in support of the Outer Continental Shelf - South Atlantic project. Data were processed by NODC to the NODC standard F005 - Current Meter Data (Resultants) format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f005.html. The F005 format is used for time series measurements of ocean currents obtained using moored current-measuring instruments, principally Aanderaa current meters (manufactured by Aanderaa Instruments Inc.). These data represent the Eulerian method of current measurement, i.e., the meters are deployed at a fixed mooring point and measure flow past the sensor. Position, water depth, and sensor depth are reported for each station. The data record comprises values of current direction and speed at specified date and time. Data values may be subject to averaging or filtering and are typically reported at 10-15 minute time intervals. Other environmental parameters may also be reported. These include: water temperature, salinity, conductivity, and transmissivity; wind direction and speed; and dominant wave direction, height, and period. A text field is available for optional comments.1974年10月23日至1974年11月9日期间，从"PIERCE"平台采集了海流计（Current Meter）的流向及其他相关数据。此类数据由大西洋海洋与气象实验室（Atlantic Oceanographic and Meteorological Laboratory，简称AOML）为配合"南大西洋外大陆架"项目采集。国家海洋数据中心（National Oceanographic Data Center，简称NODC）将数据处理为NODC标准F005——海流计数据（合成值）格式。完整的格式说明可通过NODC官网https://www.nodc.noaa.gov/General/NODC-Archive/f005.html查阅。 F005格式用于记录通过锚定海流测量仪器获取的海流时间序列数据，此类仪器以安德里德海流计（Aanderaa current meters）为主，由安德里德仪器公司（Aanderaa Instruments Inc.）生产。此类数据采用欧拉海流测量法获取，即海流计被部署于固定锚泊点位，测量流经传感器的流体流速与流向。每个测站均会记录站位位置、水深及传感器埋设深度。数据记录包含指定日期与时刻下的海流流向与流速数值。数据值可经过平均处理或滤波处理，通常以10至15分钟为间隔进行记录。数据中亦可包含其他环境参数，具体包括：水温、盐度、电导率与透射率；风向与风速；以及主浪方向、浪高与浪周期。数据预留了文本字段，用于填写可选备注信息。