Current and other data from meters attached to fixed platforms as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 16 September 1978 to 17 August 1979 (NODC Accession 8100550)
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资源简介:
Current and other data were collected from meters attached to fixed platforms by the University of Alaska - Fairbanks; Institute of Marine Science (UAK/IMS). Data were collected as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 16 September 1978 to 17 August 1979 . 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. An analog file for this accession is available from NODC user services.
The F015 format contains time series measurements of ocean currents. These data are obtained from current meter moorings and represent the 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 includes 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. 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.
本数据集的海流及其他相关数据,由阿拉斯加大学费尔班克斯分校海洋科学研究所(University of Alaska Fairbanks, Institute of Marine Science, UAK/IMS)通过安装在固定平台上的海流计采集获得。数据采集工作作为外大陆架环境评估计划(Outer Continental Shelf Environmental Assessment Program, OCSEAP)的一部分,于1978年9月16日至1979年8月17日期间完成。后续由美国国家海洋数据中心(National Oceanographic Data Center, NODC)按照NODC标准F015海流计分量格式完成数据处理。完整的格式说明可通过NODC官网https://www.nodc.noaa.gov/General/NODC-Archive/f015.html查阅。本数据集的模拟文件可通过NODC用户服务渠道获取。
F015格式存储的是海流的时序观测数据。此类数据源自海流计锚系观测,采用欧拉海流测量法:即传感器部署于固定点位,通过监测流经传感器的水流获取海流数据。每个测站均会记录站位坐标、海底水深、传感器布设深度以及海流计的相关参数。数据记录包含指定日期与时刻下的东西向(u)和南北向(v)海流矢量分量数值。海流方向定义为水流的流向,其中正东与正北为正方向。数据值可经过平均或滤波处理,通常以10至15分钟为间隔进行观测记录。数据中亦可同步记录水温、压强、电导率或盐度等参数。附带的文本记录可用于填写补充说明信息。
创建时间:
2016-03-24



