Drifting buoy and other data from the Gulf of Alaska as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP) from 21 October 1976 to 11 November 1976 (NODC Accession 7700740)

Drifting buoy data was collected from the Gulf of Alaska by the Atlantic Oceanographic and Meteorological Laboratory (AOML) as part of the Outer Continental Shelf Environmental Assessment Program (OCSEAP). Data were collected from 21 October 1976 to 11 November 1976. Data were processed by NODC to the NODC standard F156 Drifting Buoy Data format. Full format description is available from NODC at www.nodc.noaa.gov/General/NODC-Archive/f156.html. An analog file for this accession is available from NODC user service.

The F156 format is used for time series data on ocean circulation determined by the tracking of drifting buoys, drogues, or other instrumented devices as they are carried with the flow. Movement is reported as point-to-point geographic locations determined by shore-based, surface ship, aircraft, or satellite observations. Data from both ocean currents and ice movement can be reported in this format over time periods ranging from minutes to months. Directions and speeds between individual observations may be computed from these data and presented in graphic or summary listing form to provide information on circulation patterns and mass transport in offshore and near- shore regions. Platform name (for platform acquiring data or deploying device), drogue characteristics, start and end positions and times, and observation frequency (if constant time interval) are reported for each series of observation. Other surface meteorological or oceanographic parameters (e.g., water temperature and salinity, air temperature and pressure, wind, waves) and subsurface data (depth, pressure, temperature) may also be reported. Text records may be used to report general comments or to describe individual drogue observations.

本数据集的漂流浮标数据由大西洋海洋与气象实验室（Atlantic Oceanographic and Meteorological Laboratory, AOML）作为外大陆架环境评估计划（Outer Continental Shelf Environmental Assessment Program, OCSEAP）的一部分，从阿拉斯加湾采集获取。数据采集时段为1976年10月21日至1976年11月11日。数据由国家海洋数据中心（National Oceanographic Data Center, NODC）按照NODC标准F156漂流浮标数据格式（F156 Drifting Buoy Data format）完成处理。完整格式说明可通过NODC官网的https://www.nodc.noaa.gov/General/NODC-Archive/f156.html查阅。本次归档的模拟文件可通过NODC用户服务获取。

F156格式用于存储通过追踪随海流运动的漂流浮标、曳航浮筒或其他搭载传感器的装置所得到的海洋环流时间序列数据。其运动状态以经岸基、水面船舶、航空器或卫星观测得到的逐点地理位置进行记录。该格式可覆盖数分钟至数月不等的时长范围，同时记录海流与海冰运动两类数据。可基于本数据集计算各观测点间的运动方向与速度，并以图表或汇总列表形式呈现，以此为近岸与远海区域的环流模式及物质输运研究提供支撑信息。每个观测序列需记录以下核心元数据：数据采集平台或装置部署平台的名称、曳航浮筒的参数特征、起止位置与时间，以及观测频次（若采用固定时间间隔）。此外，该格式还可收录其他海面气象或海洋参数（如海水温度与盐度、气温与气压、风速、海浪）以及水下数据（水深、压力、温度）。亦可通过文本记录项填写通用备注或单条曳航浮筒观测的详细说明。