Drifting buoy data from buoy casts in a world wide distribution as part of the Tropical Ocean Global Atmosphere (TOGA) from 1989-07-01 to 1989-07-31 (NODC Accession 8900227)

Drifting buoy data were collected using buoy casts in a world wide distribution from July 1, 1989, to July 31, 1989. Data were submitted by National Data Buoy Center (NDBC) as part of the Tropical Ocean Global Atmosphere (TOGA) project. Data were processed by NODC to the NODC standard Drifting Buoy (F156) format. Full drifting buoy descriptions are available at http://www.nodc.noaa.gov/General/NODC-Archive/f156.html.

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.

本数据集采集了1989年7月1日至1989年7月31日期间全球分布的漂流浮标观测数据，数据采集通过浮标布放作业完成。相关数据由国家数据浮标中心（National Data Buoy Center, NDBC）提交，作为热带海洋全球大气（Tropical Ocean Global Atmosphere, TOGA）项目的组成部分。国家海洋数据中心（National Oceanographic Data Center, NODC）已将原始数据处理为NODC标准漂流浮标（F156）格式。完整的漂流浮标数据说明可访问网址：http://www.nodc.noaa.gov/General/NODC-Archive/f156.html。

F156格式用于存储通过追踪漂流浮标、浮标锚碇装置或其他搭载仪器的设备随流运动所获取的海洋环流时间序列数据。浮标运动以逐点地理坐标的形式记录，这些坐标通过岸基观测、水面船舶、航空器或卫星观测获取。该格式可覆盖数分钟至数月的时长范围，用于记录洋流与海冰运动的相关数据。可基于相邻观测点的原始数据计算得到运动方向与速度，并以图表或汇总列表的形式呈现，为近岸及远海区域的环流模式与物质输运研究提供支撑信息。每套观测序列均需记录以下核心元数据：数据采集平台或设备部署平台的名称、浮标锚碇装置参数、起始与终止位置及时间，以及观测频率（若为固定时间间隔）。此外，该格式还可收录其他表层气象或海洋学参数（如海水温度与盐度、气温与气压、风速、海浪等）以及次表层探测数据（如深度、压强、温度等）。文本记录字段可用于补充说明观测概况或描述单条浮标锚碇装置的观测细节。