Manly Hydraulics Laboratory - Byron Bay Offshore Wave Data Buoy (WAVEBYB)

This is a metadata record for the Byron Bay offshore wave data buoy (station code WAVEBYB) operated by Manly Hydraulics Laboratory (MHL), NSW Office of Environment and Heritage (OEH). The buoy is moored off Byron Bay at a water depth of approximately 65m.

This metadata record includes a down-loadable .pdf summary document which includes a map with numbered deployment locations and a listing of deployment number, location, water depth and deployment period.

Data from October 1976 to October 1999 was gathered by the Waverider system developed by the Dutch company, Datawell. The Waverider system uses an accelerometer mounted in a loose tethered buoy (0.7 or 0.9m in diameter) to measure the vertical accelerations of the buoy as it moves with the water surface. The accelerations are integrated twice within the buoy and the displacement signal so obtained is then transmitted to a shore station where it is processed to provide wave data statistics.

In October 1999 the station was upgraded with a Datawell Directional Waverider buoy. The Directional Waverider buoy utilises a heave-pitch-roll sensor, two fixed X and Y accelerometers and a three axis fluxgate compass to measure both vertical and horizontal motion. An on-board processor converts the buoy motion to three orthogonal (vertical, north-south, east-west) translation signals that are transmitted to the shore station. The directional spectrum is also routinely transmitted to the receiving station for further processing. This buoy also collects sea surface temperature (SST) data from thermistors that are mounted inside the hull of the buoys, at the base of the buoy about 0.5m below the water surface. The wave and SST data are stored on the receiving station PC before routine transfer to Manly Hydraulics Laboratory via email.

本数据集为新南威尔士州环境与遗产办公室（NSW Office of Environment and Heritage, OEH）下属曼利水力学实验室（Manly Hydraulics Laboratory, MHL）运营的拜伦湾近海波浪浮标（站代码WAVEBYB）的元数据（metadata）记录。该浮标锚泊于拜伦湾外海域，水深约65米。
本元数据记录包含可下载的PDF摘要文档，其中附带标注有序号的部署位置地图，以及部署编号、位置、水深与部署周期的列表。
1976年10月至1999年10月的观测数据由荷兰Datawell公司研发的Waverider系统采集。该系统通过安装于松散系泊浮标（直径0.7或0.9米）内的加速度计（accelerometer），采集浮标随水面运动产生的垂直加速度信号。浮标内部对加速度信号进行两次积分，得到位移信号后传输至岸基站点，经处理后生成波浪数据统计量。
1999年10月，该站点升级为Datawell定向Waverider浮标。此类浮标搭载垂荡-纵倾-横摇传感器（heave-pitch-roll sensor）、两台固定X/Y轴加速度计以及三轴磁通门罗盘（three axis fluxgate compass），可同步采集垂直与水平运动数据。板载处理器将浮标运动转换为三个正交方向（垂直、南北向、东西向）的位移信号，传输至岸基站点。定向频谱（directional spectrum）数据同样会常规传输至接收站以供后续处理。该浮标还通过安装于浮标船体内、距水面约0.5米基座处的热敏电阻（thermistor）采集海表温度（Sea Surface Temperature, SST）数据。波浪与海表温度数据先存储于接收站PC中，后续通过电子邮件常规传输至曼利水力学实验室。