The hydrodynamic regime at John Brewer Reef, Great Barrier Reef: Mooring TG1: Tide Gauge

An Aanderaa water level recorder was attached to mooring TG1, located north east of John Brewer Reef and in the free stream. Deployment Details:Date Deployed: 2/4/1987Date Recovered: 6/9/1987Instrument Deployed:Aanderaa WLR #W488Depth: 50m The aim of this project was to collect field data to calibrate a numerical model for the combined tidal and wind-forced circulation at John Brewer Reef, and to apply those circulation patterns to calculate the trajectories, residence times and likelihood of outbreaks of crown-of-thorns starfish on areas of the reef. Tide gauges were placed at the corners of the model (moorings CM1, CM2, CM4 and TG1) and in the centre of the model, close to John Brewer Reef (TG2). The mooring CM1 drifted from its original position and only data up to the 27/5/87 are considered reliable. Mooring CM4 drifted to the Whitsunday Islands and the data were not considered reliable.

一台Aanderaa水位记录仪（water level recorder）被安装于锚系浮标（mooring）TG1，该浮标位于约翰·布鲁尔礁（John Brewer Reef）东北方向的自由流海域。
部署详情如下：部署日期：1987年4月2日；回收日期：1987年9月6日；部署仪器：Aanderaa WLR #W488；部署深度：50米。
本项目旨在采集现场实测数据，以校准约翰·布鲁尔礁区域潮汐与风力驱动联合环流的数值模型，并基于该环流模式计算该礁区长棘海星（crown-of-thorns starfish）的移动轨迹、滞留时间及暴发概率。
潮位计被布设至模型区域的四角（锚系浮标CM1、CM2、CM4与TG1）以及模型中心靠近约翰·布鲁尔礁的位置（TG2）。
锚系浮标CM1偏离初始布设位置，仅1987年5月27日之前的采集数据被认定为可靠。
锚系浮标CM4漂移至圣灵群岛（Whitsunday Islands），其采集数据均被认定为不可靠。