The hydrodynamic regime at John Brewer Reef, Great Barrier Reef: Mooring CM6: Current Meter

An Aanderaa RCM current meter was attached to mooring CM6, which was deployed in 50m of water. Deployment Details:Date Deployed: 2/4/1987Date Recovered: 6/9/1987Instrument Deployed:RCM #6332; Depth: 25m 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. The locations for moorings CM6, CM7, CM8 and CM12 were chosen on the basis of results from a complementary project, where numerical models of hydrodynamics and dispersion were used to simulate the wind, tidal, long-period current and wave circulation around GBR reefs, for examination of dispersal of larvae of the crown-of-thorns starfish.

安德拉（Aanderaa）RCM型海流计被挂载于CM6锚系之上，该锚系布设于50米水深的海域。布放详情如下：布放日期：1987年4月2日；回收日期：1987年9月6日；布放仪器：RCM #6332；仪器布放深度：25米。本项目的研究目标为采集现场实测数据，以校准约翰·布鲁尔礁（John Brewer Reef）区域潮汐与风驱联合环流的数值模型，并基于该环流模式计算该礁域内长棘海星（crown-of-thorns starfish）的扩散轨迹、滞留时长以及暴发概率。CM6、CM7、CM8与CM12锚系的布设点位，依据一项配套研究的结果选定；该研究通过水动力与扩散数值模型，模拟了大堡礁（Great Barrier Reef, GBR）周边海域的风场、潮汐、长周期海流及波浪环流，用于分析长棘海星幼体的扩散过程。