IMOS - Deep Water Moorings - Deep Water Arrays (DA) Sub-facility, East Australian deep water array, East Australian Current 4 Mooring (EAC4) Platform

EAC4型深水系泊设备于2012年4月部署在澳大利亚布里斯班附近昆士兰海岸(-27.21S，东经154.65度)。2013年8月收回了系泊设备，阵列退役，2015年5月重新部署了一个新配置的阵列(配备了新的系泊设备)，随后于2022年7月退役。<br/> <br/> 系泊设备包括75 kHz声学多普勒海流剖面仪(Long Ranger ADCPs)、Seabird SBE37SMPS、温度记录仪(Star oddi、Starmon Mini)和离散海流计(Aquadop6000)。<br/> <br/> 系泊设备将收集水流速度的全深度剖面以及离散的温度和盐度测量的时间序列。<br/> <br/> 该阵列将包括9个海流计和财产系泊，从布里斯班附近的昆士兰海岸节点陆架系泊阵列向东延伸到深海。系泊将以500-600米的间隔穿过大陆斜坡，并在深海增加到800-1000米。<br/> <br/> 东澳大利亚流(EAC)是南太平洋的主要西边界流。它在全球热量从赤道到中高纬度的海洋重新分配中发挥着关键作用。EAC在布里斯班以北相对稳定，但随着洋流向南移动，每年都会有2-3个大漩涡被夹住。这些涡旋经常移动到大陆架上并靠近近岸，影响当地的环流格局。在突出的海岸地物，EAC远离海岸，推动上升流，从200米或更深的深度吸收营养丰富的水。

The EAC4 deep water mooring was deployed in April 2012 at (-27.21 S, 154.65 E) off the Queensland coast, near Brisbane, Australia. The mooring was recovered in August 2013 and the array decommissioned, and a newly configured array (with new moorings) was redeployed in May 2015, and then subsequently decommissioned in July 2022. <br /> <br /> Instrumentation on the mooring includes 75kHz Acoustic Doppler Current Profilers (Long Ranger ADCPs), Seabird SBE37SMPs, temperature loggers (Star Oddi, Starmon Mini) and discrete current meters (Aquadopp 6000).<br /> <br /> The mooring will collect a time series of full-depth profiles of water velocity and discrete temperature and salinity measurements. <br /> <br /> The array will consist of 9 current meter and property moorings extending eastward from the Queensland Coastal Node shelf mooring array near Brisbane to the deep ocean. The moorings will be at 500-600 m intervals across the Continental Slope and increasing to 800-1000 m in the deep ocean. <br /> <br /> The East Australian Current (EAC) is the major western boundary current of the south Pacific Ocean. It plays a critical role in the ocean re-distribution of global heat from the equator to the midand- high latitudes. The EAC is relatively stable north of Brisbane, but as the current moves south 2-3 large eddies are pinched off every year. These eddies frequently move onto the continental shelf and close inshore and influence the local circulation patterns. At prominent coastal features the EAC moves away from the coast, driving upwelling which draws nutrient-rich water from a depth of 200-m or more.