IMOS - Deep Water Moorings - Deep Water Arrays (DA) Sub-facility

深水阵列(DA)分设施的目标是观测深海洋流以及监测和了解海洋对气候和气候变异性的作用所需的性质。这些阵列监测澳大利亚周围海洋的海洋环流和性质变异性，并估计海洋对区域和全球环流、热量和淡水含量及变化的贡献。它们将有助于改进对区域和全球海平面预算的估计，通过与观测数据的直接比较改进气候模型模拟，同化和发展改进的模式物理和参数化。<br/> <br/> 这一分设施包括基于系泊的电导率-温度-深度传感器和深水海流计阵列的观测方案，这些方案专门针对监测南极底水的形成、盆地间交换和主要边界流。<br/> <br/> 深水阵列点包括：<br/> <br/> 1)阿德利陆地海岸深陆架，观测新形成的南极底水--波尼亚阵列的外流。最初，该阵列部署在默茨冰川附近，然后重新部署在托滕冰川附近(阵列于2015年停止)。<br/> <br/> 2)东帝汶航道和奥比亚海峡，以监测跨流域印度洋-太平洋交换和全球翻转环流的上肢--印度尼西亚Throughflow(ITF)阵列(该阵列于2015年停止)。<br/> <br/> 3)在布里斯班附近的澳大利亚东海岸监测东澳大利亚海流输送--EAC阵列(阵列于2022年停止使用)。

The Deep Water Arrays (DA) sub-facility targets observations of deep ocean currents and properties needed to monitor and understand the role of the ocean on climate and climate variability. The arrays monitor ocean circulation and property variability in the ocean surrounding Australia and provide estimates of the ocean contribution to the regional and global circulation, heat and freshwater content and change. They will contribute to improved estimates of the regional and global sea level budget, improvements to the climate model simulations via direct comparison with observations, assimilation and development of improved model physics and parameterisations.<br /> <br /> This sub-facility includes observational programs based on moored conductivity-temperature-depth sensors and current meter arrays in deep waters that are specifically targeted to monitor formation of Antarctic Bottom Water, interbasin exchange and major boundary currents. <br /> <br /> The Deep Water array sites include :<br /> <br /> 1) The Adelie Land Coast deep shelf to observe outflows of newly forming Antarctic Bottom water – the Polynya array. Initially the array was deployed near the Mertz glacier, then redeployed near the Totten Glacier (array ceased in 2015). <br /> <br /> 2) Timor Passage and Ombia Strait, to monitor the interbasin Indian-Pacific Ocean exchange and the upper limb of the global overturning circulation – the Indonesian Throughflow (ITF) array (array ceased in 2015).<br /> <br /> 3) The east coast of Australia, near Brisbane, to monitor the East Australian Current transport – the EAC array (array cease in 2022).