IMOS - ANMN Western Australia (WA) Mooring Sub-Facility

The West Australian Mooring Sub-Facility is part of the Australian National Mooring Network. \n\nThe Western Australia moorings sub-facility is responsible for a collection of moorings designed to monitor variability in the Leeuwin Current and continental shelf currents both in terms of along-shore and cross-shore variability. Moorings in the region also monitor processes within the Perth Canyon. The time-series monitoring of physical and biological parameters provided by these moorings supplements past and current research activities in the region based at the CSIRO, the Department of Fisheries WA and Western Australian Universities. The sub-facility currently maintains six regional moorings (two recently decommissioned) and two National Reference Stations (one recently retrieved and not redeployed).\n \nThe regional moorings are located off Perth, clustered near the Perth Canyon and the Two Rocks Line. The Two Rocks Line contains four moorings which transect the continental shelf north of Perth from the 44m to the 500m isobath (the 50m mooring was decommissioned in May 2013, and the 150m mooring in October 2013). Around the Perth Canyon, there remains one shelf mooring in shallower water at the head of the canyon, formerly two slope moorings were located near the 500m isobath (decommissioned in July 2010 and March 2014), to monitor processes in and around the canyon. Primarily these moorings are thermistor strings allowing the structure of the Leeuwin Current to be determined. Two of the moorings also sample biogeochemical parameters.

西澳大利亚系泊子设施（West Australian Mooring Sub-Facility）是澳大利亚国家系泊网络（Australian National Mooring Network）的组成部分。

该西澳大利亚系泊子设施负责运维一套系泊观测阵列，用于监测卢因洋流（Leeuwin Current）与大陆架海流的沿岸及跨岸时空变异。该区域的系泊设备同时还会监测珀斯峡谷（Perth Canyon）内的海洋过程。这些系泊设备获取的物理与生物参数时间序列监测数据，可对该区域由澳大利亚联邦科学与工业研究组织（CSIRO）、西澳大利亚渔业部（Department of Fisheries WA）及西澳大利亚各高校开展的过往与当前研究工作形成补充。目前该子设施运维6套区域系泊设备（其中2套已近期退役）与2个国家参考站（其中1套已近期回收且未重新部署）。

区域系泊设备分布于珀斯近海，集群于珀斯峡谷与双岩测线（Two Rocks Line）附近。双岩测线区域设有4套系泊设备，横跨珀斯以北大陆架的44米至500米等深线（isobath），其中50米等深线对应的系泊设备于2013年5月退役，150米等深线对应的系泊设备于2013年10月退役。在珀斯峡谷周边，峡谷头部浅水区仍保留1套陆架系泊设备；原设有2套斜坡系泊设备位于500米等深线附近（分别于2010年7月与2014年3月退役），用于监测峡谷内部及周边的海洋过程。此类系泊设备主要配置热敏电阻串（thermistor strings），以解析卢因洋流的垂向结构。其中2套系泊设备还会采集生物地球化学参数。