IMOS - Ocean Radar - Bonney Coast HF ocean radar site (South Australia, Australia) - Real-time sea water velocity

The Bonney Coast (BONC) HF ocean radar system covers an area of the Bonney Coast, South Australia, which has a recurring annual upwelling feature near to the coast that significantly changes the ecosystem from one of warm water originating in Western Australia, to one dominated by cold upwelling water from off the continental shelf. The dynamics of this area and the relationship between ocean circulation, chemistry and sediments control the larval species and the higher marine species and ecosystems in which they forage. The data from this site provide linking observations between the Southern Ocean and NSW through processes that occur on weekly to El Nino time scales. The BONC HF ocean radar system consists of two SeaSonde crossed loop direction finding stations located at Nora Creina (37.329 S 139.850 E) and Blackfellows Cave (37.940 S 140.457 E). These radars operate at a frequency of 5.211 MHz, with a bandwidth of 50 KHz, a maximum range of 200 Kmand a range resolution of 3 Km. Within the HF radar coverage area surface currents are measured.This site was decommissioned in March 2017.

邦尼海岸（Bonney Coast, BONC）高频（High Frequency, HF）海洋雷达系统覆盖澳大利亚南部邦尼海岸周边海域。该海域近岸区域存在周期性年度上升流现象，这一现象使沿岸生态系统发生显著转变：原本以源自西澳大利亚的暖水环境为主的生态系统，逐渐被源自大陆架外的寒冷上升流水体所主导的生态系统取代。该区域的动力过程，以及海洋环流、海水化学与沉积物之间的相互作用，调控着幼体物种，以及幼体所觅食的海洋高等物种及其赖以生存的生态系统。该站点获取的数据可通过周尺度至厄尔尼诺（El Niño）时间尺度的动力过程，搭建起南大洋与新南威尔士州（New South Wales, NSW）之间的观测联系。BONC高频海洋雷达系统包含两座SeaSonde交叉环测向站，分别设于诺拉克赖纳（Nora Creina，南纬37.329°，东经139.850°）与布莱克费洛洞穴（Blackfellows Cave，南纬37.940°，东经140.457°）。这些雷达的工作频率为5.211 MHz，带宽50 kHz，最大探测距离200 km，距离分辨率为3 km。在该高频雷达的覆盖范围内，可获取表层海流观测数据。该站点已于2017年3月退役。