SHARE-Southern Hemisphere Auroral Radar Experiment

这笔赠款为约翰·霍普金斯大学应用物理实验室(JHU/APL)、英国南极调查局(BAS)和南非国家南极计划之间合作的美国部分提供资金，以在新的南非站Sanae建造和运行超视距高频极光雷达。该项目被称为南半球极光雷达实验(SHARE)。SHARE与南极哈雷湾BAS站现有的极地英美共轭实验(PACE)雷达基本相同。当SHARE和PACE一起运行时，它们将在其非常大的重叠视野内提供等离子体流动的二维映射。幸运的是，它们重叠在美国南极站以及将由新的自动地球物理观测站(AGO)测量的大部分区域上方，因此可以提供有关观测站上方大规模等离子体流动的宝贵补充信息。这些雷达还将补充北半球的类似设施，并将有助于显示这些磁性连接地区的极光有时相同，有时不同。JHU/APL是超视距高频极光雷达的世界领先者。

This grant provides fund for the U.S. portion of a collaboration between Johns Hopkins University Applied Physics Laboratory (JHU/APL), British Antarctic Survey (BAS) and the South African National Antarctic Programme to build and operate an over-the- horizon high frequency (HF) auroral radar at the new South African station, Sanae. The project is known as the Southern Hemisphere Auroral Radar Experiment (SHARE). SHARE is essentially identical with the existing Polar Anglo-American Conjugate Experiment (PACE) radar at the BAS station at Halley Bay, Antarctica. When operated together, SHARE and PACE will provide 2-D mapping of plasma flow within their very large overlapping fields of view. Fortunately, they overlap above the U.S. South Pole station as well as much of the area to be instrumented with the new Automatic Geophysical Observatories (AGO's) and, therefore, can provide valuable additional information on the large-scale plasma flows above the observatories. These radars will also complement similar facilities in the Northern Hemisphere and will help to show how the aurora are sometimes the same and sometimes different in these magnetically connected regions. JHU/APL is the world leader in over-the-horizon HF auroral radar.