https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 On the little-known consequences of the 4 August 1972 ultra-fast coronal mass ejecta: Facts, commentary, and call to action https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35511 70,000cm⁻²·s⁻¹·sr⁻¹). Although the magnetic storm index, Dst, dipped to only -125nT, the magnetopause was observed within 5.2RE and the plasmapause within 2RE. Widespread electric- and communication-grid disturbances plagued North America late on 4 August. There was an additional effect, long buried in the Vietnam War archives that add credence to the severity of the storm impact: a nearly instantaneous, unintended detonation of dozens of sea mines south of Hai Phong, North Vietnam on 4 August 1972. The U.S. Navy attributed the dramatic event to magnetic perturbations of solar storms. Herein we discuss how such a finding is broadly consistent with terrestrial effects and technological impacts of the 4 August 1972 event and the propagation of major eruptive activity from the Sun to the Earth. We also provide insight into the solar, geophysical, and military circumstances of this extraordinary situation. In our view this storm deserves a scientific revisit as a grand challenge for the space weather community, as it provides space-age terrestrial observations of what was likely a Carrington-class storm.]]> Wed 21 Aug 2019 12:29:42 AEST ]]> Geomagnetically induced currents in the New Zealand power network https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13517 Wed 11 Apr 2018 14:05:16 AEST ]]> Observations of geomagnetically induced currents in the Australian power network https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14007 Wed 11 Apr 2018 10:54:18 AEST ]]> Modeling geomagnetically induced currents in Australian power networks using different conductivity models https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35804 Tue 03 Dec 2019 16:33:12 AEDT ]]>