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- W4297839973 abstract "In situ spacecraft observations of STEVE (Strong Thermal Emission Velocity Enhancement) have confirmed that the phenomena are an intense SAID (SubAuroral Ion Drift). These observations tell us that STEVE is typically an extremely narrow channel (of the order of 20 km) of zonal ion flows (of the order of 5 km/s) that is collocated with a minimum in the sub-auroral trough meridional plasma density profile and extremely enhanced electron temperatures (of the order of 7000 K). Statistics derived from all sky imager data of STEVE shows that it typically occurs approximately one hour after substorm onset and has a lifetime of the order of one hour. The mechanism that produces STEVE's famous mauve optical emission which has captivated the citizen science community and – more recently – the “traditional” science community remains elusive along with the evolution of the phenomena from start to finish. Super Dual Auroral Radar Network (SuperDARN) High Frequency (HF) radars have been used for several years to study SAID and may provide a way of studying the evolution of STEVE events, including when its optical signature is too dim to observe with an imager." @default.
- W4297839973 created "2022-10-01" @default.
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- W4297839973 date "2022-01-04" @default.
- W4297839973 modified "2023-10-16" @default.
- W4297839973 title "SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting" @default.
- W4297839973 doi "https://doi.org/10.23919/usnc-ursinrsm57467.2022.9881415" @default.
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