STEVE
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An aurora-like light found in southern Canada (consistently lower latitude, unlike the aurora borealis which is generally high latitude), composed of a glowing purple ribbon of light, with green spikes coming off obliquely parallel to each other, moving at about 6.5 km/s East to West. Presumably occurs in the southern hemisphere as well.
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An aurora-like light found in southern Canada (consistently lower latitude, unlike the aurora borealis which is generally high latitude), composed of a glowing purple ribbon of light, with green spikes coming off obliquely parallel to each other, moving at about 6.5 km/s East to West. Presumably occurs in the southern hemisphere as well.
Researchers first became aware of STEVE after members of a Facebook group called the Alberta Aurora Chasers (which refers to the province in western Canada) began posting photos of unusual purplish-greenish streaks oriented nearly vertically in the sky.
Although STEVE has been documented by amateur night sky watchers for decades, it is an exciting new upper atmospheric phenomenon for the scientific community.
2018, "Historical observations of STEVE", arXiv, Mark Bailey; Conor Byrne; Rok Nezic; David Asher; James Finnegan;, BIBCODE: 2018arXiv180801872B Respecting its nickname, they have dubbed the phenomenon STEVE, an acronym for Strong Thermal Emission Velocity Enhancement.
First, in the unfiltered white-light STEVE is a narrow purple band with the strongest emissions saturating to white
Étymologie
(2016) Back-formation from Steve (nickname) given to this aurora-like light. Acronym of strong thermal emission velocity enhancement. The nickname "Steve" resulted from a meeting between citizen scientists and researchers from the University of Calgary at a bar, to discuss the purple light. 'Steve' is the namesake of a cartoon character from the 2006 animated film "Over the Hedge", where cartoon animals try to peek over a suburban hedge. The backronym resulted from researchers creating a meaning to the nickname "Steve", keeping the original nickname for the formal name.
STEVE · An aurora-like light found in southern Canada (consistently lower latitude, unlike the aurora borealis which is generally high latitude), composed of…
steven · Voice, especially when loud or strong.Steven · A male given name from Ancient Greek, variant of Stephen.Stevens · A surname originating as a patronymic, derived from the given…