Kagan LM, Nicolls MJ, Kelley MC, Carlson HC, Belikovich VV, Bakhmet'eva NV, Komrakov GP, Trondsen TS, Donovan E. Observation of radio-wave-induced red hydroxyl emission at low altitude in the ionosphere.
Phys Rev Lett 2005;
94:095004. [PMID:
15783973 DOI:
10.1103/physrevlett.94.095004]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2004] [Indexed: 05/24/2023]
Abstract
We report the discovery of radio-wave-induced red emission of OH Meinel rotation-vibrational bands at 629.79 nm. These are the first measurements of artificial aurora below 100 km. We believe that the 629.79-nm OH emission was due to radio-wave focusing by sporadic ionization clouds near 80-85 km altitude, thus giving a technique to visualize the low-altitude sporadic ionization and providing insight into ionospheric interactions at these low altitudes.
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