Rocket measurements of high-latitude summer mesospheric [O], OH, O2 Delta and spacecraft glow

Anthony J. Ratkowski; James C. Ulwick

doi:10.1117/12.164825

23 November 1993 Rocket measurements of high-latitude summer mesospheric [O], OH, O2 Delta and spacecraft glow

Anthony J. Ratkowski, James C. Ulwick

Proceedings Volume 2050, Airglow and Aurora; (1993) https://doi.org/10.1117/12.164825
Event: High Latitude Optics, 1993, Tromso, Norway

Abstract

Two rockets, SISSI (Spectroscopic Infrared Structure Signatures Investigation) F2 and F3, were launched during summer twilight conditions at ESRANGE, Kiruna, Sweden in July and August 1990. The payloads contained, in addition to other experiments, an infrared radiometer for the measurement of the OH Meinel (3-1) band and O₂ (¹(Delta) _g) emissions and a resonance fluorescence experiment for the measurement of [O]. SISSI F2 was launched during a fading noctilucent cloud event and F3 during a solar proton event. For both rocket flights and for rocket ascent and rocket descent, an unexpected enhancement of the emission monitored by the OH radiometer was observed above 90 km. The glow was not detected by the O₂ radiometer, was spin modulated, and was different in intensity for the two flights. Atomic oxygen concentration altitude profiles for F2 and F3 were different in peak concentration and in shape and exhibited a spin modulation that correlated with the glow spin modulation. We use these unique data sets with steady-state equations to model and investigate the odd-oxygen concentrations in the polar mesosphere during summer twilight conditions.

Citation Download Citation

Anthony J. Ratkowski and James C. Ulwick "Rocket measurements of high-latitude summer mesospheric [O], OH, O2 Delta and spacecraft glow", Proc. SPIE 2050, Airglow and Aurora, (23 November 1993); https://doi.org/10.1117/12.164825

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